TY  - JOUR
AU  - Folić, Boris
AU  - Folić, Radomir
AU  - Čokić, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7346
AB  - Tehnička teorija savijanja nije primenljiva kod analize i projektovanja nestandardnih armiranobetonskih (AB) nosača, naročito kada su izloženi znatnim smičućim naponima ili pripadaju neregularnim oblastima, u literaturi poznate i kao D oblasti. Ove oblasti mogu biti sa geometrijskim neregularnostima (usled naglih promena dimenzija, naročito visina preseka) ili po silama (unošenje koncentrisanih sila i oblasti blizu reakcija oslonaca). Za analize ovih oblasti se koristi više metoda ali se metoda štapova (pritisnuti kosnici i zatege) najčešće primenjuje jer daje pouzdane rezultate, a lakša je za primenu od kompleksnih numeričkih proračuna, npr. MKE. Oblasti – zone D karakteriše odstupanje od Bernulijeve hipoteze po kojoj se analiziraju standardne oblasti B (dominantno izloženi savijanju). U takvim slučajevima se koriste uprošćene analize, koje daju dovoljno tačne rezultate, za praktične probleme. Korišćenje štapnih modela (strut – and – tie model, skraćeno STM na engleskom) je ilustrovano nizom rešenih primera za konstrukcijsku analizu. Razmatrani su pojedini specifični slučajevi analize. Prikazani su primeri iz gradnje modela i njihova primena za oblikovanje detalja armiranja. U radu se polazi od istorijata razvoja i teorijskih osnova za primenu ove metode kod armiranobetonskih (AB) konstrukcija temelja. Naglasak je na primeni temeljnih jastuka, tj. naglavnica (cap, na engleskom) kod fundiranja na grupi šipova, od dva do pet. Pri tome korišćene su i komentarisane neke međunarodne preporuke (ACI 318, EN 1992, fib 2010, AASHTO 2018, i dr.) i neki karakteristični radovi navedeni u popisu.
PB  - SAVEZ GRAĐEVINSKIH INŽENJERA SRBIJE
T2  - Građevinski kalendar, Vol. 54 Beograd, januar 2023, p. I-X, 1-166
T1  - Primena štapnih modela u analizi i oblikovanju detalja armiranja temelja
T1  - USE OF STRUT AND TIE MODELS IN THE ANALYSIS AND DESIGN OF FOUNDATION REINFORCEMENT DETAILS
EP  - 166
SP  - 82
VL  - 54
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7346
ER  - 

@article{
author = "Folić, Boris and Folić, Radomir and Čokić, Miloš",
year = "2023",
abstract = "Tehnička teorija savijanja nije primenljiva kod analize i projektovanja nestandardnih armiranobetonskih (AB) nosača, naročito kada su izloženi znatnim smičućim naponima ili pripadaju neregularnim oblastima, u literaturi poznate i kao D oblasti. Ove oblasti mogu biti sa geometrijskim neregularnostima (usled naglih promena dimenzija, naročito visina preseka) ili po silama (unošenje koncentrisanih sila i oblasti blizu reakcija oslonaca). Za analize ovih oblasti se koristi više metoda ali se metoda štapova (pritisnuti kosnici i zatege) najčešće primenjuje jer daje pouzdane rezultate, a lakša je za primenu od kompleksnih numeričkih proračuna, npr. MKE. Oblasti – zone D karakteriše odstupanje od Bernulijeve hipoteze po kojoj se analiziraju standardne oblasti B (dominantno izloženi savijanju). U takvim slučajevima se koriste uprošćene analize, koje daju dovoljno tačne rezultate, za praktične probleme. Korišćenje štapnih modela (strut – and – tie model, skraćeno STM na engleskom) je ilustrovano nizom rešenih primera za konstrukcijsku analizu. Razmatrani su pojedini specifični slučajevi analize. Prikazani su primeri iz gradnje modela i njihova primena za oblikovanje detalja armiranja. U radu se polazi od istorijata razvoja i teorijskih osnova za primenu ove metode kod armiranobetonskih (AB) konstrukcija temelja. Naglasak je na primeni temeljnih jastuka, tj. naglavnica (cap, na engleskom) kod fundiranja na grupi šipova, od dva do pet. Pri tome korišćene su i komentarisane neke međunarodne preporuke (ACI 318, EN 1992, fib 2010, AASHTO 2018, i dr.) i neki karakteristični radovi navedeni u popisu.",
publisher = "SAVEZ GRAĐEVINSKIH INŽENJERA SRBIJE",
journal = "Građevinski kalendar, Vol. 54 Beograd, januar 2023, p. I-X, 1-166",
title = "Primena štapnih modela u analizi i oblikovanju detalja armiranja temelja, USE OF STRUT AND TIE MODELS IN THE ANALYSIS AND DESIGN OF FOUNDATION REINFORCEMENT DETAILS",
pages = "166-82",
volume = "54",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7346"
}

Folić, B., Folić, R.,& Čokić, M.. (2023). Primena štapnih modela u analizi i oblikovanju detalja armiranja temelja. in Građevinski kalendar, Vol. 54 Beograd, januar 2023, p. I-X, 1-166
SAVEZ GRAĐEVINSKIH INŽENJERA SRBIJE., 54, 82-166.
https://hdl.handle.net/21.15107/rcub_machinery_7346

Folić B, Folić R, Čokić M. Primena štapnih modela u analizi i oblikovanju detalja armiranja temelja. in Građevinski kalendar, Vol. 54 Beograd, januar 2023, p. I-X, 1-166. 2023;54:82-166.
https://hdl.handle.net/21.15107/rcub_machinery_7346 .

Folić, Boris, Folić, Radomir, Čokić, Miloš, "Primena štapnih modela u analizi i oblikovanju detalja armiranja temelja" in Građevinski kalendar, Vol. 54 Beograd, januar 2023, p. I-X, 1-166, 54 (2023):82-166,
https://hdl.handle.net/21.15107/rcub_machinery_7346 .

TY  - JOUR
AU  - Folić, Radomir
AU  - Čokić, Miloš
AU  - Folić, Boris
AU  - Brujić, Zoran
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7670
AB  - Osim sažetoga pregleda literature, rad sadrži komparativnu analizu armiranobetonskih (AB) zgrada pomoću analize indeksa oštećenja (DI) primjenom različitih metodologija. Seizmički odziv peterokatne okvirne AB zgrade, projektirane u skladu s konstrukcijskim normama Eurokod, analiziran je procjenom vjerojatnosti oštećenja i oštetljivosti. U analizi kojoj je cilj određivanje DI-ja i njegovih parametara primijenjena je metodologija Park–Ang. Provedene su nelinearna statička analiza (NSA) i nelinearna dinamička analiza (NDA) te su na temelju dobivenih rezultata oblikovane krivulje vjerojatnosti oštećenja i oštetljivosti koje su obrađene statističkom analizom. Rezultati su izračunani pomoću četiri različita modela DI-ja: model DIPA primjenom rezultata NSA i NDA (M1), modificirani model DIPA primjenom rezultata NSA i NDA (M2), model DIPA primjenom rezultata NSA (M3), te modificirani model DIPA primjenom rezultata NSA (M4).
AB  - In addition to a concise literature review, this study presents a comparative analysis of reinforced concrete (RC) buildings through damage index (DI) analysis using different methodologies. The seismic response of a five-story RC frame system building, designed in accordance with the EN structural Eurocodes, was analysed through fragility and vulnerability assessments. The Park–Ang methodology was used in the analysis for determining DI and its parameters. Nonlinear static analysis (NSA) and nonlinear dynamic analyses (NDA) were performed, and the fragility and vulnerability curves were constructed using the obtained results and processed through statistical analysis. The results were calculated using four different DI models: the DIPA model using both the NSA and NDA results (M1), modified DIPA model using both the NSA and NDA results (M2), DIPA model using the NSA results (M3), and modified DIPA model using the NSA results (M4).
PB  - Građevinar 75 (2023) 6
PB  - Journal of the Croatian Association of Civil Engineers
T2  - Građevinar
T1  - Procjena oštećenja i analiza vjerojatnosti oštećenja i oštetljivosti armiranobetonske zgrade
T1  - Damage assessment, fragility, and vulnerability analysis of reinforced concrete building
EP  - 606
IS  - 6
SP  - 591
VL  - 75
DO  - 10.14256/JCE.3623.2022
ER  - 

@article{
author = "Folić, Radomir and Čokić, Miloš and Folić, Boris and Brujić, Zoran",
year = "2023",
abstract = "Osim sažetoga pregleda literature, rad sadrži komparativnu analizu armiranobetonskih (AB) zgrada pomoću analize indeksa oštećenja (DI) primjenom različitih metodologija. Seizmički odziv peterokatne okvirne AB zgrade, projektirane u skladu s konstrukcijskim normama Eurokod, analiziran je procjenom vjerojatnosti oštećenja i oštetljivosti. U analizi kojoj je cilj određivanje DI-ja i njegovih parametara primijenjena je metodologija Park–Ang. Provedene su nelinearna statička analiza (NSA) i nelinearna dinamička analiza (NDA) te su na temelju dobivenih rezultata oblikovane krivulje vjerojatnosti oštećenja i oštetljivosti koje su obrađene statističkom analizom. Rezultati su izračunani pomoću četiri različita modela DI-ja: model DIPA primjenom rezultata NSA i NDA (M1), modificirani model DIPA primjenom rezultata NSA i NDA (M2), model DIPA primjenom rezultata NSA (M3), te modificirani model DIPA primjenom rezultata NSA (M4)., In addition to a concise literature review, this study presents a comparative analysis of reinforced concrete (RC) buildings through damage index (DI) analysis using different methodologies. The seismic response of a five-story RC frame system building, designed in accordance with the EN structural Eurocodes, was analysed through fragility and vulnerability assessments. The Park–Ang methodology was used in the analysis for determining DI and its parameters. Nonlinear static analysis (NSA) and nonlinear dynamic analyses (NDA) were performed, and the fragility and vulnerability curves were constructed using the obtained results and processed through statistical analysis. The results were calculated using four different DI models: the DIPA model using both the NSA and NDA results (M1), modified DIPA model using both the NSA and NDA results (M2), DIPA model using the NSA results (M3), and modified DIPA model using the NSA results (M4).",
publisher = "Građevinar 75 (2023) 6, Journal of the Croatian Association of Civil Engineers",
journal = "Građevinar",
title = "Procjena oštećenja i analiza vjerojatnosti oštećenja i oštetljivosti armiranobetonske zgrade, Damage assessment, fragility, and vulnerability analysis of reinforced concrete building",
pages = "606-591",
number = "6",
volume = "75",
doi = "10.14256/JCE.3623.2022"
}

Folić, R., Čokić, M., Folić, B.,& Brujić, Z.. (2023). Procjena oštećenja i analiza vjerojatnosti oštećenja i oštetljivosti armiranobetonske zgrade. in Građevinar
Građevinar 75 (2023) 6., 75(6), 591-606.
https://doi.org/10.14256/JCE.3623.2022

Folić R, Čokić M, Folić B, Brujić Z. Procjena oštećenja i analiza vjerojatnosti oštećenja i oštetljivosti armiranobetonske zgrade. in Građevinar. 2023;75(6):591-606.
doi:10.14256/JCE.3623.2022 .

Folić, Radomir, Čokić, Miloš, Folić, Boris, Brujić, Zoran, "Procjena oštećenja i analiza vjerojatnosti oštećenja i oštetljivosti armiranobetonske zgrade" in Građevinar, 75, no. 6 (2023):591-606,
https://doi.org/10.14256/JCE.3623.2022 . .

TY  - CONF
AU  - Folić, Radomir
AU  - Čokić, Miloš
AU  - Folić, Boris
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7421
AB  - Highway bridges in seismically active regions are often subjected to multiple earthquakes, including multiple main shocks during their service. Repeated seismic events result in reduced structural capacity and may lead to bridge collapse, causing disruption in the normal service. Serious earthquake events cause damage of the elements, with different damage level, even causing them to collapse. It is very important to save the damaged or weakened structures by emergency supporting or/and later strengthening, and to perform rehabilitation of their seismic resistance. The methods of evaluation of seismic resistance of damaged elements and structures are discussed in this paper. After evaluation of the damage degree and determination of the required demands and available seismic resistance of structures, redesign must be performed. Also, the method of rehabilitation of the elements and entire damaged bridge structures are analysed, including both traditional and advanced techniques. The focus of this paper is on reinforced concrete (RC) bridges. Post-earthquake assessment and analysis of the seismic performance of the bridges are analysed. Review and comparison of the international Code provisions related to topic are discussed as well. Criteria for the choice of structural interventions are discussed, as well.
C3  - XXIII INTERNATIONAL SCIENTIFIC CONFERENCE VSU'2023
T1  - Some damages of RC bridges after strong earthquakes
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7421
ER  - 

@conference{
author = "Folić, Radomir and Čokić, Miloš and Folić, Boris",
year = "2023",
abstract = "Highway bridges in seismically active regions are often subjected to multiple earthquakes, including multiple main shocks during their service. Repeated seismic events result in reduced structural capacity and may lead to bridge collapse, causing disruption in the normal service. Serious earthquake events cause damage of the elements, with different damage level, even causing them to collapse. It is very important to save the damaged or weakened structures by emergency supporting or/and later strengthening, and to perform rehabilitation of their seismic resistance. The methods of evaluation of seismic resistance of damaged elements and structures are discussed in this paper. After evaluation of the damage degree and determination of the required demands and available seismic resistance of structures, redesign must be performed. Also, the method of rehabilitation of the elements and entire damaged bridge structures are analysed, including both traditional and advanced techniques. The focus of this paper is on reinforced concrete (RC) bridges. Post-earthquake assessment and analysis of the seismic performance of the bridges are analysed. Review and comparison of the international Code provisions related to topic are discussed as well. Criteria for the choice of structural interventions are discussed, as well.",
journal = "XXIII INTERNATIONAL SCIENTIFIC CONFERENCE VSU'2023",
title = "Some damages of RC bridges after strong earthquakes",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7421"
}

Folić, R., Čokić, M.,& Folić, B.. (2023). Some damages of RC bridges after strong earthquakes. in XXIII INTERNATIONAL SCIENTIFIC CONFERENCE VSU'2023.
https://hdl.handle.net/21.15107/rcub_machinery_7421

Folić R, Čokić M, Folić B. Some damages of RC bridges after strong earthquakes. in XXIII INTERNATIONAL SCIENTIFIC CONFERENCE VSU'2023. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7421 .

Folić, Radomir, Čokić, Miloš, Folić, Boris, "Some damages of RC bridges after strong earthquakes" in XXIII INTERNATIONAL SCIENTIFIC CONFERENCE VSU'2023 (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7421 .

TY  - CONF
AU  - Folić, Radomir
AU  - Čokić, Miloš
AU  - Folić, Boris
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7419
AB  - In this paper, the seismic response of a three 5 story reinforced concrete (RC) frame system buildings is analysed through the fragility and vulnerability analyses. The constructions are designed in accordance with the structural Eurocodes. All three buildings have the same area, but different shape in the base. For the analysis of the response of structural system to the earthquake actions, the method of nonlinear static (NSA) analysis was applied and based on the obtained results, fragility probability density functions and vulnerability curves were constructed using statistical methods. Structural damage state threshold parameters are determined based on the methodologies described in RISK-UE project. Comparative analysis of the structural damage probability for the three analysed RC buildings is applied in both main directions and as the whole as well. Based on the analysis results, final remarks and conclusions were formulated.
C3  - Proceedings of the 2nd Croatian Conference on Earthquake Engineering – 2CroCEE. Zagreb, Croatia - March 22 to 24, 2023
T1  - Fragility and vulnerability analysis of RC buildings with different shapes in the base.
EP  - 484
SP  - 470
DO  - 10.5592/CO/2CroCEE.2023.5
ER  - 

@conference{
author = "Folić, Radomir and Čokić, Miloš and Folić, Boris",
year = "2023",
abstract = "In this paper, the seismic response of a three 5 story reinforced concrete (RC) frame system buildings is analysed through the fragility and vulnerability analyses. The constructions are designed in accordance with the structural Eurocodes. All three buildings have the same area, but different shape in the base. For the analysis of the response of structural system to the earthquake actions, the method of nonlinear static (NSA) analysis was applied and based on the obtained results, fragility probability density functions and vulnerability curves were constructed using statistical methods. Structural damage state threshold parameters are determined based on the methodologies described in RISK-UE project. Comparative analysis of the structural damage probability for the three analysed RC buildings is applied in both main directions and as the whole as well. Based on the analysis results, final remarks and conclusions were formulated.",
journal = "Proceedings of the 2nd Croatian Conference on Earthquake Engineering – 2CroCEE. Zagreb, Croatia - March 22 to 24, 2023",
title = "Fragility and vulnerability analysis of RC buildings with different shapes in the base.",
pages = "484-470",
doi = "10.5592/CO/2CroCEE.2023.5"
}

Folić, R., Čokić, M.,& Folić, B.. (2023). Fragility and vulnerability analysis of RC buildings with different shapes in the base.. in Proceedings of the 2nd Croatian Conference on Earthquake Engineering – 2CroCEE. Zagreb, Croatia - March 22 to 24, 2023, 470-484.
https://doi.org/10.5592/CO/2CroCEE.2023.5

Folić R, Čokić M, Folić B. Fragility and vulnerability analysis of RC buildings with different shapes in the base.. in Proceedings of the 2nd Croatian Conference on Earthquake Engineering – 2CroCEE. Zagreb, Croatia - March 22 to 24, 2023. 2023;:470-484.
doi:10.5592/CO/2CroCEE.2023.5 .

Folić, Radomir, Čokić, Miloš, Folić, Boris, "Fragility and vulnerability analysis of RC buildings with different shapes in the base." in Proceedings of the 2nd Croatian Conference on Earthquake Engineering – 2CroCEE. Zagreb, Croatia - March 22 to 24, 2023 (2023):470-484,
https://doi.org/10.5592/CO/2CroCEE.2023.5 . .

TY  - CONF
AU  - Folić, Boris
AU  - Čokić, Miloš
AU  - Folić, Radomir
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7343
AB  - This paper presents the methodology for determining changes in lateral displacements,
inclination and bending moments and shear forces in piles for static loading. The coefficients of
flexibility and stiffness for piles embedded in different types of soil are shown. Values were
determined for the mentioned deformations and forces, which were presented and analyzed. The
effects of pile depth for horizontal loading were considered. For the vertical load, the impacts of
the depth of the pile according to Vesić were analyzed, such as the friction distribution of along the
pile shaft and the bearing capacity ratio between the base and the shaft. The results include piles
with a hinged connection with the caps and for piles restrained in the caps. The Winkler model was
used for the p-w curve connection for nonlinear analysis. The relationship between the stiffness
matrix and the flexibility of the pile caps is shown. The friction on the pile casing was also analyzed
according to the recommendations of several authors.
AB  - U ovom radu prikazana je metodologija određivanja promene bočnih pomeranja, nagiba i
momenata savijanja i smičućih sila u šipovima, za statičko opterećenje. Prikazani su koeficijenti
fleksibilnosti i krutosti za šipove ugrađene u različite vrste tla. Određene su vrednisti za pomenute
deformacije i sile koje su prezentirane i analizirane. Razmatrani su uticaji po dubini šipa za
horizontalno opterećenje. Za vertikalno opterećenje analizirani su uticaji po dubini šipa prema
Vesiću, kao što je raspodela trenjem po omotaču šipa i odnos nosivosti bazom i omotačem.
Rezultati obuhvataju šipove sa zglobnom vezim sa naglavnicom i za šipove uklještene u naglavnicu.
Za vezu p-w krive za nelinearnu analizu korišćen je Winklerov model. Prikazana je veza matrice
krutosti i flaksibilnosti naglavnica šipova. Analizirano je i trenje po omotaču šipova po
preporukama više autora.
PB  - SAVEZ GRAĐEVINSKIH INŽENJERA SRBIJE
PB  - ASSOCIATION OF CIVIL ENGINEERS OF SERBIA
C3  - Geotechnical aspects of civil engineering and earthquake engineering.  Vrnjačka Banja, 01-03. novembar 2023.
T1  - STATIC LOAD INFLUENCE IN THE PILE CAP AND ALONG THE PILES
T1  - UTICAJI U NAGLAVICI I DUŽ ŠIPA ZA STATIČKO OPTEREĆENJE
EP  - 423
SP  - 414
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7343
ER  - 

@conference{
author = "Folić, Boris and Čokić, Miloš and Folić, Radomir",
year = "2023",
abstract = "This paper presents the methodology for determining changes in lateral displacements,
inclination and bending moments and shear forces in piles for static loading. The coefficients of
flexibility and stiffness for piles embedded in different types of soil are shown. Values were
determined for the mentioned deformations and forces, which were presented and analyzed. The
effects of pile depth for horizontal loading were considered. For the vertical load, the impacts of
the depth of the pile according to Vesić were analyzed, such as the friction distribution of along the
pile shaft and the bearing capacity ratio between the base and the shaft. The results include piles
with a hinged connection with the caps and for piles restrained in the caps. The Winkler model was
used for the p-w curve connection for nonlinear analysis. The relationship between the stiffness
matrix and the flexibility of the pile caps is shown. The friction on the pile casing was also analyzed
according to the recommendations of several authors., U ovom radu prikazana je metodologija određivanja promene bočnih pomeranja, nagiba i
momenata savijanja i smičućih sila u šipovima, za statičko opterećenje. Prikazani su koeficijenti
fleksibilnosti i krutosti za šipove ugrađene u različite vrste tla. Određene su vrednisti za pomenute
deformacije i sile koje su prezentirane i analizirane. Razmatrani su uticaji po dubini šipa za
horizontalno opterećenje. Za vertikalno opterećenje analizirani su uticaji po dubini šipa prema
Vesiću, kao što je raspodela trenjem po omotaču šipa i odnos nosivosti bazom i omotačem.
Rezultati obuhvataju šipove sa zglobnom vezim sa naglavnicom i za šipove uklještene u naglavnicu.
Za vezu p-w krive za nelinearnu analizu korišćen je Winklerov model. Prikazana je veza matrice
krutosti i flaksibilnosti naglavnica šipova. Analizirano je i trenje po omotaču šipova po
preporukama više autora.",
publisher = "SAVEZ GRAĐEVINSKIH INŽENJERA SRBIJE, ASSOCIATION OF CIVIL ENGINEERS OF SERBIA",
journal = "Geotechnical aspects of civil engineering and earthquake engineering.  Vrnjačka Banja, 01-03. novembar 2023.",
title = "STATIC LOAD INFLUENCE IN THE PILE CAP AND ALONG THE PILES, UTICAJI U NAGLAVICI I DUŽ ŠIPA ZA STATIČKO OPTEREĆENJE",
pages = "423-414",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7343"
}

Folić, B., Čokić, M.,& Folić, R.. (2023). STATIC LOAD INFLUENCE IN THE PILE CAP AND ALONG THE PILES. in Geotechnical aspects of civil engineering and earthquake engineering.  Vrnjačka Banja, 01-03. novembar 2023.
SAVEZ GRAĐEVINSKIH INŽENJERA SRBIJE., 414-423.
https://hdl.handle.net/21.15107/rcub_machinery_7343

Folić B, Čokić M, Folić R. STATIC LOAD INFLUENCE IN THE PILE CAP AND ALONG THE PILES. in Geotechnical aspects of civil engineering and earthquake engineering.  Vrnjačka Banja, 01-03. novembar 2023.. 2023;:414-423.
https://hdl.handle.net/21.15107/rcub_machinery_7343 .

Folić, Boris, Čokić, Miloš, Folić, Radomir, "STATIC LOAD INFLUENCE IN THE PILE CAP AND ALONG THE PILES" in Geotechnical aspects of civil engineering and earthquake engineering.  Vrnjačka Banja, 01-03. novembar 2023. (2023):414-423,
https://hdl.handle.net/21.15107/rcub_machinery_7343 .

TY  - CONF
AU  - Folić, Boris
AU  - Liolios, A.
AU  - Ćosić, M.
AU  - Folić, R.
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7319
AB  - The paper indicates the problems of maintaining buildings constructed in the IMS system,
founded on piles with a basement floor. Also presented are the problems with the installations of
buildings with a roof terrace, such as downpipe verticals that are extending through the building,
or installations of water supply and sewerage that run through the technical floor at ground level.
An approximate analysis of the hydrodynamic impact is presented. The analogy of the effects of
caverns in sandy soil with lateral soil expansion (lateral spreading) during liquefaction was also
used. Given the change in climatic conditions, it is necessary in some cases to analyze the influence
of atmospheric conditions in the soil-structure interaction. The advantage of buildings built in the
frame IMS system (Žeželj) in seismically active areas was also indicated. These buildings are also
more resistant to problems that may arise later in construction of deep foundations.
AB  - U radu je ukazano na probleme održavanja objekata u IMS sistemu, fundiranih na
šipovima sa suterenskom etažom. Takođe su naznačeni problemi instalacija objekata sa krovnom
terasom, kao što su olučne vertikale koje se vuku kroz objekat, ili instalacije V/K (vodovoda i
kanalizacije) koje se provlače kroz tehničku etažu u nivou tla. Prikazana je približna analizom
hidridinamičkog udara. Takođe je primenjena i analogija uticaja kaverni u peskovitom tlu sa
bočnim širenjem tla kod likvefakcije. S obzirom na promenu klimatskih uslova potrebno je u nekim
slučajevima u interakciji konstukcija sa tlom analizirati i uticaj atmosferskih prilika. Ukazano je na
prednost zgrada izgrađenih u skeletnom IMS sistemu (Žeželj) u seizmički aktivnim područjima. Ove
zgrade su otpornije i na probleme koji se mogu naknadno javiti kod dubokog fundiranja.
PB  - SGIS
PB  - Savez građevinskih inženjera Srbije
PB  - Association of Civil Engineers of Serbia
PB  - АДИНГ
C3  - Zbornik radova Dvanaestog naučno-stručnog međunarodnog savetovanja
T1  - Effects of maintaining a building constructed in the IMS system (ŽEŽELJ) with an approximate analysis of hydrodynamical shock and the analogy with lateral soil expansion with cavern effects during liquefaction
T1  - Effekti održavanja objekta formiranog u IMS sistemu (ŽEŽELJ) sa približnom analizom hidridinamičkog udara i analogijom uticaja kaverni sa bočnim širenjem tla kod likvefakcije
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7319
ER  - 

@conference{
author = "Folić, Boris and Liolios, A. and Ćosić, M. and Folić, R.",
year = "2022",
abstract = "The paper indicates the problems of maintaining buildings constructed in the IMS system,
founded on piles with a basement floor. Also presented are the problems with the installations of
buildings with a roof terrace, such as downpipe verticals that are extending through the building,
or installations of water supply and sewerage that run through the technical floor at ground level.
An approximate analysis of the hydrodynamic impact is presented. The analogy of the effects of
caverns in sandy soil with lateral soil expansion (lateral spreading) during liquefaction was also
used. Given the change in climatic conditions, it is necessary in some cases to analyze the influence
of atmospheric conditions in the soil-structure interaction. The advantage of buildings built in the
frame IMS system (Žeželj) in seismically active areas was also indicated. These buildings are also
more resistant to problems that may arise later in construction of deep foundations., U radu je ukazano na probleme održavanja objekata u IMS sistemu, fundiranih na
šipovima sa suterenskom etažom. Takođe su naznačeni problemi instalacija objekata sa krovnom
terasom, kao što su olučne vertikale koje se vuku kroz objekat, ili instalacije V/K (vodovoda i
kanalizacije) koje se provlače kroz tehničku etažu u nivou tla. Prikazana je približna analizom
hidridinamičkog udara. Takođe je primenjena i analogija uticaja kaverni u peskovitom tlu sa
bočnim širenjem tla kod likvefakcije. S obzirom na promenu klimatskih uslova potrebno je u nekim
slučajevima u interakciji konstukcija sa tlom analizirati i uticaj atmosferskih prilika. Ukazano je na
prednost zgrada izgrađenih u skeletnom IMS sistemu (Žeželj) u seizmički aktivnim područjima. Ove
zgrade su otpornije i na probleme koji se mogu naknadno javiti kod dubokog fundiranja.",
publisher = "SGIS, Savez građevinskih inženjera Srbije, Association of Civil Engineers of Serbia, АДИНГ",
journal = "Zbornik radova Dvanaestog naučno-stručnog međunarodnog savetovanja",
title = "Effects of maintaining a building constructed in the IMS system (ŽEŽELJ) with an approximate analysis of hydrodynamical shock and the analogy with lateral soil expansion with cavern effects during liquefaction, Effekti održavanja objekta formiranog u IMS sistemu (ŽEŽELJ) sa približnom analizom hidridinamičkog udara i analogijom uticaja kaverni sa bočnim širenjem tla kod likvefakcije",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7319"
}

Folić, B., Liolios, A., Ćosić, M.,& Folić, R.. (2022). Effects of maintaining a building constructed in the IMS system (ŽEŽELJ) with an approximate analysis of hydrodynamical shock and the analogy with lateral soil expansion with cavern effects during liquefaction. in Zbornik radova Dvanaestog naučno-stručnog međunarodnog savetovanja
SGIS..
https://hdl.handle.net/21.15107/rcub_machinery_7319

Folić B, Liolios A, Ćosić M, Folić R. Effects of maintaining a building constructed in the IMS system (ŽEŽELJ) with an approximate analysis of hydrodynamical shock and the analogy with lateral soil expansion with cavern effects during liquefaction. in Zbornik radova Dvanaestog naučno-stručnog međunarodnog savetovanja. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7319 .

Folić, Boris, Liolios, A., Ćosić, M., Folić, R., "Effects of maintaining a building constructed in the IMS system (ŽEŽELJ) with an approximate analysis of hydrodynamical shock and the analogy with lateral soil expansion with cavern effects during liquefaction" in Zbornik radova Dvanaestog naučno-stručnog međunarodnog savetovanja (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7319 .

TY  - CONF
AU  - Folić, R.
AU  - Folić, Boris
AU  - Čokić, Miloš
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7321
AB  - The Bridge Management System (BMS) includes a systematic approach to the organized monitoring of the condition of bridges, especially the registration of defects and damage, and the performance of all activities related to maintenance and rehabilitation during the operation of bridges. In doing so, the owner of the bridges is provided with documentation to make adequate decisions on focusing the budget on individual bridges or the network of bridges according to priority. This paper analyzes some management systems abroad with a brief historical background. Until the 80’s of the previous century there was an active work on the introduction of BMS in Serbia, however since 2010 there has been a pause in the development and implementation of BMS. This situation should be overcome as soon as possible because of the general benefits of well- established and implemented BMSs for the road network and traffic improvement.
AB  - Sistem za upravljanje mostovima (BMS) obuhvata sistematizovan pristup organizovanog praćenja stanja mostova, naročito registracija defekata i oštećenja, i obavljanja svih aktivnosti vezanih za održavanje i rehabilitacije tokom eksploatacije mostova. Pri tome se vlasniku mostova obezbeđuje dokumentacija da donosi adekvatne odluke o usmeravanju budžeta na pojedine mostove ili mrežu mostova prema prioritetu. U ovom radu su analizirani neki sistemi upravljanja u inostranstvu uz sažet prikaz istorijata. U Srbiji je i pored aktivnog rada na uvođenju BMS-a, sve do osamdesetih godina prošlog stoleća, a od 2010. godine nastao je zastoj u razvoju i primeni BMS-a. To stanje bi se moralo što pre prevazići zbog opšte koristi koju dobro postavljen i primenjen BMS donosi putnoj mreži i unapređenju saobraćaja.
PB  - Savez građevinskih inženjera Srbije
PB  - Association of Civil Engineers of Serbia
PB  - SGIS
PB  - ADING
C3  - Zbornik radova Dvanaestog naučno-stručnog međunarodnog savetovanja
T1  - Why the majority of countries use Bridge Management Systems?
T1  - Zašto većina država koristi sistem upravljanja mostovima?
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7321
ER  - 

@conference{
author = "Folić, R. and Folić, Boris and Čokić, Miloš",
year = "2022",
abstract = "The Bridge Management System (BMS) includes a systematic approach to the organized monitoring of the condition of bridges, especially the registration of defects and damage, and the performance of all activities related to maintenance and rehabilitation during the operation of bridges. In doing so, the owner of the bridges is provided with documentation to make adequate decisions on focusing the budget on individual bridges or the network of bridges according to priority. This paper analyzes some management systems abroad with a brief historical background. Until the 80’s of the previous century there was an active work on the introduction of BMS in Serbia, however since 2010 there has been a pause in the development and implementation of BMS. This situation should be overcome as soon as possible because of the general benefits of well- established and implemented BMSs for the road network and traffic improvement., Sistem za upravljanje mostovima (BMS) obuhvata sistematizovan pristup organizovanog praćenja stanja mostova, naročito registracija defekata i oštećenja, i obavljanja svih aktivnosti vezanih za održavanje i rehabilitacije tokom eksploatacije mostova. Pri tome se vlasniku mostova obezbeđuje dokumentacija da donosi adekvatne odluke o usmeravanju budžeta na pojedine mostove ili mrežu mostova prema prioritetu. U ovom radu su analizirani neki sistemi upravljanja u inostranstvu uz sažet prikaz istorijata. U Srbiji je i pored aktivnog rada na uvođenju BMS-a, sve do osamdesetih godina prošlog stoleća, a od 2010. godine nastao je zastoj u razvoju i primeni BMS-a. To stanje bi se moralo što pre prevazići zbog opšte koristi koju dobro postavljen i primenjen BMS donosi putnoj mreži i unapređenju saobraćaja.",
publisher = "Savez građevinskih inženjera Srbije, Association of Civil Engineers of Serbia, SGIS, ADING",
journal = "Zbornik radova Dvanaestog naučno-stručnog međunarodnog savetovanja",
title = "Why the majority of countries use Bridge Management Systems?, Zašto većina država koristi sistem upravljanja mostovima?",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7321"
}

Folić, R., Folić, B.,& Čokić, M.. (2022). Why the majority of countries use Bridge Management Systems?. in Zbornik radova Dvanaestog naučno-stručnog međunarodnog savetovanja
Savez građevinskih inženjera Srbije..
https://hdl.handle.net/21.15107/rcub_machinery_7321

Folić R, Folić B, Čokić M. Why the majority of countries use Bridge Management Systems?. in Zbornik radova Dvanaestog naučno-stručnog međunarodnog savetovanja. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7321 .

Folić, R., Folić, Boris, Čokić, Miloš, "Why the majority of countries use Bridge Management Systems?" in Zbornik radova Dvanaestog naučno-stručnog međunarodnog savetovanja (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7321 .

TY  - CONF
AU  - Folić, Radomir
AU  - Čokić, Miloš
AU  - Folić, Boris
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7324
AB  - Analiza robusnosti konstrukcija je veoma kompleksna sa velikim brojem uticajnih parametara na ponašanje sistema izloženeg određenom dejstvu. Robusnost predstavlja mogućnost konstrukcije da se, u slučaju lokalnog/delimičnog loma odupre progresivnom rušenju. U ovom radu analiziran je uticaj uklanjanja ugaonih stubova na robusnost konstrukcije AB višespratne zgrade. Upoređene su razlika odgovora konstrukcije pri uklanjanju stubova na uglu zgrade i izvorne konstrkcije. Komparativna analiza izražena je sračunatim vrednostima graničnih stanja, krivih povredljivosti i procenjenih gubitka.
AB  - The robustness of structures is a very complex problem with a large number of parameters that influence the analysis settings and the results that describe the behaviour of the system exposed to a certain action. Robustness represents the ability of a structural system to resist the progressive collapse. In this paper, the effect of the removal of the corner columns on the structural response and robustness of the structure was analysed. The goal of this research was to compare the difference of the structural response of the building, before and after the removal of the corner columns. In this paper, the effect of the removal of the corner columns was described through the limit state values comparison, fragility and vulnerability curves. Based on the analysis, obtained results are compared and final remarks and conclusions were formulated.
PB  - Društvo građevinskih konstruktera Srbije
T1  - Analiza robusnosti AB zgrade za različite scenarije uklanjanja ivičnih stubova
T1  - Robustness analysis of a RC building for a different corner columns removal scenarios
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7324
ER  - 

@conference{
author = "Folić, Radomir and Čokić, Miloš and Folić, Boris",
year = "2022",
abstract = "Analiza robusnosti konstrukcija je veoma kompleksna sa velikim brojem uticajnih parametara na ponašanje sistema izloženeg određenom dejstvu. Robusnost predstavlja mogućnost konstrukcije da se, u slučaju lokalnog/delimičnog loma odupre progresivnom rušenju. U ovom radu analiziran je uticaj uklanjanja ugaonih stubova na robusnost konstrukcije AB višespratne zgrade. Upoređene su razlika odgovora konstrukcije pri uklanjanju stubova na uglu zgrade i izvorne konstrkcije. Komparativna analiza izražena je sračunatim vrednostima graničnih stanja, krivih povredljivosti i procenjenih gubitka., The robustness of structures is a very complex problem with a large number of parameters that influence the analysis settings and the results that describe the behaviour of the system exposed to a certain action. Robustness represents the ability of a structural system to resist the progressive collapse. In this paper, the effect of the removal of the corner columns on the structural response and robustness of the structure was analysed. The goal of this research was to compare the difference of the structural response of the building, before and after the removal of the corner columns. In this paper, the effect of the removal of the corner columns was described through the limit state values comparison, fragility and vulnerability curves. Based on the analysis, obtained results are compared and final remarks and conclusions were formulated.",
publisher = "Društvo građevinskih konstruktera Srbije",
title = "Analiza robusnosti AB zgrade za različite scenarije uklanjanja ivičnih stubova, Robustness analysis of a RC building for a different corner columns removal scenarios",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7324"
}

Folić, R., Čokić, M.,& Folić, B.. (2022). Analiza robusnosti AB zgrade za različite scenarije uklanjanja ivičnih stubova. 
Društvo građevinskih konstruktera Srbije..
https://hdl.handle.net/21.15107/rcub_machinery_7324

Folić R, Čokić M, Folić B. Analiza robusnosti AB zgrade za različite scenarije uklanjanja ivičnih stubova. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7324 .

Folić, Radomir, Čokić, Miloš, Folić, Boris, "Analiza robusnosti AB zgrade za različite scenarije uklanjanja ivičnih stubova" (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7324 .

TY  - CONF
AU  - Folić, Boris
AU  - Folić, Radomir
AU  - Čokić, Miloš
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7325
AB  - The paper shows some characteristic problems of determining the axial stiffness of the pile and redistribution in a group. Some advantages and drawbacks of the use of individual design models are indicated. In the redistribution, the zero iteration is considered, which a condition is when the connecting beams or rafts are fully flexible, and the final iteration when the deflections of the piles are equalized. In the zero iteration, all the forces in the piles are of the same intensity, because only the centrically loaded raft is considered, but the deflections of individual piles during interaction are different. Due to the symmetry of the problem, in the zero iteration, only the certain groups have the equalized deflections of piles, but there is no equalized deflection of the groups themselves. In the final iteration, a distribution of forces in which the deflections of the individual piles during interaction are equalized is sought, i.e. a tolerance that is a relative error of 10 -5 in relation to the mean deflection is set. The soil model with the linear distribution with depth is considered. The effect of the distance of piles on the interaction is studied. Key words: Vertical stiffness, Vertical interaction, Redistribution during Pile-Soil- Pile interaction, distance influences of interaction.
T1  - Vertical stiffness of piles and redistribution due to interaction for linear change of soil modulus by depth
T1  - Vertiklana krutost šipova i preraspodela tokom interakcije za linernu promenu modula tla po dubini
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7325
ER  - 

@conference{
author = "Folić, Boris and Folić, Radomir and Čokić, Miloš",
year = "2022",
abstract = "The paper shows some characteristic problems of determining the axial stiffness of the pile and redistribution in a group. Some advantages and drawbacks of the use of individual design models are indicated. In the redistribution, the zero iteration is considered, which a condition is when the connecting beams or rafts are fully flexible, and the final iteration when the deflections of the piles are equalized. In the zero iteration, all the forces in the piles are of the same intensity, because only the centrically loaded raft is considered, but the deflections of individual piles during interaction are different. Due to the symmetry of the problem, in the zero iteration, only the certain groups have the equalized deflections of piles, but there is no equalized deflection of the groups themselves. In the final iteration, a distribution of forces in which the deflections of the individual piles during interaction are equalized is sought, i.e. a tolerance that is a relative error of 10 -5 in relation to the mean deflection is set. The soil model with the linear distribution with depth is considered. The effect of the distance of piles on the interaction is studied. Key words: Vertical stiffness, Vertical interaction, Redistribution during Pile-Soil- Pile interaction, distance influences of interaction.",
title = "Vertical stiffness of piles and redistribution due to interaction for linear change of soil modulus by depth, Vertiklana krutost šipova i preraspodela tokom interakcije za linernu promenu modula tla po dubini",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7325"
}

Folić, B., Folić, R.,& Čokić, M.. (2022). Vertical stiffness of piles and redistribution due to interaction for linear change of soil modulus by depth. .
https://hdl.handle.net/21.15107/rcub_machinery_7325

Folić B, Folić R, Čokić M. Vertical stiffness of piles and redistribution due to interaction for linear change of soil modulus by depth. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7325 .

Folić, Boris, Folić, Radomir, Čokić, Miloš, "Vertical stiffness of piles and redistribution due to interaction for linear change of soil modulus by depth" (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7325 .

TY  - JOUR
AU  - Liolios, A.
AU  - Moropoulou, A.
AU  - Liolios, Konstantinos
AU  - Partov, D.
AU  - Peidis, D.
AU  - Folić, Boris
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7335
AB  - Historic old existing industrial reinforced concrete (RC) structures are often subjected to removal of structural elements due to degradation caused by environmental effects. So they are in a risk of seismic progressive collapse. In order to prevent this risk, a strengthening by cable elements (tension-ties) can be used. The probabilistic analysis of such RC structures under critical seismic loading is herein numerically investigated. The unilateral behavior of the cable-elements, which can undertake tension stresses only, is strictly taken into account. Attention is given to uncertainties concerning structural input parameters, common for such old RC structures belonging to built Cultural Heritage. For their treatment, Monte Carlo techniques are applied. The proposed methodology is explained in a numerical example.
PB  - Българска академия на науките и изкуствата Научен институт по Архитектура, Строителство и Градоустройство Bulgarian academy of science and arts Scientific Institute for Architecture, Construction and Urban Planning
T2  - BASA’ 2022. 21-23 november 2022 proceedings International scientific conference “PRESERVATION OF CULTURAL HERITAGE” Sofia 2023
T1  - A stochastic approach for historic RC structures strengthened by ties to prevent seismic progressive collapse
EP  - 168
SP  - 161
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7335
ER  - 

@article{
author = "Liolios, A. and Moropoulou, A. and Liolios, Konstantinos and Partov, D. and Peidis, D. and Folić, Boris",
year = "2022",
abstract = "Historic old existing industrial reinforced concrete (RC) structures are often subjected to removal of structural elements due to degradation caused by environmental effects. So they are in a risk of seismic progressive collapse. In order to prevent this risk, a strengthening by cable elements (tension-ties) can be used. The probabilistic analysis of such RC structures under critical seismic loading is herein numerically investigated. The unilateral behavior of the cable-elements, which can undertake tension stresses only, is strictly taken into account. Attention is given to uncertainties concerning structural input parameters, common for such old RC structures belonging to built Cultural Heritage. For their treatment, Monte Carlo techniques are applied. The proposed methodology is explained in a numerical example.",
publisher = "Българска академия на науките и изкуствата Научен институт по Архитектура, Строителство и Градоустройство Bulgarian academy of science and arts Scientific Institute for Architecture, Construction and Urban Planning",
journal = "BASA’ 2022. 21-23 november 2022 proceedings International scientific conference “PRESERVATION OF CULTURAL HERITAGE” Sofia 2023",
title = "A stochastic approach for historic RC structures strengthened by ties to prevent seismic progressive collapse",
pages = "168-161",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7335"
}

Liolios, A., Moropoulou, A., Liolios, K., Partov, D., Peidis, D.,& Folić, B.. (2022). A stochastic approach for historic RC structures strengthened by ties to prevent seismic progressive collapse. in BASA’ 2022. 21-23 november 2022 proceedings International scientific conference “PRESERVATION OF CULTURAL HERITAGE” Sofia 2023
Българска академия на науките и изкуствата Научен институт по Архитектура, Строителство и Градоустройство Bulgarian academy of science and arts Scientific Institute for Architecture, Construction and Urban Planning., 161-168.
https://hdl.handle.net/21.15107/rcub_machinery_7335

Liolios A, Moropoulou A, Liolios K, Partov D, Peidis D, Folić B. A stochastic approach for historic RC structures strengthened by ties to prevent seismic progressive collapse. in BASA’ 2022. 21-23 november 2022 proceedings International scientific conference “PRESERVATION OF CULTURAL HERITAGE” Sofia 2023. 2022;:161-168.
https://hdl.handle.net/21.15107/rcub_machinery_7335 .

Liolios, A., Moropoulou, A., Liolios, Konstantinos, Partov, D., Peidis, D., Folić, Boris, "A stochastic approach for historic RC structures strengthened by ties to prevent seismic progressive collapse" in BASA’ 2022. 21-23 november 2022 proceedings International scientific conference “PRESERVATION OF CULTURAL HERITAGE” Sofia 2023 (2022):161-168,
https://hdl.handle.net/21.15107/rcub_machinery_7335 .

TY  - CONF
AU  - Folić, Radomir
AU  - Čokić, Miloš
AU  - Folić, Boris
AU  - Liolios, Angelos
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7336
AB  - Building’s structures were designed and built according to different standards that were valid at the time of construction. Those standards were, more or less, less demanding than the current European, American and other modern standards. Serious earthquakes events cause damage of the elements, with different level, even their collapse. It is very important to save damaged or weakened structures by emergency strengthening, and to perform rehabilitation of their seismic resistance. The method of evaluation of seismic resistance of damaged elements and structures are discussed. After evaluation of the damage degree and determination of required and available seismic resistance of structures, redesign must be performed. Also, method of rehabilitation of the elements and entire damaged building structures are analysed, including both traditional and advanced techniques. The focus of this paper is on reinforced concrete (RC) buildings, and less on masonry and mixed structures. Post-earthquake assessment and analysis of seismic performance are analysed. Review and comparison of international Code provisionsrelated to topic are discussed as well. Criteria for the choice of structural interventions are discussed, as well.
PB  - Българска академия на науките и изкуствата Научен институт по Архитектура, Строителство и Градоустройство Bulgarian academy of science and arts Scientific Institute for Architecture, Construction and Urban Planning
C3  - BASA’ 2022. 21-23 november 2022 proceedings International scientific conference “PRESERVATION OF CULTURAL HERITAGE” Sofia 2023
T1  - Seismic damage of building structures and their rehabilitation
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7336
ER  - 

@conference{
author = "Folić, Radomir and Čokić, Miloš and Folić, Boris and Liolios, Angelos",
year = "2022",
abstract = "Building’s structures were designed and built according to different standards that were valid at the time of construction. Those standards were, more or less, less demanding than the current European, American and other modern standards. Serious earthquakes events cause damage of the elements, with different level, even their collapse. It is very important to save damaged or weakened structures by emergency strengthening, and to perform rehabilitation of their seismic resistance. The method of evaluation of seismic resistance of damaged elements and structures are discussed. After evaluation of the damage degree and determination of required and available seismic resistance of structures, redesign must be performed. Also, method of rehabilitation of the elements and entire damaged building structures are analysed, including both traditional and advanced techniques. The focus of this paper is on reinforced concrete (RC) buildings, and less on masonry and mixed structures. Post-earthquake assessment and analysis of seismic performance are analysed. Review and comparison of international Code provisionsrelated to topic are discussed as well. Criteria for the choice of structural interventions are discussed, as well.",
publisher = "Българска академия на науките и изкуствата Научен институт по Архитектура, Строителство и Градоустройство Bulgarian academy of science and arts Scientific Institute for Architecture, Construction and Urban Planning",
journal = "BASA’ 2022. 21-23 november 2022 proceedings International scientific conference “PRESERVATION OF CULTURAL HERITAGE” Sofia 2023",
title = "Seismic damage of building structures and their rehabilitation",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7336"
}

Folić, R., Čokić, M., Folić, B.,& Liolios, A.. (2022). Seismic damage of building structures and their rehabilitation. in BASA’ 2022. 21-23 november 2022 proceedings International scientific conference “PRESERVATION OF CULTURAL HERITAGE” Sofia 2023
Българска академия на науките и изкуствата Научен институт по Архитектура, Строителство и Градоустройство Bulgarian academy of science and arts Scientific Institute for Architecture, Construction and Urban Planning..
https://hdl.handle.net/21.15107/rcub_machinery_7336

Folić R, Čokić M, Folić B, Liolios A. Seismic damage of building structures and their rehabilitation. in BASA’ 2022. 21-23 november 2022 proceedings International scientific conference “PRESERVATION OF CULTURAL HERITAGE” Sofia 2023. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7336 .

Folić, Radomir, Čokić, Miloš, Folić, Boris, Liolios, Angelos, "Seismic damage of building structures and their rehabilitation" in BASA’ 2022. 21-23 november 2022 proceedings International scientific conference “PRESERVATION OF CULTURAL HERITAGE” Sofia 2023 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7336 .

TY  - CONF
AU  - Folić, Radomir
AU  - Kurtović-Folić, Nadja
AU  - Folić, Boris
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7344
AB  - U radu je dat osvrt na termine koji se koriste u oblasti održavanja i
eksploataciong veka betonskih zgrada saglasno novim međunarodnim dokumentima.
Komentarisane su i analizirane neke Preporuke za integrisano projektovanje
eksploatacionog veka i održavanja kao novog pristupa koji doprinosi održivosti
konstrukcija betonskih zgrada (društveni, ekonomski i ekološki aspekti). Obuhvaćena je
metodologija pregleda i procene stanja zgrada. Prikazana je internacionalna i naša
regulativa u ovoj oblasti (Pravilnik za konstrukcije) i Zakon o održavanju zgrada.
Komentarisane su metode održavanja (korektivno, preventivno, prema stanju i
kombinovano).
AB  - The paper reviews the terms used in the field of maintenance and operational
life of concrete buildings in compliance with new international documents. Some
Recommendations for integrated design of service life and maintenance as a new
approach that contributes to the sustainability of concrete building structures (social,
economic and ecological aspects) are commented and analyzed. The methodology of
inspection and assessment of the condition of buildings is covered. Some of International
and our regulations in this area (Regulations for Structures) and the Building
Maintenance Act are presented. Maintenance methods (corrective, preventive, according
to condition and combined maintenance) are commented on.
PB  - DIMK
PB  - SIGP
C3  - Zbornik (Proc.). XXVIII Kongres DIMK i IXV SIGP, Međunarodni simpozijum o istraživanju i primeni savremenih dostignuća u oblasti materijala i konstrukcije, Divčibare
T1  - Integrated design, service life and maintenance of concrete buildings – Sustenability
EP  - 547
SP  - 537
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7344
ER  - 

@conference{
author = "Folić, Radomir and Kurtović-Folić, Nadja and Folić, Boris",
year = "2022",
abstract = "U radu je dat osvrt na termine koji se koriste u oblasti održavanja i
eksploataciong veka betonskih zgrada saglasno novim međunarodnim dokumentima.
Komentarisane su i analizirane neke Preporuke za integrisano projektovanje
eksploatacionog veka i održavanja kao novog pristupa koji doprinosi održivosti
konstrukcija betonskih zgrada (društveni, ekonomski i ekološki aspekti). Obuhvaćena je
metodologija pregleda i procene stanja zgrada. Prikazana je internacionalna i naša
regulativa u ovoj oblasti (Pravilnik za konstrukcije) i Zakon o održavanju zgrada.
Komentarisane su metode održavanja (korektivno, preventivno, prema stanju i
kombinovano)., The paper reviews the terms used in the field of maintenance and operational
life of concrete buildings in compliance with new international documents. Some
Recommendations for integrated design of service life and maintenance as a new
approach that contributes to the sustainability of concrete building structures (social,
economic and ecological aspects) are commented and analyzed. The methodology of
inspection and assessment of the condition of buildings is covered. Some of International
and our regulations in this area (Regulations for Structures) and the Building
Maintenance Act are presented. Maintenance methods (corrective, preventive, according
to condition and combined maintenance) are commented on.",
publisher = "DIMK, SIGP",
journal = "Zbornik (Proc.). XXVIII Kongres DIMK i IXV SIGP, Međunarodni simpozijum o istraživanju i primeni savremenih dostignuća u oblasti materijala i konstrukcije, Divčibare",
title = "Integrated design, service life and maintenance of concrete buildings – Sustenability",
pages = "547-537",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7344"
}

Folić, R., Kurtović-Folić, N.,& Folić, B.. (2022). Integrated design, service life and maintenance of concrete buildings – Sustenability. in Zbornik (Proc.). XXVIII Kongres DIMK i IXV SIGP, Međunarodni simpozijum o istraživanju i primeni savremenih dostignuća u oblasti materijala i konstrukcije, Divčibare
DIMK., 537-547.
https://hdl.handle.net/21.15107/rcub_machinery_7344

Folić R, Kurtović-Folić N, Folić B. Integrated design, service life and maintenance of concrete buildings – Sustenability. in Zbornik (Proc.). XXVIII Kongres DIMK i IXV SIGP, Međunarodni simpozijum o istraživanju i primeni savremenih dostignuća u oblasti materijala i konstrukcije, Divčibare. 2022;:537-547.
https://hdl.handle.net/21.15107/rcub_machinery_7344 .

Folić, Radomir, Kurtović-Folić, Nadja, Folić, Boris, "Integrated design, service life and maintenance of concrete buildings – Sustenability" in Zbornik (Proc.). XXVIII Kongres DIMK i IXV SIGP, Međunarodni simpozijum o istraživanju i primeni savremenih dostignuća u oblasti materijala i konstrukcije, Divčibare (2022):537-547,
https://hdl.handle.net/21.15107/rcub_machinery_7344 .

TY  - CONF
AU  - Folić, Boris
AU  - Folić, Radomir
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7345
PB  - Macedonian Ass. for Geotechnics
C3  - Fifth Simposium of the Macedonian Ass. for Geotechnics, Key note lecture, 23 - 25, June, 2022, Ohrid; Proc.
T1  - Vertical interaction of grouped 3x3 piles
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7345
ER  - 

@conference{
author = "Folić, Boris and Folić, Radomir",
year = "2022",
publisher = "Macedonian Ass. for Geotechnics",
journal = "Fifth Simposium of the Macedonian Ass. for Geotechnics, Key note lecture, 23 - 25, June, 2022, Ohrid; Proc.",
title = "Vertical interaction of grouped 3x3 piles",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7345"
}

Folić, B.,& Folić, R.. (2022). Vertical interaction of grouped 3x3 piles. in Fifth Simposium of the Macedonian Ass. for Geotechnics, Key note lecture, 23 - 25, June, 2022, Ohrid; Proc.
Macedonian Ass. for Geotechnics..
https://hdl.handle.net/21.15107/rcub_machinery_7345

Folić B, Folić R. Vertical interaction of grouped 3x3 piles. in Fifth Simposium of the Macedonian Ass. for Geotechnics, Key note lecture, 23 - 25, June, 2022, Ohrid; Proc.. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7345 .

Folić, Boris, Folić, Radomir, "Vertical interaction of grouped 3x3 piles" in Fifth Simposium of the Macedonian Ass. for Geotechnics, Key note lecture, 23 - 25, June, 2022, Ohrid; Proc. (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7345 .

TY  - CONF
AU  - Liolios, A.
AU  - Liolios, K.
AU  - Konstandakopoulou, F.
AU  - Partov, D.
AU  - Folić, Boris
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7435
PB  - XXII Anniversary International Scientific Conference by Construction and Architecture VSU’2022. Sofia, Bulgaria
C3  - XXII Anniversary International Scientific Conference by Construction and Architecture VSU’2022
T1  - Pounding effects on the seismic response of adjacent RC structures: A stochastic numerical approach for uncertain input parameters
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7435
ER  - 

@conference{
author = "Liolios, A. and Liolios, K. and Konstandakopoulou, F. and Partov, D. and Folić, Boris",
year = "2022",
publisher = "XXII Anniversary International Scientific Conference by Construction and Architecture VSU’2022. Sofia, Bulgaria",
journal = "XXII Anniversary International Scientific Conference by Construction and Architecture VSU’2022",
title = "Pounding effects on the seismic response of adjacent RC structures: A stochastic numerical approach for uncertain input parameters",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7435"
}

Liolios, A., Liolios, K., Konstandakopoulou, F., Partov, D.,& Folić, B.. (2022). Pounding effects on the seismic response of adjacent RC structures: A stochastic numerical approach for uncertain input parameters. in XXII Anniversary International Scientific Conference by Construction and Architecture VSU’2022
XXII Anniversary International Scientific Conference by Construction and Architecture VSU’2022. Sofia, Bulgaria..
https://hdl.handle.net/21.15107/rcub_machinery_7435

Liolios A, Liolios K, Konstandakopoulou F, Partov D, Folić B. Pounding effects on the seismic response of adjacent RC structures: A stochastic numerical approach for uncertain input parameters. in XXII Anniversary International Scientific Conference by Construction and Architecture VSU’2022. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7435 .

Liolios, A., Liolios, K., Konstandakopoulou, F., Partov, D., Folić, Boris, "Pounding effects on the seismic response of adjacent RC structures: A stochastic numerical approach for uncertain input parameters" in XXII Anniversary International Scientific Conference by Construction and Architecture VSU’2022 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7435 .

TY  - JOUR
AU  - Jelić, Mirjana
AU  - Sedmak, Aleksandar
AU  - Sedmak, Simon
AU  - Folić, Boris
AU  - Folić, Radomir
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3478
AB  - This paper involves the analytical and numerical calculations of the the largest pre-stressed concrete free-standing structure in the world - the Dome of the "Hall 1 of the Belgrade Fair", designed by a well-known Serbian scientist and engineer Branko Zezelj, one of the founders of the Institute for testing of materials IMS in Belgrade, conveniently positioned just across the street, best known for coming up with a concrete pre-stressing system, which is still widely used today. As a part of this research, this large and unique structure will be analyzed from point of view of structural integrity, including numerical simulation of crack growth in one of its support columns. Presented analyses also include the calculation of forces and moments in the structure as a whole, while also taking into account foundation displacements in the columns.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Numerical simulation of "Hall 1 of the Belgrade Fair"
VL  - 127
DO  - 10.1016/j.engfailanal.2021.105570
ER  - 

@article{
author = "Jelić, Mirjana and Sedmak, Aleksandar and Sedmak, Simon and Folić, Boris and Folić, Radomir",
year = "2021",
abstract = "This paper involves the analytical and numerical calculations of the the largest pre-stressed concrete free-standing structure in the world - the Dome of the "Hall 1 of the Belgrade Fair", designed by a well-known Serbian scientist and engineer Branko Zezelj, one of the founders of the Institute for testing of materials IMS in Belgrade, conveniently positioned just across the street, best known for coming up with a concrete pre-stressing system, which is still widely used today. As a part of this research, this large and unique structure will be analyzed from point of view of structural integrity, including numerical simulation of crack growth in one of its support columns. Presented analyses also include the calculation of forces and moments in the structure as a whole, while also taking into account foundation displacements in the columns.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Numerical simulation of "Hall 1 of the Belgrade Fair"",
volume = "127",
doi = "10.1016/j.engfailanal.2021.105570"
}

Jelić, M., Sedmak, A., Sedmak, S., Folić, B.,& Folić, R.. (2021). Numerical simulation of "Hall 1 of the Belgrade Fair". in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 127.
https://doi.org/10.1016/j.engfailanal.2021.105570

Jelić M, Sedmak A, Sedmak S, Folić B, Folić R. Numerical simulation of "Hall 1 of the Belgrade Fair". in Engineering Failure Analysis. 2021;127.
doi:10.1016/j.engfailanal.2021.105570 .

Jelić, Mirjana, Sedmak, Aleksandar, Sedmak, Simon, Folić, Boris, Folić, Radomir, "Numerical simulation of "Hall 1 of the Belgrade Fair"" in Engineering Failure Analysis, 127 (2021),
https://doi.org/10.1016/j.engfailanal.2021.105570 . .

TY  - CONF
AU  - Liolios, A.
AU  - Hatzigeorgiou, G.
AU  - Liolios, K.
AU  - Folić, Boris
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7413
AB  - The unilateral contact problem of dynamic soil-pipeline interaction under uncertainty
concerning input parameters is treated numerically by a computational stochastic approach.
Unilateral contact effects due to tensionless soil capacity, soil elastoplastic-fracturing
behaviour and gapping are strictly taken into account, as well as environmental effects
decreasing the soil resistance. The proposed methodology concerns the treatment of both,
the deterministic and the probabilistic problem. The numerical approach concerning the
deterministic problem is based on a double discretization, in space by the Finite Element
Method combined with Boundary Element Method, and in time, and on nonconvex
optimization. Uncertainties concerning the input parameter values are treated as bounded by
upper and lower bound estimates using the Monte Carlo method in the probabilistic
problem section. Finally, the proposed methodology is applied for a practical case of
seismic soil-pipeline interaction.
PB  - Union of Engineers and Technicians of Serbia
PB  - SGITS
C3  - Proceedings. International scientific conference. Earthquake engineering and geotechnical aspects of civil engineering. Editor: Prof. emeritus dr Radomir Folić. Vrnjačka Banja, 03. - 05. novembar 2021. Union of Engineers and Technicians of Serbia. (Elektronski izvor]
T1  - SEISMIC PIPELINE-SOIL INTERACTION UNDER UNCERTAIN-BUT-BOUNDED INPUT PARAMETERS: A STOCHASTIC NUMERICAL APPROACH
EP  - 174
SP  - 166
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7413
ER  - 

@conference{
author = "Liolios, A. and Hatzigeorgiou, G. and Liolios, K. and Folić, Boris",
year = "2021",
abstract = "The unilateral contact problem of dynamic soil-pipeline interaction under uncertainty
concerning input parameters is treated numerically by a computational stochastic approach.
Unilateral contact effects due to tensionless soil capacity, soil elastoplastic-fracturing
behaviour and gapping are strictly taken into account, as well as environmental effects
decreasing the soil resistance. The proposed methodology concerns the treatment of both,
the deterministic and the probabilistic problem. The numerical approach concerning the
deterministic problem is based on a double discretization, in space by the Finite Element
Method combined with Boundary Element Method, and in time, and on nonconvex
optimization. Uncertainties concerning the input parameter values are treated as bounded by
upper and lower bound estimates using the Monte Carlo method in the probabilistic
problem section. Finally, the proposed methodology is applied for a practical case of
seismic soil-pipeline interaction.",
publisher = "Union of Engineers and Technicians of Serbia, SGITS",
journal = "Proceedings. International scientific conference. Earthquake engineering and geotechnical aspects of civil engineering. Editor: Prof. emeritus dr Radomir Folić. Vrnjačka Banja, 03. - 05. novembar 2021. Union of Engineers and Technicians of Serbia. (Elektronski izvor]",
title = "SEISMIC PIPELINE-SOIL INTERACTION UNDER UNCERTAIN-BUT-BOUNDED INPUT PARAMETERS: A STOCHASTIC NUMERICAL APPROACH",
pages = "174-166",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7413"
}

Liolios, A., Hatzigeorgiou, G., Liolios, K.,& Folić, B.. (2021). SEISMIC PIPELINE-SOIL INTERACTION UNDER UNCERTAIN-BUT-BOUNDED INPUT PARAMETERS: A STOCHASTIC NUMERICAL APPROACH. in Proceedings. International scientific conference. Earthquake engineering and geotechnical aspects of civil engineering. Editor: Prof. emeritus dr Radomir Folić. Vrnjačka Banja, 03. - 05. novembar 2021. Union of Engineers and Technicians of Serbia. (Elektronski izvor]
Union of Engineers and Technicians of Serbia., 166-174.
https://hdl.handle.net/21.15107/rcub_machinery_7413

Liolios A, Hatzigeorgiou G, Liolios K, Folić B. SEISMIC PIPELINE-SOIL INTERACTION UNDER UNCERTAIN-BUT-BOUNDED INPUT PARAMETERS: A STOCHASTIC NUMERICAL APPROACH. in Proceedings. International scientific conference. Earthquake engineering and geotechnical aspects of civil engineering. Editor: Prof. emeritus dr Radomir Folić. Vrnjačka Banja, 03. - 05. novembar 2021. Union of Engineers and Technicians of Serbia. (Elektronski izvor]. 2021;:166-174.
https://hdl.handle.net/21.15107/rcub_machinery_7413 .

Liolios, A., Hatzigeorgiou, G., Liolios, K., Folić, Boris, "SEISMIC PIPELINE-SOIL INTERACTION UNDER UNCERTAIN-BUT-BOUNDED INPUT PARAMETERS: A STOCHASTIC NUMERICAL APPROACH" in Proceedings. International scientific conference. Earthquake engineering and geotechnical aspects of civil engineering. Editor: Prof. emeritus dr Radomir Folić. Vrnjačka Banja, 03. - 05. novembar 2021. Union of Engineers and Technicians of Serbia. (Elektronski izvor] (2021):166-174,
https://hdl.handle.net/21.15107/rcub_machinery_7413 .

TY  - CONF
AU  - Čokić, Miloš
AU  - Folić, Boris
AU  - Folić, Radomir
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7420
AB  - In the countries of the former Yugoslavia, the first regulations for the design of seismically resistant structures date back to 1964, and the reason for their adoption was the Skopje earthquake in 1963. 
The next, much more advanced structural code dates from 1981 with a few additions. Many RC multi-storey buildings were designed and built according to the mentioned code for high-rise buildings from 1981, especially in larger cities. Some of the reasons were that they are mainly calculated according to their bearing capacity and global displacements values, and not according to the interstory lateral deformations. However, there was no possibility to correlate their reliability to resist earthquake actions with modern International documents (starting from ATC 40 (1996) - until the latest one from 2017, EC 8-part 3, FEMA 273, etc.), nor was it checked later. Recent earthquakes, including the Montenegrin (1979) earthquake, shortly before the 1981 Regulations, showed the vulnerability and even progressive collapse of reinforced concrete (RC) structures. In many countries, for more significant structures, an assessment of their condition from the aspect of vulnerability and/or robustness is performed. It is significant that many seismically resistant structures have shown less sensitivity to progressive collapse because their integrity is, to some extent, a barrier against the occurrence of progressive collapse. Such analyses precede the reinforcement detailing of existing structures to the calculated seismic action characterized, above all, by the intensity and return period. In this paper, a brief application of nonlinear modern methods of analysis and reliability assessment of these structures, with risk analysis according to the performance limit states of the building is performed. The robustness and seismic fragility of two models of an RC building with the same geometric characteristics were analysed, with one building designed according to European building design standards and the other according to Yugoslav regulations from 1981. The goal was to establish the difference in the performance of the two structures, because there is a large number of a reinforced concrete buildings designed by applying old codes in this region. The methodology of calculation and design of RC buildings, necessary for the mentioned analyses, is described in the paper. Numerical analyses were conducted on RC building designed according to Yugoslav standards from 1981 and according to the mentioned modern norms (Eurocode) with a comparison of the important indicators in the obtained results.
C3  - 1st Croatian Conference on Earthquake Engineering. 22-24 March 2021 Zagreb, Croatia
T1  - Robustness and fragility of the RC building designed according to YU-81 and European Standards
EP  - 1311
SP  - 1297
DO  - 10.5592/CO/1CroCEE.2021.191
ER  - 

@conference{
author = "Čokić, Miloš and Folić, Boris and Folić, Radomir",
year = "2021",
abstract = "In the countries of the former Yugoslavia, the first regulations for the design of seismically resistant structures date back to 1964, and the reason for their adoption was the Skopje earthquake in 1963. 
The next, much more advanced structural code dates from 1981 with a few additions. Many RC multi-storey buildings were designed and built according to the mentioned code for high-rise buildings from 1981, especially in larger cities. Some of the reasons were that they are mainly calculated according to their bearing capacity and global displacements values, and not according to the interstory lateral deformations. However, there was no possibility to correlate their reliability to resist earthquake actions with modern International documents (starting from ATC 40 (1996) - until the latest one from 2017, EC 8-part 3, FEMA 273, etc.), nor was it checked later. Recent earthquakes, including the Montenegrin (1979) earthquake, shortly before the 1981 Regulations, showed the vulnerability and even progressive collapse of reinforced concrete (RC) structures. In many countries, for more significant structures, an assessment of their condition from the aspect of vulnerability and/or robustness is performed. It is significant that many seismically resistant structures have shown less sensitivity to progressive collapse because their integrity is, to some extent, a barrier against the occurrence of progressive collapse. Such analyses precede the reinforcement detailing of existing structures to the calculated seismic action characterized, above all, by the intensity and return period. In this paper, a brief application of nonlinear modern methods of analysis and reliability assessment of these structures, with risk analysis according to the performance limit states of the building is performed. The robustness and seismic fragility of two models of an RC building with the same geometric characteristics were analysed, with one building designed according to European building design standards and the other according to Yugoslav regulations from 1981. The goal was to establish the difference in the performance of the two structures, because there is a large number of a reinforced concrete buildings designed by applying old codes in this region. The methodology of calculation and design of RC buildings, necessary for the mentioned analyses, is described in the paper. Numerical analyses were conducted on RC building designed according to Yugoslav standards from 1981 and according to the mentioned modern norms (Eurocode) with a comparison of the important indicators in the obtained results.",
journal = "1st Croatian Conference on Earthquake Engineering. 22-24 March 2021 Zagreb, Croatia",
title = "Robustness and fragility of the RC building designed according to YU-81 and European Standards",
pages = "1311-1297",
doi = "10.5592/CO/1CroCEE.2021.191"
}

Čokić, M., Folić, B.,& Folić, R.. (2021). Robustness and fragility of the RC building designed according to YU-81 and European Standards. in 1st Croatian Conference on Earthquake Engineering. 22-24 March 2021 Zagreb, Croatia, 1297-1311.
https://doi.org/10.5592/CO/1CroCEE.2021.191

Čokić M, Folić B, Folić R. Robustness and fragility of the RC building designed according to YU-81 and European Standards. in 1st Croatian Conference on Earthquake Engineering. 22-24 March 2021 Zagreb, Croatia. 2021;:1297-1311.
doi:10.5592/CO/1CroCEE.2021.191 .

Čokić, Miloš, Folić, Boris, Folić, Radomir, "Robustness and fragility of the RC building designed according to YU-81 and European Standards" in 1st Croatian Conference on Earthquake Engineering. 22-24 March 2021 Zagreb, Croatia (2021):1297-1311,
https://doi.org/10.5592/CO/1CroCEE.2021.191 . .

TY  - CONF
AU  - Čokić, Miloš
AU  - Folić, Radomir
AU  - Folić, Boris
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7411
AB  - A post-elastic behaviour of buildings with reinforced concrete (RC) walls is analysed, using
the method of nonlinear static analysis. Two models, both with different RC wall
reinforcement detailing, are used for the comparative analysis of the building behaviour.
Walls are modelled as column-rigid beam elements with fiber nonlinear hinges, but with
different distribution and quantities of the reinforcing steel in both model. The model with
RC walls that have boundary elements is chosen as a referent model for comparative
analysis. Based on the results of nonlinear analysis method, target displacement and inter-
story drift values, some conclusions and recommendations are given.
AB  - Analiziran je sistem post-elastičnog ponašanja zgrada sa armirano-betonskim (AB)
zidovima, primenom metode nelinearne statičke analize. Za uporednu analizu ponašanja
zgrade koriste se dva modela, oba sa različitim detaljima armiranja AB zidova. Zidovi su
modelirani kao sistemi stubova i krutih greda sa vlaknastim modelima plastičnih zglobova,
ali sa različitim rasporedom i količinama armature u oba modela. Kao referentni model za
komparativnu analizu, odabran je model sa AB zidovima koji imaju ivične elemente. Na
osnovu rezultata dobijenih primenom metode nelinearne analize, ciljnih i međuspratnih
pomeranja, date su odgovarajuće preporuke.
PB  - Union of Engineers and Technicians of Serbia
PB  - SGITS
C3  - Proceedings. International scientific conference. Earthquake engineering and geotechnical aspects of civil engineering. Editor: Prof. emeritus dr Radomir Folić. Vrnjačka Banja, 03. - 05. novembar 2021 [Elektronski izvor]
T1  - SEISMIC RESPONSE OF RC BUILDINGS WITH DIFFERENTLY REINFORCED SHEAR WALLS
T1  - SEIZMIČKI ODGOVOR AB ZGRADA SA RAZLIČITO ARMIRANIM ZIDOVIMA
EP  - 190
SP  - 175
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7411
ER  - 

@conference{
author = "Čokić, Miloš and Folić, Radomir and Folić, Boris",
year = "2021",
abstract = "A post-elastic behaviour of buildings with reinforced concrete (RC) walls is analysed, using
the method of nonlinear static analysis. Two models, both with different RC wall
reinforcement detailing, are used for the comparative analysis of the building behaviour.
Walls are modelled as column-rigid beam elements with fiber nonlinear hinges, but with
different distribution and quantities of the reinforcing steel in both model. The model with
RC walls that have boundary elements is chosen as a referent model for comparative
analysis. Based on the results of nonlinear analysis method, target displacement and inter-
story drift values, some conclusions and recommendations are given., Analiziran je sistem post-elastičnog ponašanja zgrada sa armirano-betonskim (AB)
zidovima, primenom metode nelinearne statičke analize. Za uporednu analizu ponašanja
zgrade koriste se dva modela, oba sa različitim detaljima armiranja AB zidova. Zidovi su
modelirani kao sistemi stubova i krutih greda sa vlaknastim modelima plastičnih zglobova,
ali sa različitim rasporedom i količinama armature u oba modela. Kao referentni model za
komparativnu analizu, odabran je model sa AB zidovima koji imaju ivične elemente. Na
osnovu rezultata dobijenih primenom metode nelinearne analize, ciljnih i međuspratnih
pomeranja, date su odgovarajuće preporuke.",
publisher = "Union of Engineers and Technicians of Serbia, SGITS",
journal = "Proceedings. International scientific conference. Earthquake engineering and geotechnical aspects of civil engineering. Editor: Prof. emeritus dr Radomir Folić. Vrnjačka Banja, 03. - 05. novembar 2021 [Elektronski izvor]",
title = "SEISMIC RESPONSE OF RC BUILDINGS WITH DIFFERENTLY REINFORCED SHEAR WALLS, SEIZMIČKI ODGOVOR AB ZGRADA SA RAZLIČITO ARMIRANIM ZIDOVIMA",
pages = "190-175",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7411"
}

Čokić, M., Folić, R.,& Folić, B.. (2021). SEISMIC RESPONSE OF RC BUILDINGS WITH DIFFERENTLY REINFORCED SHEAR WALLS. in Proceedings. International scientific conference. Earthquake engineering and geotechnical aspects of civil engineering. Editor: Prof. emeritus dr Radomir Folić. Vrnjačka Banja, 03. - 05. novembar 2021 [Elektronski izvor]
Union of Engineers and Technicians of Serbia., 175-190.
https://hdl.handle.net/21.15107/rcub_machinery_7411

Čokić M, Folić R, Folić B. SEISMIC RESPONSE OF RC BUILDINGS WITH DIFFERENTLY REINFORCED SHEAR WALLS. in Proceedings. International scientific conference. Earthquake engineering and geotechnical aspects of civil engineering. Editor: Prof. emeritus dr Radomir Folić. Vrnjačka Banja, 03. - 05. novembar 2021 [Elektronski izvor]. 2021;:175-190.
https://hdl.handle.net/21.15107/rcub_machinery_7411 .

Čokić, Miloš, Folić, Radomir, Folić, Boris, "SEISMIC RESPONSE OF RC BUILDINGS WITH DIFFERENTLY REINFORCED SHEAR WALLS" in Proceedings. International scientific conference. Earthquake engineering and geotechnical aspects of civil engineering. Editor: Prof. emeritus dr Radomir Folić. Vrnjačka Banja, 03. - 05. novembar 2021 [Elektronski izvor] (2021):175-190,
https://hdl.handle.net/21.15107/rcub_machinery_7411 .

TY  - CONF
AU  - Folić, Radomir
AU  - Folić, Boris
AU  - Čokić, Miloš
PY  - 2021
UR  - http://www.gf.uns.ac.rs/~zbornik/doc/NS2021.03.pdf
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7342
AB  - The paper presents the provisions of the Standards that regulate the methods
of the analysis and detailing of joints and connections of structural elements. Norms are
covered in ACI 318, Eurocode 2 and 8, Code New Zealand, fib Model Code 2010
(2013), and their bulletins. Analyses and shaping of connections according to the
mentioned norms and literature depending on the stress states to which the elements are
exposed are presented. The recommendations of individual international associations
were also analysed in PCI Design Handbook Precast and Prestressed concrete, ACI C
533 Guide Precast concrete, Guidelines for the use of Structural Precast Concrete (New
Zealand). For some connections (loops) and other analyses, based on recent studies of
their behaviour under load that simulate seismic actions, approximate analyses are also
presented.
AB  - У раду су приказане одредбе Норми којима се регулише начин анализе и
обликовања детаља спојева и веза конструкцијских елемената. Обухваћене су
норме ACI 318, Eurocode 2 i 8, Code New Zeland i fib Model Code 2010 (2013) и
њихови билтени. Преказане су анализе и обликовање веза према поменутим
нормама и литератури зависно од напонски стања којима су елементи изложени.
Анализиране су и препоруке појединих интернационалних удружења PCI Design
Handbook Precast and Prestressed concrete, ACI C 533 Guide Percast concrete,
Guidelines for the use of Structural Precast Concrete (New Zealand) и други. За неке
везе (петљама) и друге анализе засноване су на новијим истраживањима њиховог
понашања под оптерећењем које симулира сеизмичка дејства приказане су и
приближне анализе.
C3  - 8 th INTERNATIONAL CONFERENCE Contemporary achievements in civil engineering 22-23. April 2021. Subotica, SERBIA
T1  - Seismic analysis of joints and connections of precast concrete structures
T1  - СЕИЗМИЧКА АНАЛИЗА СПОЈЕВА И ВЕЗА У МОНТАЖНИМ БЕТОНСКИМ КОНСТРУКЦИЈАМА
EP  - 47
SP  - 29
DO  - 10.14415/konferencijaGFS2021.03
ER  - 

@conference{
author = "Folić, Radomir and Folić, Boris and Čokić, Miloš",
year = "2021",
abstract = "The paper presents the provisions of the Standards that regulate the methods
of the analysis and detailing of joints and connections of structural elements. Norms are
covered in ACI 318, Eurocode 2 and 8, Code New Zealand, fib Model Code 2010
(2013), and their bulletins. Analyses and shaping of connections according to the
mentioned norms and literature depending on the stress states to which the elements are
exposed are presented. The recommendations of individual international associations
were also analysed in PCI Design Handbook Precast and Prestressed concrete, ACI C
533 Guide Precast concrete, Guidelines for the use of Structural Precast Concrete (New
Zealand). For some connections (loops) and other analyses, based on recent studies of
their behaviour under load that simulate seismic actions, approximate analyses are also
presented., У раду су приказане одредбе Норми којима се регулише начин анализе и
обликовања детаља спојева и веза конструкцијских елемената. Обухваћене су
норме ACI 318, Eurocode 2 i 8, Code New Zeland i fib Model Code 2010 (2013) и
њихови билтени. Преказане су анализе и обликовање веза према поменутим
нормама и литератури зависно од напонски стања којима су елементи изложени.
Анализиране су и препоруке појединих интернационалних удружења PCI Design
Handbook Precast and Prestressed concrete, ACI C 533 Guide Percast concrete,
Guidelines for the use of Structural Precast Concrete (New Zealand) и други. За неке
везе (петљама) и друге анализе засноване су на новијим истраживањима њиховог
понашања под оптерећењем које симулира сеизмичка дејства приказане су и
приближне анализе.",
journal = "8 th INTERNATIONAL CONFERENCE Contemporary achievements in civil engineering 22-23. April 2021. Subotica, SERBIA",
title = "Seismic analysis of joints and connections of precast concrete structures, СЕИЗМИЧКА АНАЛИЗА СПОЈЕВА И ВЕЗА У МОНТАЖНИМ БЕТОНСКИМ КОНСТРУКЦИЈАМА",
pages = "47-29",
doi = "10.14415/konferencijaGFS2021.03"
}

Folić, R., Folić, B.,& Čokić, M.. (2021). Seismic analysis of joints and connections of precast concrete structures. in 8 th INTERNATIONAL CONFERENCE Contemporary achievements in civil engineering 22-23. April 2021. Subotica, SERBIA, 29-47.
https://doi.org/10.14415/konferencijaGFS2021.03

Folić R, Folić B, Čokić M. Seismic analysis of joints and connections of precast concrete structures. in 8 th INTERNATIONAL CONFERENCE Contemporary achievements in civil engineering 22-23. April 2021. Subotica, SERBIA. 2021;:29-47.
doi:10.14415/konferencijaGFS2021.03 .

Folić, Radomir, Folić, Boris, Čokić, Miloš, "Seismic analysis of joints and connections of precast concrete structures" in 8 th INTERNATIONAL CONFERENCE Contemporary achievements in civil engineering 22-23. April 2021. Subotica, SERBIA (2021):29-47,
https://doi.org/10.14415/konferencijaGFS2021.03 . .

TY  - CONF
AU  - Liolios, Angelos
AU  - Moropoulou, Antonia
AU  - Liolios, Konstantinos
AU  - Folić, Boris
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7341
AB  - Old existing industrial reinforced concrete (RC) structures are often subjected to
removal of structural elements due to degradation caused by environmental effects. So they are
in a risk of progressive collapse. In oder to prevent this risk, a strengthening by cable elements
(tension-ties) can be used. The probabilistic analysis of such RC structures under seismic
sequences is herein numerically investigated. The unilateral behavior of the cable-elements,
which can undertake tension stresses only, is strictly taken into account. Attention is given to
uncertainties concerning structural input parameters, common for such old RC structures
belonging to built Cultural Heritage. For their treatment, Monte Carlo techniques are applied.
The proposed methodology is explained in a numerical example.
AB  - Stare postojeće industrijske armiranobetonske (AB) konstrukcije često su podvrgnute
uklanjanju konstruktivnih elemenata zbog degradacije uzrokovane uticajima okoline, zbog čega
su u opasnosti od progresivnog kolapsa. Da bi se sprečio ovaj rizik, može se koristiti ojačanje
kablovskim elementima (zatezne zatege). Ovde je numerički istražena probabilistička analiza
takvih armiranobetonskih konstrukcija izloženim uticaju niza seizmičkih potresa. Strogo se
uzima u obzir jednostrano ponašanje kablovskih elemenata, koji mogu da podnesu samo
zatezna naprezanja. Pažnja je posvećena nejasnoćama u pogledu ulaznih parametara
konstrukcije, uobičajenih za tako stare AB konstrukcije koje pripadaju kulturnom nasleđu. Za
njihovo tretman primenjuju se Monte Karlo tehnike. Predložena metodologija je objašnjena na
numeričkom primeru.
PB  - Fakultet tehničkih nauka, Departman za građevinarstvo i geodeziju
C3  - 15th International Scientific Conference Planning, Design, Construction and Building Renewal [INDIS] elektronski optički disk
T1  - A stochastic approach for old RC structures strengthened by ties to prevent progressive collapse under seismic sequences
EP  - 126
SP  - 119
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7341
ER  - 

@conference{
author = "Liolios, Angelos and Moropoulou, Antonia and Liolios, Konstantinos and Folić, Boris",
year = "2021",
abstract = "Old existing industrial reinforced concrete (RC) structures are often subjected to
removal of structural elements due to degradation caused by environmental effects. So they are
in a risk of progressive collapse. In oder to prevent this risk, a strengthening by cable elements
(tension-ties) can be used. The probabilistic analysis of such RC structures under seismic
sequences is herein numerically investigated. The unilateral behavior of the cable-elements,
which can undertake tension stresses only, is strictly taken into account. Attention is given to
uncertainties concerning structural input parameters, common for such old RC structures
belonging to built Cultural Heritage. For their treatment, Monte Carlo techniques are applied.
The proposed methodology is explained in a numerical example., Stare postojeće industrijske armiranobetonske (AB) konstrukcije često su podvrgnute
uklanjanju konstruktivnih elemenata zbog degradacije uzrokovane uticajima okoline, zbog čega
su u opasnosti od progresivnog kolapsa. Da bi se sprečio ovaj rizik, može se koristiti ojačanje
kablovskim elementima (zatezne zatege). Ovde je numerički istražena probabilistička analiza
takvih armiranobetonskih konstrukcija izloženim uticaju niza seizmičkih potresa. Strogo se
uzima u obzir jednostrano ponašanje kablovskih elemenata, koji mogu da podnesu samo
zatezna naprezanja. Pažnja je posvećena nejasnoćama u pogledu ulaznih parametara
konstrukcije, uobičajenih za tako stare AB konstrukcije koje pripadaju kulturnom nasleđu. Za
njihovo tretman primenjuju se Monte Karlo tehnike. Predložena metodologija je objašnjena na
numeričkom primeru.",
publisher = "Fakultet tehničkih nauka, Departman za građevinarstvo i geodeziju",
journal = "15th International Scientific Conference Planning, Design, Construction and Building Renewal [INDIS] elektronski optički disk",
title = "A stochastic approach for old RC structures strengthened by ties to prevent progressive collapse under seismic sequences",
pages = "126-119",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7341"
}

Liolios, A., Moropoulou, A., Liolios, K.,& Folić, B.. (2021). A stochastic approach for old RC structures strengthened by ties to prevent progressive collapse under seismic sequences. in 15th International Scientific Conference Planning, Design, Construction and Building Renewal [INDIS] elektronski optički disk
Fakultet tehničkih nauka, Departman za građevinarstvo i geodeziju., 119-126.
https://hdl.handle.net/21.15107/rcub_machinery_7341

Liolios A, Moropoulou A, Liolios K, Folić B. A stochastic approach for old RC structures strengthened by ties to prevent progressive collapse under seismic sequences. in 15th International Scientific Conference Planning, Design, Construction and Building Renewal [INDIS] elektronski optički disk. 2021;:119-126.
https://hdl.handle.net/21.15107/rcub_machinery_7341 .

Liolios, Angelos, Moropoulou, Antonia, Liolios, Konstantinos, Folić, Boris, "A stochastic approach for old RC structures strengthened by ties to prevent progressive collapse under seismic sequences" in 15th International Scientific Conference Planning, Design, Construction and Building Renewal [INDIS] elektronski optički disk (2021):119-126,
https://hdl.handle.net/21.15107/rcub_machinery_7341 .

TY  - JOUR
AU  - Folić, Radomir
AU  - Brujić, Zoran
AU  - Folić, Boris
AU  - Čokić, Miloš
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6989
AB  - U ovom radu, analizirani su konstruktivni sistemi zgrada sa armirano-betonskim (AB) zi-
dovima sa fokusom na njihovo post-elastično ponašanje, primenom metoda nelinearne statičke
i dinamičke analize. Tri modela zgrada sa različitim detaljima armiranja AB zidova su ana-
lizirana i upotrebljena za uporednu analiza seizmičkog odgovora zgrade. Rezultati analize su
iskorišćeni za upoređenje odgovora zgrada, na seizmička dejstva, sa zidovima projektovanim
prema EC8 (koji sadrže ivične elemente) i zgrada sa ravnomerno raspoređenom armaturom u
poprečnom preseku AB zidova. Zidovi su modelirani kao sistemi stubova i krutih greda sa vlak-
nastim modelima plastičnih zglobova, ali sa različitim rasporedom i količinama armature u sva
tri modela. Kao referentni model za komparativnu analizu, odabran je model sa AB zidovima
koji imaju ivične elemente. Na osnovu rezultata dobijenih primenom metoda nelinearne analize,
date su odgovarajuće preporuke
AB  - In this paper, a wall structural system building (acc. to EC8), with reinforced concrete
(RC) walls is analysed. The focus is on analysing the system post-elastic behaviour, using the
nonlinear static and dynamic analysis methods. Three models (each with different RC wall rein-
forcement detailing) are used for the comparative analysis of the building behaviour. The results
of this analysis are used to compare the response of buildings with the walls designed according
to EC8 (with boundary elements) and buildings with uniformly distributed rebar in the RC wall
cross-section. Walls are modelled as column-rigid beam elements with fiber nonlinear hinges,
but with different distribution and quantities of the reinforcing steel in each model. The model
with RC walls that have “boundary” elements modelled as a part of the wall is chosen as a refer-
ent model for comparative analysis with the other two models. Based on the results of nonlinear
analysis methods some conclusions and recommendations are given.
PB  - Beograd : Savez inženjera i tehničara Srbije
T2  - IZGRADNJA
T1  - THE EFFECT OF REINFORCEMENT DETAILING IN RC WALLS ON THE BEHAVIOUR OF DCM BUILDINGS WITH WALL STRUCTURAL SYSTEM
T1  - UTICAJ METODE ARMIRANJA AB ZIDOVA NA PONAŠANJE ZGRADA SREDNJE DUKTILNOSTI SA ZIDNIM KONSTRUKTIVNIM SISTEMOM
EP  - 160
IS  - 75, 9-12
SP  - 143
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6989
ER  - 

@article{
author = "Folić, Radomir and Brujić, Zoran and Folić, Boris and Čokić, Miloš",
year = "2021",
abstract = "U ovom radu, analizirani su konstruktivni sistemi zgrada sa armirano-betonskim (AB) zi-
dovima sa fokusom na njihovo post-elastično ponašanje, primenom metoda nelinearne statičke
i dinamičke analize. Tri modela zgrada sa različitim detaljima armiranja AB zidova su ana-
lizirana i upotrebljena za uporednu analiza seizmičkog odgovora zgrade. Rezultati analize su
iskorišćeni za upoređenje odgovora zgrada, na seizmička dejstva, sa zidovima projektovanim
prema EC8 (koji sadrže ivične elemente) i zgrada sa ravnomerno raspoređenom armaturom u
poprečnom preseku AB zidova. Zidovi su modelirani kao sistemi stubova i krutih greda sa vlak-
nastim modelima plastičnih zglobova, ali sa različitim rasporedom i količinama armature u sva
tri modela. Kao referentni model za komparativnu analizu, odabran je model sa AB zidovima
koji imaju ivične elemente. Na osnovu rezultata dobijenih primenom metoda nelinearne analize,
date su odgovarajuće preporuke, In this paper, a wall structural system building (acc. to EC8), with reinforced concrete
(RC) walls is analysed. The focus is on analysing the system post-elastic behaviour, using the
nonlinear static and dynamic analysis methods. Three models (each with different RC wall rein-
forcement detailing) are used for the comparative analysis of the building behaviour. The results
of this analysis are used to compare the response of buildings with the walls designed according
to EC8 (with boundary elements) and buildings with uniformly distributed rebar in the RC wall
cross-section. Walls are modelled as column-rigid beam elements with fiber nonlinear hinges,
but with different distribution and quantities of the reinforcing steel in each model. The model
with RC walls that have “boundary” elements modelled as a part of the wall is chosen as a refer-
ent model for comparative analysis with the other two models. Based on the results of nonlinear
analysis methods some conclusions and recommendations are given.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "IZGRADNJA",
title = "THE EFFECT OF REINFORCEMENT DETAILING IN RC WALLS ON THE BEHAVIOUR OF DCM BUILDINGS WITH WALL STRUCTURAL SYSTEM, UTICAJ METODE ARMIRANJA AB ZIDOVA NA PONAŠANJE ZGRADA SREDNJE DUKTILNOSTI SA ZIDNIM KONSTRUKTIVNIM SISTEMOM",
pages = "160-143",
number = "75, 9-12",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6989"
}

Folić, R., Brujić, Z., Folić, B.,& Čokić, M.. (2021). THE EFFECT OF REINFORCEMENT DETAILING IN RC WALLS ON THE BEHAVIOUR OF DCM BUILDINGS WITH WALL STRUCTURAL SYSTEM. in IZGRADNJA
Beograd : Savez inženjera i tehničara Srbije.(75, 9-12), 143-160.
https://hdl.handle.net/21.15107/rcub_machinery_6989

Folić R, Brujić Z, Folić B, Čokić M. THE EFFECT OF REINFORCEMENT DETAILING IN RC WALLS ON THE BEHAVIOUR OF DCM BUILDINGS WITH WALL STRUCTURAL SYSTEM. in IZGRADNJA. 2021;(75, 9-12):143-160.
https://hdl.handle.net/21.15107/rcub_machinery_6989 .

Folić, Radomir, Brujić, Zoran, Folić, Boris, Čokić, Miloš, "THE EFFECT OF REINFORCEMENT DETAILING IN RC WALLS ON THE BEHAVIOUR OF DCM BUILDINGS WITH WALL STRUCTURAL SYSTEM" in IZGRADNJA, no. 75, 9-12 (2021):143-160,
https://hdl.handle.net/21.15107/rcub_machinery_6989 .

TY  - JOUR
AU  - Liolios, A.
AU  - Partov, D.
AU  - Liolios, K.
AU  - Folić, Boris
AU  - Skodras, G.
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6987
AB  - Existing old reinforced concrete (RC) buildings are sometimes subjected
to obligatory removal of some structural element‐members, e.g. columns,
and so to the risk of a progressive collapse. This happens due to various
reasons, which can concern changes of serviceability and requirements, or
environmental effects which cause strength degradation etc. In order to
avoid such a progressive collapse, a modification of the structural
response and a redistribution of internal actions can result to a
requirement for strengthening the remaining structure after the removal
of the degraded elements. The present study deals with such a case, which
concerns the computational analysis of framed RC structures under the
removal of some columns and the so‐induced requirement of a
strengthening by ties (tension only elements). The unilateral behaviour of
these cable‐ties, which can undertake only tension, is strictly considered,
and the response of the remaining historic structure strengthened by ties
is computed. Finally, in a practical case of a framed RC structure, the
effectiveness of the proposed methodology is shown.
PB  - University of Structural Engineering and Architecture (VSU) "Lyuben Karavelov"
T2  - XIX INTERNATIONAL SCIENTIFIC CONFERENCE ON CONSTRUCTION AND ARCHITECTURE VSU'2019 Abstracts, 17­-19 October 2019, Sofia, Bulgaria
T1  - Progressive Collapse of Existing RС Structures due to Environmental Effects: A Numerical Approach for Strengthening by Ties
EP  - 68
SP  - 68
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6987
ER  - 

@article{
author = "Liolios, A. and Partov, D. and Liolios, K. and Folić, Boris and Skodras, G.",
year = "2019",
abstract = "Existing old reinforced concrete (RC) buildings are sometimes subjected
to obligatory removal of some structural element‐members, e.g. columns,
and so to the risk of a progressive collapse. This happens due to various
reasons, which can concern changes of serviceability and requirements, or
environmental effects which cause strength degradation etc. In order to
avoid such a progressive collapse, a modification of the structural
response and a redistribution of internal actions can result to a
requirement for strengthening the remaining structure after the removal
of the degraded elements. The present study deals with such a case, which
concerns the computational analysis of framed RC structures under the
removal of some columns and the so‐induced requirement of a
strengthening by ties (tension only elements). The unilateral behaviour of
these cable‐ties, which can undertake only tension, is strictly considered,
and the response of the remaining historic structure strengthened by ties
is computed. Finally, in a practical case of a framed RC structure, the
effectiveness of the proposed methodology is shown.",
publisher = "University of Structural Engineering and Architecture (VSU) "Lyuben Karavelov"",
journal = "XIX INTERNATIONAL SCIENTIFIC CONFERENCE ON CONSTRUCTION AND ARCHITECTURE VSU'2019 Abstracts, 17­-19 October 2019, Sofia, Bulgaria",
title = "Progressive Collapse of Existing RС Structures due to Environmental Effects: A Numerical Approach for Strengthening by Ties",
pages = "68-68",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6987"
}

Liolios, A., Partov, D., Liolios, K., Folić, B.,& Skodras, G.. (2019). Progressive Collapse of Existing RС Structures due to Environmental Effects: A Numerical Approach for Strengthening by Ties. in XIX INTERNATIONAL SCIENTIFIC CONFERENCE ON CONSTRUCTION AND ARCHITECTURE VSU'2019 Abstracts, 17­-19 October 2019, Sofia, Bulgaria
University of Structural Engineering and Architecture (VSU) "Lyuben Karavelov"., 68-68.
https://hdl.handle.net/21.15107/rcub_machinery_6987

Liolios A, Partov D, Liolios K, Folić B, Skodras G. Progressive Collapse of Existing RС Structures due to Environmental Effects: A Numerical Approach for Strengthening by Ties. in XIX INTERNATIONAL SCIENTIFIC CONFERENCE ON CONSTRUCTION AND ARCHITECTURE VSU'2019 Abstracts, 17­-19 October 2019, Sofia, Bulgaria. 2019;:68-68.
https://hdl.handle.net/21.15107/rcub_machinery_6987 .

Liolios, A., Partov, D., Liolios, K., Folić, Boris, Skodras, G., "Progressive Collapse of Existing RС Structures due to Environmental Effects: A Numerical Approach for Strengthening by Ties" in XIX INTERNATIONAL SCIENTIFIC CONFERENCE ON CONSTRUCTION AND ARCHITECTURE VSU'2019 Abstracts, 17­-19 October 2019, Sofia, Bulgaria (2019):68-68,
https://hdl.handle.net/21.15107/rcub_machinery_6987 .

TY  - CONF
AU  - Folić, R.
AU  - Folić, Boris
AU  - Liolios, A.
AU  - Ćosić, M.
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6992
AB  - U radu su prikazani neki elementi analize šipova. Detaljnije je prikazana seizmička analiza sistema konstrukcija-šipovi-tlo, jednog 2D AB rama. Prikazana je analiza pojedinih elemenata sistema, neka moguća oštećenja za dva akcelerograma Vrančee, VR77NS i VRfoc86NS. Uticaj spektra odgovora dat je za VR77NS, jer konstrukcija tada ulazi u rezonantno područje i značajno se povećavaju oštećenja. Dati su dijagrami pomeranja, krajeva stubova tokom zemljotresa i oštećenja modela kao stanja plastičnih zglobova na kraju akcelerograma. Ukazano je na neophodnost uvođenja dinamičke interakcija sistema konstrukcija u koje je potrebno uključiti na samo šipove, već i tlo, jer to sada omogućava postignuti naučno tehnološki razvoj čovečanstva.
AB  - The paper presents a seismic analysis of the structure-pile-soil system, of a 2D RC frame. The analysis of individual system elements and some potential damage on two Vrancea accelerograms, VR77NS and VRfoc86NS are presented. The impact of the response spectra is provided for VR77NS, because the structure enters the resonant area and the damage increase considerably. Local drift diagrams during the earthquake, and the model damage featured as plastic hinges condition at the end of accelerograms are provided. It is indicated that it is necessary to introduce a dynamic interaction of the structural system, which includes not only the piles, but soil as well, because it became possible at the present level of scientific and technological progress of the human kind.
PB  - Savez građevinskih inženjera Srbije
PB  - Association of civil engineers of Serbia (ACES)
C3  - Zbornik radova 8th Conference of Association of civil engineers of Serbia (ACES) Geotechnics in civil engineering, Vrnjačka Banja, 13. - 15. Nov, 2019
T1  - Some aspects of the analysis of pile foundations behaviour under seismic action
EP  - 356
SP  - 343
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6992
ER  - 

@conference{
author = "Folić, R. and Folić, Boris and Liolios, A. and Ćosić, M.",
year = "2019",
abstract = "U radu su prikazani neki elementi analize šipova. Detaljnije je prikazana seizmička analiza sistema konstrukcija-šipovi-tlo, jednog 2D AB rama. Prikazana je analiza pojedinih elemenata sistema, neka moguća oštećenja za dva akcelerograma Vrančee, VR77NS i VRfoc86NS. Uticaj spektra odgovora dat je za VR77NS, jer konstrukcija tada ulazi u rezonantno područje i značajno se povećavaju oštećenja. Dati su dijagrami pomeranja, krajeva stubova tokom zemljotresa i oštećenja modela kao stanja plastičnih zglobova na kraju akcelerograma. Ukazano je na neophodnost uvođenja dinamičke interakcija sistema konstrukcija u koje je potrebno uključiti na samo šipove, već i tlo, jer to sada omogućava postignuti naučno tehnološki razvoj čovečanstva., The paper presents a seismic analysis of the structure-pile-soil system, of a 2D RC frame. The analysis of individual system elements and some potential damage on two Vrancea accelerograms, VR77NS and VRfoc86NS are presented. The impact of the response spectra is provided for VR77NS, because the structure enters the resonant area and the damage increase considerably. Local drift diagrams during the earthquake, and the model damage featured as plastic hinges condition at the end of accelerograms are provided. It is indicated that it is necessary to introduce a dynamic interaction of the structural system, which includes not only the piles, but soil as well, because it became possible at the present level of scientific and technological progress of the human kind.",
publisher = "Savez građevinskih inženjera Srbije, Association of civil engineers of Serbia (ACES)",
journal = "Zbornik radova 8th Conference of Association of civil engineers of Serbia (ACES) Geotechnics in civil engineering, Vrnjačka Banja, 13. - 15. Nov, 2019",
title = "Some aspects of the analysis of pile foundations behaviour under seismic action",
pages = "356-343",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6992"
}

Folić, R., Folić, B., Liolios, A.,& Ćosić, M.. (2019). Some aspects of the analysis of pile foundations behaviour under seismic action. in Zbornik radova 8th Conference of Association of civil engineers of Serbia (ACES) Geotechnics in civil engineering, Vrnjačka Banja, 13. - 15. Nov, 2019
Savez građevinskih inženjera Srbije., 343-356.
https://hdl.handle.net/21.15107/rcub_machinery_6992

Folić R, Folić B, Liolios A, Ćosić M. Some aspects of the analysis of pile foundations behaviour under seismic action. in Zbornik radova 8th Conference of Association of civil engineers of Serbia (ACES) Geotechnics in civil engineering, Vrnjačka Banja, 13. - 15. Nov, 2019. 2019;:343-356.
https://hdl.handle.net/21.15107/rcub_machinery_6992 .

Folić, R., Folić, Boris, Liolios, A., Ćosić, M., "Some aspects of the analysis of pile foundations behaviour under seismic action" in Zbornik radova 8th Conference of Association of civil engineers of Serbia (ACES) Geotechnics in civil engineering, Vrnjačka Banja, 13. - 15. Nov, 2019 (2019):343-356,
https://hdl.handle.net/21.15107/rcub_machinery_6992 .

TY  - CONF
AU  - Folić, Boris
AU  - Liolios, K.
AU  - Liolios, Angelos
AU  - Žugić, Željko
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6990
AB  - This paper presented the research of seismic energy dissipation in soil on 2D AB façade
frame eight floors high founded on bored RC piles. Soil-pile dynamical interaction, i.e. non-
linear soil behavior is modeled by horizontal p-y curves for sand, using multiplastic link
elements. The soil around the pile is represented with horizontal p-y curves, on which the
seismic energy dissipation is determined, during the first shock and aftershocks of an
earthquake. For the El Centro accelerogram, using the time analysis procedure (TH), the
energy dissipation in soil during the first shock which had PGA of 0,30g and during the
aftershock, scaled at 0,21g.
AB  - У овом раду приказано је испитивање дисипације сеизимичке енергије у тлу на 2Д АБ фасадном осмоетажном раму фундираном на бушеним АБ шиповима. Динамичка интеракција тло-шип, као нелинеарно понашање тла је моделовано хоризонталним p-y кривама за песак, применом multiplastic link елемената. Тло око шипа је представљено хоризонталним p-y кривама, на којима је и одређена дисипација сеизмичке енергије, током главног и накнадног удара земљотреса. За акцелерограм El Centro поступком временске анализе (TH) разматрана је дисипација енергије у тлу, током главног удара земљотреса PGA od 0,30г и накнадог удара, који је скалиран на 0,21g.
AB  - Дати су одговрајући дијаграми дисипације тла по дубини тла, односно по p-y кривама на крају земљотреса као екстремне вредности, а за дијаграме померања и сила промена током времена TH, за први и други удар земљотреса. Анализирана је и промена својствених тонова.
PB  - Savez građevinskih inženjera Srbije
C3  - Zbornik 11 međunarodni stručni skup Ocena stanja, održavanje i sanacija građevinskih objekata i naselja, Zlatibor, 19. - 21. Jun, 2019
T1  - Dissipation of seismic energy in soil during the first shock and aftershocks on RC frame founded on piles
EP  - 398
SP  - 387
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6990
ER  - 

@conference{
author = "Folić, Boris and Liolios, K. and Liolios, Angelos and Žugić, Željko",
year = "2019",
abstract = "This paper presented the research of seismic energy dissipation in soil on 2D AB façade
frame eight floors high founded on bored RC piles. Soil-pile dynamical interaction, i.e. non-
linear soil behavior is modeled by horizontal p-y curves for sand, using multiplastic link
elements. The soil around the pile is represented with horizontal p-y curves, on which the
seismic energy dissipation is determined, during the first shock and aftershocks of an
earthquake. For the El Centro accelerogram, using the time analysis procedure (TH), the
energy dissipation in soil during the first shock which had PGA of 0,30g and during the
aftershock, scaled at 0,21g., У овом раду приказано је испитивање дисипације сеизимичке енергије у тлу на 2Д АБ фасадном осмоетажном раму фундираном на бушеним АБ шиповима. Динамичка интеракција тло-шип, као нелинеарно понашање тла је моделовано хоризонталним p-y кривама за песак, применом multiplastic link елемената. Тло око шипа је представљено хоризонталним p-y кривама, на којима је и одређена дисипација сеизмичке енергије, током главног и накнадног удара земљотреса. За акцелерограм El Centro поступком временске анализе (TH) разматрана је дисипација енергије у тлу, током главног удара земљотреса PGA od 0,30г и накнадог удара, који је скалиран на 0,21g., Дати су одговрајући дијаграми дисипације тла по дубини тла, односно по p-y кривама на крају земљотреса као екстремне вредности, а за дијаграме померања и сила промена током времена TH, за први и други удар земљотреса. Анализирана је и промена својствених тонова.",
publisher = "Savez građevinskih inženjera Srbije",
journal = "Zbornik 11 međunarodni stručni skup Ocena stanja, održavanje i sanacija građevinskih objekata i naselja, Zlatibor, 19. - 21. Jun, 2019",
title = "Dissipation of seismic energy in soil during the first shock and aftershocks on RC frame founded on piles",
pages = "398-387",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6990"
}

Folić, B., Liolios, K., Liolios, A.,& Žugić, Ž.. (2019). Dissipation of seismic energy in soil during the first shock and aftershocks on RC frame founded on piles. in Zbornik 11 međunarodni stručni skup Ocena stanja, održavanje i sanacija građevinskih objekata i naselja, Zlatibor, 19. - 21. Jun, 2019
Savez građevinskih inženjera Srbije., 387-398.
https://hdl.handle.net/21.15107/rcub_machinery_6990

Folić B, Liolios K, Liolios A, Žugić Ž. Dissipation of seismic energy in soil during the first shock and aftershocks on RC frame founded on piles. in Zbornik 11 međunarodni stručni skup Ocena stanja, održavanje i sanacija građevinskih objekata i naselja, Zlatibor, 19. - 21. Jun, 2019. 2019;:387-398.
https://hdl.handle.net/21.15107/rcub_machinery_6990 .

Folić, Boris, Liolios, K., Liolios, Angelos, Žugić, Željko, "Dissipation of seismic energy in soil during the first shock and aftershocks on RC frame founded on piles" in Zbornik 11 međunarodni stručni skup Ocena stanja, održavanje i sanacija građevinskih objekata i naselja, Zlatibor, 19. - 21. Jun, 2019 (2019):387-398,
https://hdl.handle.net/21.15107/rcub_machinery_6990 .

TY  - CONF
AU  - Folić, Boris
AU  - Ćosić, M.
AU  - Brčić, S.
AU  - Čokić, M.
AU  - Sedmak, S.
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6991
AB  - U ovom radu prikazan je način modelovanja drugog udara (zemljotresa), pojave čiji je
značaj zapažen tokom druge polovine 20 veka. Navedeni su konstruktivni sistemi kod kojih
je bitno razmatranje drugog udara. Detaljnije je prikazan model skeletne AB konstrukcije,
odnosno 2D AB fasadnog okvira fundiranog na bušenim AB šipovima, prečnika 60cm.
Dinamička interakcija tlo-šip, odnosno nelinearno ponašanje tla je modelovano
horizontalnim p-y krivama za pesak, primenom multiplastic link elemenata. Za
akcelerogram El Centro tokom vremenske analize (TH) razmatrani su: globalno pomeranje,
(lokalni) drift i stanje plastičnih zglobova.
AB  - This paper presents the manner of modeling the aftershock (in an earthquake), the
phenomenon whose significance has been noted in the second half of the 20th century. Itlists the constructional systems in which the consideration of the aftershock is important. It
shows in more detail the model of the skeletal RC construction, i.e. the 2D RC facade frame
constructed on the 60cm-diameter drilled RC piles. The dynamic interaction soil-pile, i.e.
the non-linear behaviour of the soil is modelled with the horizontal p-y curves for sand,
applying multiplastic link elements. For the accelerogram El Centro during time history
(TH) the global and (local) drift, the condition of plastic hinges were considered.
PB  - Savez građevinskih inženjera Srbije
C3  - Ocena stanja, održavanje i sanacija građevinskih objekata i naselja, Zlatibor, 19. - 21. Jun
T1  - The effect of aftershock on 2D RC frame founded on piles with P-Y curves
T1  - EFEKAT NAKNADNIH UDARA NA 2D AB RAMU FUNDIRANOM NA ŠIPOVIMA PREKO P-Y KRIVIH
EP  - 386
SP  - 375
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6991
ER  - 

@conference{
author = "Folić, Boris and Ćosić, M. and Brčić, S. and Čokić, M. and Sedmak, S.",
year = "2019",
abstract = "U ovom radu prikazan je način modelovanja drugog udara (zemljotresa), pojave čiji je
značaj zapažen tokom druge polovine 20 veka. Navedeni su konstruktivni sistemi kod kojih
je bitno razmatranje drugog udara. Detaljnije je prikazan model skeletne AB konstrukcije,
odnosno 2D AB fasadnog okvira fundiranog na bušenim AB šipovima, prečnika 60cm.
Dinamička interakcija tlo-šip, odnosno nelinearno ponašanje tla je modelovano
horizontalnim p-y krivama za pesak, primenom multiplastic link elemenata. Za
akcelerogram El Centro tokom vremenske analize (TH) razmatrani su: globalno pomeranje,
(lokalni) drift i stanje plastičnih zglobova., This paper presents the manner of modeling the aftershock (in an earthquake), the
phenomenon whose significance has been noted in the second half of the 20th century. Itlists the constructional systems in which the consideration of the aftershock is important. It
shows in more detail the model of the skeletal RC construction, i.e. the 2D RC facade frame
constructed on the 60cm-diameter drilled RC piles. The dynamic interaction soil-pile, i.e.
the non-linear behaviour of the soil is modelled with the horizontal p-y curves for sand,
applying multiplastic link elements. For the accelerogram El Centro during time history
(TH) the global and (local) drift, the condition of plastic hinges were considered.",
publisher = "Savez građevinskih inženjera Srbije",
journal = "Ocena stanja, održavanje i sanacija građevinskih objekata i naselja, Zlatibor, 19. - 21. Jun",
title = "The effect of aftershock on 2D RC frame founded on piles with P-Y curves, EFEKAT NAKNADNIH UDARA NA 2D AB RAMU FUNDIRANOM NA ŠIPOVIMA PREKO P-Y KRIVIH",
pages = "386-375",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6991"
}

Folić, B., Ćosić, M., Brčić, S., Čokić, M.,& Sedmak, S.. (2019). The effect of aftershock on 2D RC frame founded on piles with P-Y curves. in Ocena stanja, održavanje i sanacija građevinskih objekata i naselja, Zlatibor, 19. - 21. Jun
Savez građevinskih inženjera Srbije., 375-386.
https://hdl.handle.net/21.15107/rcub_machinery_6991

Folić B, Ćosić M, Brčić S, Čokić M, Sedmak S. The effect of aftershock on 2D RC frame founded on piles with P-Y curves. in Ocena stanja, održavanje i sanacija građevinskih objekata i naselja, Zlatibor, 19. - 21. Jun. 2019;:375-386.
https://hdl.handle.net/21.15107/rcub_machinery_6991 .

Folić, Boris, Ćosić, M., Brčić, S., Čokić, M., Sedmak, S., "The effect of aftershock on 2D RC frame founded on piles with P-Y curves" in Ocena stanja, održavanje i sanacija građevinskih objekata i naselja, Zlatibor, 19. - 21. Jun (2019):375-386,
https://hdl.handle.net/21.15107/rcub_machinery_6991 .