Solution for consolidation and retrofitting a historical steel bridge
Апстракт
Sustainable development is a fundamental goal of the European Union and seeks to meet the needs of the present, without compromising the future. The rehabilitation of historic steel constructions and old steel bridges in service, is part of the maintenance and conservation of existing heritage, thus considering a sustainable development concept, while constituting an act of culture. In present time, in Romania there are a relatively small number of steel bridges older than 100 years, especially in Transylvania region; they can be considered "witnesses of the past". Two important aspects are highlighted: consolidation costs are lower than for a new structure and the retrofitted bridge can receive a new, modern functional role that fits functionally into the landscape.
The paper is presenting a study case for an existing steel bridge build in the beginning of twentieth century (around year 1925). There are presented solution for consolidation of the bridge and retrofitting, taken into a...ccount fatigue design and structural integrity assessment. Critical flaws values were determined for each case type using the failure assessment diagrams. These values
are used as limit values for fatigue analysis based on fracture mechanics principles, to determine the number of cycles for a crack.
to extend from initial to critical dimension, i.e. failure. For the assessment was used the code cyclic loading as a block independent
iterative solver – applying the specified stress ranges sequentially line by line, repeating the entire cyclic loading - entire group of
cycles for a number of blocks (one block representing all the applied cycles of stress ranges).
Кључне речи:
Structural integrity / Steel structures / Hystorical steel bridgesИзвор:
Procedia Structural Integrity, 2022, 37, 771-778Колекције
Институција/група
Inovacioni centarTY - JOUR AU - Radu, Dorin AU - Bancila, Radu AU - Boldus, Dorel AU - Sedmak, Simon AU - Aranđelović, Mihajlo PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/7115 AB - Sustainable development is a fundamental goal of the European Union and seeks to meet the needs of the present, without compromising the future. The rehabilitation of historic steel constructions and old steel bridges in service, is part of the maintenance and conservation of existing heritage, thus considering a sustainable development concept, while constituting an act of culture. In present time, in Romania there are a relatively small number of steel bridges older than 100 years, especially in Transylvania region; they can be considered "witnesses of the past". Two important aspects are highlighted: consolidation costs are lower than for a new structure and the retrofitted bridge can receive a new, modern functional role that fits functionally into the landscape. The paper is presenting a study case for an existing steel bridge build in the beginning of twentieth century (around year 1925). There are presented solution for consolidation of the bridge and retrofitting, taken into account fatigue design and structural integrity assessment. Critical flaws values were determined for each case type using the failure assessment diagrams. These values are used as limit values for fatigue analysis based on fracture mechanics principles, to determine the number of cycles for a crack. to extend from initial to critical dimension, i.e. failure. For the assessment was used the code cyclic loading as a block independent iterative solver – applying the specified stress ranges sequentially line by line, repeating the entire cyclic loading - entire group of cycles for a number of blocks (one block representing all the applied cycles of stress ranges). T2 - Procedia Structural Integrity T1 - Solution for consolidation and retrofitting a historical steel bridge EP - 778 SP - 771 VL - 37 DO - 10.1016/j.prostr.2022.02.008 ER -
@article{ author = "Radu, Dorin and Bancila, Radu and Boldus, Dorel and Sedmak, Simon and Aranđelović, Mihajlo", year = "2022", abstract = "Sustainable development is a fundamental goal of the European Union and seeks to meet the needs of the present, without compromising the future. The rehabilitation of historic steel constructions and old steel bridges in service, is part of the maintenance and conservation of existing heritage, thus considering a sustainable development concept, while constituting an act of culture. In present time, in Romania there are a relatively small number of steel bridges older than 100 years, especially in Transylvania region; they can be considered "witnesses of the past". Two important aspects are highlighted: consolidation costs are lower than for a new structure and the retrofitted bridge can receive a new, modern functional role that fits functionally into the landscape. The paper is presenting a study case for an existing steel bridge build in the beginning of twentieth century (around year 1925). There are presented solution for consolidation of the bridge and retrofitting, taken into account fatigue design and structural integrity assessment. Critical flaws values were determined for each case type using the failure assessment diagrams. These values are used as limit values for fatigue analysis based on fracture mechanics principles, to determine the number of cycles for a crack. to extend from initial to critical dimension, i.e. failure. For the assessment was used the code cyclic loading as a block independent iterative solver – applying the specified stress ranges sequentially line by line, repeating the entire cyclic loading - entire group of cycles for a number of blocks (one block representing all the applied cycles of stress ranges).", journal = "Procedia Structural Integrity", title = "Solution for consolidation and retrofitting a historical steel bridge", pages = "778-771", volume = "37", doi = "10.1016/j.prostr.2022.02.008" }
Radu, D., Bancila, R., Boldus, D., Sedmak, S.,& Aranđelović, M.. (2022). Solution for consolidation and retrofitting a historical steel bridge. in Procedia Structural Integrity, 37, 771-778. https://doi.org/10.1016/j.prostr.2022.02.008
Radu D, Bancila R, Boldus D, Sedmak S, Aranđelović M. Solution for consolidation and retrofitting a historical steel bridge. in Procedia Structural Integrity. 2022;37:771-778. doi:10.1016/j.prostr.2022.02.008 .
Radu, Dorin, Bancila, Radu, Boldus, Dorel, Sedmak, Simon, Aranđelović, Mihajlo, "Solution for consolidation and retrofitting a historical steel bridge" in Procedia Structural Integrity, 37 (2022):771-778, https://doi.org/10.1016/j.prostr.2022.02.008 . .