Seizmička analiza betonskih konstrukcija fundiranih na šipovima

Abstract

U ovom radu analizirani su uticaju interakcije konstrukcija-temelj- tlo tokom seizmičkih dejstava. Primenjene su nelinearne analize vremenske istorije (TH) i pušover metoda. Analizirani su modeli grednih mostova, na karkaterističnim lokacijama i sa opterećenjima i materijalima prema BAB'87. Interakcija je tretirana preko elastičnih opruga i kao nelinearna preko link elemenata p-y krivama. Krive su modelovane višelinijskim Takeda histerezisnim modelom. Proučeno je stanje konstrukcija u toku i nakon zemljotresa, uključivo i drugi udar zemljotresa. U manjem obimu su anlizirane konstrukcije zgrada prema EC2 i EC8.

The thesis studies the effects of the structure-foundation- soil interaction during seismic action using non-linear analysis methods Time History and PushOver. Analysis is made of beam bridges, in their typical locations and with loads and construction materials based on BAB’87/-Yu Code. The interaction is treated as linear using elastic spring model, and non-linear as link element on p-y curves which are modeled using the multi-linear Takeda hystheresis model. Studies are made on the performance of the constructions during and after an earthqake including aftershocks. The work, to a lesser extent, also includes similar analyses and studies for buildings, based on EC2 and EC8 codes.