Građevinar, Vol. 75 No. 10., 2023.
Professional paper
https://doi.org/10.14256/JCE.2256.2017
Influence of earthquake angle on seismic performance of concrete highway bridges
Ahmet Can Altunışık
Ebru Kalkan Okur
Abstract
This study aims to evaluate the effect of earthquake angle on the seismic performance of a concrete highway bridge. As a numerical example, a twin prestressed concrete box-girder highway bridge was analysed using finite element methods. The bridge was subjected to the 1992 Erzincan earthquake ground accelerations in 19 directions with values ranging from 0° to 90° in 5-degree increments. To evaluate the effects of different earthquake angles on seismic performance, variations in the maximum displacements, internal forces and principal stresses on the bridge deck, columns, isolator and foundation were studied . The results changed considerably for different earthquake angles. Variations in the displacement, internal forces and principal stresses occurred at different incidence angles. In other words, there is no unique angle of incidence for each structure.
Keywords
concrete highway bridge; earthquake angle influence; finite element method; seismic performance
Hrčak ID:
310223
URI
Publication date:
26.11.2023.
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