06-13-2016, 06:20 AM
Influence of spatial variability of ground motion on seismic response of bridges
- Author(s): Marta Šavor Novak, Damir Lazarević, Josip Atalić
- Published By: GRAĐEVINAR
- Published Year: 10/2015
- DOI: 10.14256/JCE.1303.2015
- Size: 708 KB
- Quality: Unspecified
- Abstract: An approach to seismic analysis of bridges under spatially variable ground motions is
presented. The phenomenon of spatial variability of earthquakes, its effects on bridge
response, and differences with respect to simultaneous excitation of supports, are
explained. The model of such excitation is described in detail, and procedures for generation
of spatially variable ground motions are outlined. Numerical analysis methods, efficient
for solving this problem, are also presented. The described methodology is applied in the
seismic analysis of an arch bridge. The analysis results show that the spatial variability of
ground motions has a detrimental effect on most of the analysed bridge response values.
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