地震学报（英文版）2008，Vol.21Issue(3)：311-318,8.
Topographic effects on seismic response of long-span rigid-frame bridge under SV seismic wave
Topographic effects on seismic response of long-span rigid-frame bridge under SV seismic wave
摘要
Abstract
Seismic ground motions of two neighboring mountains and the free surface between them are calculated under the SV seismic waves with three different incident angles. The results are then taken as the inputs of multi-point seismic excitations for the foundation of a long-span bridge built over the valley in the analysis considering the inte-grated influence of traveling wave and topography. On the basis of a dynamic analytical method, a finite element model is created for the seismic responses of a four-span rigid-frame bridge of 440 m. The pier-top displacement and the pier-bottom internal force of the bridge are calculated. Then the results are compared with those considering traveling-wave effect only. The conclusions can serve as a seismic design reference for the structures located on the complex mountain topography.关键词
traveling-wave effect/ topographic effect/ multi-point excitation/ rigid-frame bridge/ seismic responseKey words
traveling-wave effect/ topographic effect/ multi-point excitation/ rigid-frame bridge/ seismic response分类
天文与地球科学引用本文复制引用
WANG Lei,ZHAO Cheng-gang,QU Tie-jun..Topographic effects on seismic response of long-span rigid-frame bridge under SV seismic wave[J].地震学报（英文版）,2008,21(3):311-318,8.基金项目
Key Project of Scientific and Technological Development Planning of Beijing Education Commission(kz200710009005) and National Natural Science Foundation of China (50678001). （kz200710009005）
