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Study on Seismic Response of Cable-Stayed Railway Bridge

Yan Guiping;Xia He;Chen Yingjun(Department of Civil Engineering,Northern Jiaotong University,Beijing 100044)  
In this article,the earthquake response features of cable-stayed railway bridge are investigated through inputing different earthquake excitings to typical bridge and varying the vehicle and structural parameters.The study results show that the main factors affecting the seismic response characteristics of bridge are the dynamic properties of vehicles and bridge,as well as the input excitings.By the comparison analysis of various conditions,the effect mechanism of train velocity,lateral stiffness of bridge span,stiffness of sub-structure,and the input excitings is discussed and summarized.
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