Analysis of Dynamic Property and Seismic Response on Leaning Arch Bridge

For leaning arch bridge, it consists of four arch ribs, whose dynamic property and seismic response are different from common arch bridge. In order to control earthquake damage, guarantee the life and economic loss to be the least, the time history method and response spectrum method are both used to analyze the seismic response with finite element method. According to field type and fundamental period of leaning arch bridge, the standard bridge spectrum is divided into ten parts, each part having one second period and selected earthquake wave also producing spectrum, which are the most similar to the standard spectrum in fundamental period part to be utilized as the time history load. From the results calculated by two methods, they are usually proximal and verifying each other. At the same time, seismic wave also meets the time of duration and correlation demand. So choosing wave method can be applied and promoted to reduce blindness and save time.