桥面设缝对中承式三跨连拱桥动力性能影响分析

Influence of dynamic performance of three-span half-through arch bridge with the different position of expansion joint

针对中承式拱桥桥面系设缝位置进行了动力性能方面的分析,从动力特性、地震作用构件内力等方面进行对比,根据理论分析结果给出了较优的桥面系设缝位置,为中承式拱桥设计提供参考。

This paper mainly discuses the influence of dynamic performance of half-through arch bridge with the different position of expansion joint. A better way to place the expansion joint has been given according to the dynamic performance and the inner force of bridge component. The results provides the information for the designing of the half-through arch bridge.