斜交简支板桥地震响应分析

Response Analysis on Seismic Response of Skew Simply Supported Slab Bridge

我国公路在役的桥梁以简支类型居多,如何使此类型桥梁在地震作用时保证大震不倒,维持生命线的畅通,非常必要。文章结合历次地震作用下简支板桥的震害特征,利用Midas/civil软件,对汶川地区震后重建的某斜交简支板桥进行了数值模拟,得出该桥的地震响应,找到了结构不利受力状态。

Simply supported slab bridges are used extensively in our country.How to make them stand firmly when they encounter a great earthquake is necessary.Firstly,there was a seismic hazard feature conclusion of simply supported slab bridges in the text.With Midas/civil,it simulated one simply supported skew slab bridge in Sichuan province An town,and got the seismic response and structure＇s weak link of the bridge,to try to make seismic fortification.