明挖地铁车站抗震设计内力分析方法比较

Comparative Analysis of Internal Force on Seismic Design for Metro Stations Constructed by Opencut Method

目前对地下结构的地震反应和抗震设计越来越受到重视。地铁车站在地震作用下的安全性至关重要。首先采用地铁车站常用的抗震设计方法——地震系数法和反应位移法对一个地铁车站实例进行了抗震计算,然后采用ANSYS软件对该车站进行了时程分析。比较了3种计算方法得到的内力结果,并分析了其在配筋中起到的作用。

At present, more and more importance is atta- ched to the seismic response of underground structures and seismic design, because the vital principle is to ensure the safety of subway station in case of earthquake. In this article, the commonly used seismic design for subway station, including the seismic coefficient method and response displacement method is employed for a subway station seismic calculation, then the station is calculated by ANSYS soft-ware with the time history analysis method. Thriough comparing three calculation methods, the internal force result is obtained and its role played in reinforcement is analyzed.