地铁大跨度群洞隧道抗震设计分析

Seismic Design Analysis of Large-Span Subway Tunnel with Group Tunnels

结合青岛地铁某站的实际情况,应用反应位移法和时程分析法,对地铁大跨度群洞隧道的抗震设计进行了讨论。结果显示,2种方法在地铁隧道抗震设计中都有良好的适用性,能够很好地满足GB50909—2014《城市轨道交通结构抗震设计规范》的相关要求,可以相互参考验证,进一步提升隧道抗震设计效果。

Combined with the actual situation of a subway station in Qingdao,this paper discusses the seismic design of large-span group tunnel by using the response displacement method and time history analysis method.The results show that the two methods have good applicability in the seismic design of subway tunnel,which can well meet the relevant requirements of Code for Seismic Design of Urban Rail Transit Structures(GB 50909-2014),and can be verified by mutual reference,so as to further improve the effect of tunnel seismic design.