地铁单跨框架式高架车站结构抗震性能分析

Analysis on the Seismic Behavior of Elevated Metro Station with Single Span Frame

现行规范中没有针对地铁高架车站工程提出具体的抗震要求,《城市轨道交通结构抗震设计规范》[1]目前还只是征求意见稿。但国家主管部门对市政工程的抗震能力有较高的要求,因此对地铁高架车站的抗震性能分析和研究显得十分必要。结合南京宁天城际一期工程典型高架侧式车站进行了详细的抗震性能分析和专项论证。建立了三维整体模型按振型分解反应谱法进行多遇地震作用计算及分析,并进行了静力弹塑性分析及静力排线性分析,得出了可供业界同行参考的结论。

Seismic design methods based on the elevated urban rail transit station have not been formulated in the current specifications, ＂Code for Seismic Design of Urban Rail Transit Structures＂is the only draft today. Despite of that, the compe-tent national authorities request higher standards of anti-earthquake capacity in the municipal engineering projects. Therefore, it is very important and necessary to analyze the seismic behavior of elevated urban rail transit station. In this paper,combined with the first phase of Ning-Tian Intercity Railway in Nanjing, a detailed investigation and special demon-stration are made on the seismic behavior of the elevated side type station, some conclusions obtained from the study are use-ful reference in the industry.