西安软土地区地铁的地震反应分析

英文篇名：Analysis of Seismic Response of the Subway in Soft Soil Area in Xi'an
中文刊名：铁道建筑技术
英文刊名：Railway Construction Technology
作者：何明华
英文作者：He Minghua(1.China Railway 5th Survey & Design Institute Group Co.Ltd. ; Beijing 102600 ; China ; 2.School of Civil Engineering ; Bejing Jiaotong University ; Beijing 100044 ; China)
中文关键词：地铁车站 ; 地震响应 ; 震害分析 ; 有限元
英文关键词：subway station ; seismic response ; earthquake damage analysis ; finite element
出版日期：2010-06-20
机构：中铁第五勘察设计院集团有限公司;北方交通大学土木工程学院;
年：2010
期：06
出版单位：铁道建筑技术

摘要

选取西安市一地铁车站结构,采用Midas GTS有限元软件建立模型,结合阪神地震中的车站的震害现象,来分析印证地下车站结构的地震响应。计算结果表明:地震对结构影响较大的地方在顶、底板与柱相交处,柱子是整个车站结构中最脆弱的构件。地震荷载组合对车站的结构配筋不起控制性作用。在边墙及纵梁处均设置加腋,控制柱的轴压比,配置好柱的抗震箍筋,可以有效提高车站的抗震能力。该研究成果可为西安市地铁车站结构的抗震设计提供参考。
This paper studies the subway station structure in Xi'an.Using Midas GTS finite element software to establish the model and with a combination of the earthquake damage in the earthquake of the Kobe earthquake,the papers aims to analyze and prove the earthquake response of the underground station structure.The result of the calculation shows that the huge influence of the earthquake on the structure lies in the junction of pillars and top or bottom boards.The pillars are the most fragile in the whole station structure.The earthquake loading does not control the structure reinforcement of the station.Haunches should be equipped in the sidewalls and stringers.The axial compression ratio of the pillar should be controlled.Seismic stirrups should be allocated.All of these can help enhance the seismic ability of the station.The outcome of the study can be used as reference for the seismic design of Xi'an subway.

引文

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