不同净距垂直交叉组合地铁车站结构地震响应研究  

Study of seismic response of different clear-distance vertical intersecting combination subway station structures

作　　者：李积栋[1,2] 陶连金[2] 油新华[1] 张金喜[2] 

机构地区：[1]中国建筑工程总公司技术中心,北京101300 [2]北京工业大学建筑工程学院,北京100124

出　　处：《岩石力学与工程学报》2016年第A02期3890-3897,共8页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金重点项目(51038009);北京市自然科学基金重点项目(8111001)~~

摘　　要：为了探究不同净距对垂直交叉组合地铁车站地震响应的影响,开展大型地铁车站振动台试验。介绍试验设计方案、给出不同净距车站结构模型和土层地震响应的量测结果,并与单体上层车站的地震响应进行对比分析。试验数据表明:(1)随着上下两车站净距的增加,上层结构模型的地震响应增大,而下层结构模型的地震响应减小,上下两结构间的相对水平位移增大;(2)随着上下两结构模型净距的增加,上层结构模型中边墙顶部和中柱顶部的应变幅值逐渐增大,而边墙底部和中柱底部的应变幅值逐渐减小;下层结构模型各测点的应变幅值均有所减小;(3)着上下两结构模型净距的改变,上层结构模型底部测点应变幅值的变化幅度大于上部,下层结构模型顶部测点应变幅值的变化幅度大于下部。Shaking table tests of subway station with different clear-distances were performed to study on the seismic response of these subway stations. The design of tests were presented,some results of seismic response about the subway station,which with different clear-distances,were provided and compared with the seismic response of single subway station. Experimental data indicate that：（1） With clear-distance increases,seismic response of upper structural model increases,and the lower structural model decreases,the relative horizontal displacement between upper and lower structural model.（2） With clear-distance increases,the strain amplitude at the top of sidewall and center pillar increases,the strain amplitude at the bottom of sidewall and center pillar decreases,and the strain amplitude of lower structure model all decreases.（3） With clear-distance changes,the range of strain amplitude at the bottom of upper structure model is greater than the upper,and the range of strain amplitude at the top of lower structure model is greater than the lower.

关 键 词：土力学 地铁车站 振动台 净距 地震响应 应变幅值 

分 类 号：TU44[建筑科学—岩土工程]