不同净距垂直交叉组合地铁车站结构地震响应研究

doi:10.13722/j.cnki.jrme.2015.1216

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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。

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	李积栋1
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	陶连金2
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关键词 ：土力学, 地铁车站, 振动台, 净距, 地震响应, 应变幅值

Abstract：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.

Key words： soil mechanics subway station shaking table clear-distance seismic response strain amplitude

引用本文:

李积栋1，2，陶连金2，油新华1，张金喜2. 不同净距垂直交叉组合地铁车站结构地震响应研究[J]. 岩石力学与工程学报, 2016, 35(S2): 3890-3897.
LI Jidong1，2，TAO Lianjin2，YOU Xinhua1，ZHANG Jinxi2. Study of seismic response of different clear-distance vertical intersecting combination subway station structures. , 2016, 35(S2): 3890-3897.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2015.1216 或 https://rockmech.whrsm.ac.cn/CN/Y2016/V35/IS2/3890

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