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| 相邻框架结构与地铁车站的间距比对地铁车站地震响应的影响 |
| Influence of the spacing ratio of adjacent frame structures to subway stations on the seismic response of subway station |
| 投稿时间：2024-03-11 修订日期：2024-03-27 |
| DOI： |
| 中文关键词: 地表结构-土-地下结构相互作用(SSSI) 地震响应 数值模拟 非线性 间距比 |
| 英文关键词:Surface structure-soil–underground structure interaction(SSSI) seismic acceleration response Numerical simulation nonlinear spacing ratio |
| 基金项目:湖南省教育科研项目优秀青年项目(21B0420)；湖南省自然资源科研项目(湘自资科20230144DZ) |
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| 中文摘要: |
| 以典型两层三跨地铁车站为研究对象,建立其二维有限元数值模型,研究了不同类型地震波作用下,相邻框架结构与地铁车站的间距比对结构-土-结构相互作用(Surface structure-soil–underground structure interaction, SSSI)效应的影响规律。通过对比各间距比情况下地铁车站地震响应的差异得到的结果表明：(1)不同频谱的地震波以及相邻结构与地铁车站的间距比对地铁车站的地震响应产生了显著的影响。(2)间距比对地铁车站位移响应的影响幅度大于加速度响应(3)间距比较小时,地铁车站地震响应通常受到有利的影响,当间距比大到一定程度时,地铁车站地震响应受到的影响程度不会变化,甚至不再有影响。 |
| 英文摘要: |
| A typical two-story, three-span subway station is taken as the research object, and a two-dimensional finite element numerical model is established to investigate the influence of the spacing ratio between the adjacent frame structure and the subway station on the effect of Surface structure-soil-underground structure interaction (SSSI) under the action of different types of seismic waves.The results obtained by comparing the differences in the seismic response of the subway stations under various spacing ratios show that: (1) seismic waves of different spectra and the spacing ratios of neighboring structures to the subway stations significantly affect the seismic response of the subway stations. (2) The magnitude of the effect of the spacing ratio on the displacement response of the subway station is greater than that of the acceleration response. (3) When spacing ratios are small, the seismic response of subway stations is usually favorably affected, and when spacing ratios are large, the degree to which the seismic response of subway stations is affected does not change, or even ceases to be affected. |
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