关于地铁地震响应的模型振动试验及数值分析

›› 2006, Vol. 27 ›› Issue (8): 1293-1298.

关于地铁地震响应的模型振动试验及数值分析

车爱兰¹，岩楯敞广²，葛修润¹

1. 上海交通大学船舶海洋与建筑工程学院，上海 200030；2. 首都大学东京都市环境学部，日本东京 192-0397

收稿日期:2005-05-20 出版日期:2006-08-10 发布日期:2013-11-26
作者简介:车爱兰，女，1969年生，博士后，主要从事关于结构的抗震性，表层地基的震动特性的研究

Dynamic behaviors of subway structure subjected to strong earthquake motions using shaking table tests and dynamic analyses

CHE Ai-lan¹, IWATATE Takahiro², GE Xiu-run¹

1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200030, China; 2. Civil and Environmental Engineering, Tokyo Metropolitan University, Tokyo 192-0397, Japan

Received:2005-05-20 Online:2006-08-10 Published:2013-11-26

摘要/Abstract

摘要： 为明确大地震时地铁的破坏过程及原因，以1995 年日本阪神－淡路大地震中遭受严重破坏的神户大开地铁车站为对象，进行了一系列的模型振动试验和动力有限元分析。对于作用于地下结构的地震动土压的发生原理、地震波输入方向、结构的埋设深度、地基与结构间的刚性比对地震动土压的影响及在地基-结构系统的非线性响应下结构周围地基终局状态时的地震动土压进行了研究。明确了地震动土压的极限值及在大地震时周围地基的残余应变引起的静止土圧力的存在。为今后改进地震土压力计算方法、提高地下结构抗震设计水平提供了依据。

关键词: 阪神－淡路大地震, 模型振动试验, 动力有限元分析, 地震动土压, 地震响应

Abstract: In order to clarify the dynamic behaviors and the damage mechanism of the subway structure, a series of shaking table tests and dynamic finite element analyses of Dakai subway station damaged in 1995 Hyogoken-nanbu earthquake were performed. The mechanism of the seismic soil pressure acting on the structure, the effects of the input directions of the sinusoidal and random waves, the embedded depth of the subway structure and the shear modulus ratio between the structure and the surrounding ground were investigated. Moreover, from the nonlinear seismic response analysis，the seismic soil pressure in the limit state of the surrounding ground were evaluated. It was resulted that the seismic soil pressure would reach a peak value; and the seismic soil pressure consists of dynamic component and static one caused by residual strain of the ground due to strong earthquake motions. The foundation is provided for amending the calculation method of seismic soil pressure and improving the anti-earthquake designing level of underground structure.

Key words: Hanshin-Awaji earthquake, shaking table test, dynamic finite element analysis, seismic soil pressure, seismic response

中图分类号:

TU 435

车爱兰，岩楯敞广，葛修润 . 关于地铁地震响应的模型振动试验及数值分析[J]. , 2006, 27(8): 1293-1298.

CHE Ai-lan , IWATATE Takahiro , GE Xiu-run . Dynamic behaviors of subway structure subjected to strong earthquake motions using shaking table tests and dynamic analyses[J]. , 2006, 27(8): 1293-1298.

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