摘要
本文对动力有限元法中的一系列问题进行了讨论,对土体动力本构模型和土-结构接触面模型的设定提出了建议。在此基础上以天津地铁1、2号线工程为实例,分别对水平地震作用下圆形盾构隧道的动位移、动应力与动应变以及地表位移等动力反应进行了非线性分析,得出了一些有益的规律和结论,从而为地铁隧道的抗震设计与研究提供参考和依据。
A series of probems on dynamic FEM are discussed and suggestions about setting of soil dynamic constitutive model and soil-structure contact model are given in the paper. With the example of Tianjin No.1 subway and No.2 subway, nonlinear analysis of dynamic response including displacement, stress and strain of circular tunnel and displacement of the surface of ground are conducted to draw some helpful conclusions, which present references and arguments for seismic designing of metro tunnel.
出处
《地震工程与工程振动》
CSCD
北大核心
2004年第6期146-153,共8页
Earthquake Engineering and Engineering Dynamics
基金
天津市自然科学基金项目(013607711)
