基于薄层分析的反应位移法研究  

Displacement Response Method Based on Thin Layer Method

作　　者：王文沛[1] 陶连金[1] 张波[1] 边金[2] 李文博[1] 

机构地区：[1]北京工业大学城市与工程安全减灾教育部重点实验室,北京100124 [2]广东海洋大学工程学院,广东湛江524088

出　　处：《北京工业大学学报》2012年第8期1231-1235,共5页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(40972189);北京市自然科学科技基金重点资助项目(8111001)

摘　　要：介绍薄层单元分析法结合容积法求解半无限空间层状地层中地下结构水平、回转、垂直及轴向的地层阻抗函数过程,并将地层阻抗函数运用到地下结构抗震设计方法-反应位移法中,综合考虑地下结构水平、回转、垂直运动特性,较大程度上提高了反应位移法的计算精度.在北京地区典型地质条件下的典型地铁车站结构模型振动台试验的基础上,进行一般反应位移法及基于薄层分析的反应位移法的计算分析,并将其内力及变形值与一般反应位移法及振动台试验结果进行比对.结果表明,该方法与地铁车站结构振动台的试验结果符合良好,验证了这种基于薄层分析的反应位移法的适用性.This paper introduces the calculation procedure of impedance function of stratified soil with underground structures through thin layer method （TLM） combining flexible volume method, which is applied to displacement response method. Horizontal, vertical and rotating motion characteristics are considered, and its calculation accuracy is improved significantly. Based on the shaking table test of typical subway station in Beijing, general displacement response method and displacement response method based on TLM are used to analyze the stress and deformation of the subway station. Then, the stress and deformation values of the subway station calculated by general displacement response method and displacement response method based on TLM are compared with those of shaking table tests. Results show that displacement response method based on TLM agrees well with the shaking table test of subway station, and its applicability can be verified.

关 键 词：反应位移法 薄层单元分析法 地层阻抗函数 地铁车站 振动台试验 

分 类 号：TU92[建筑科学—建筑设计及理论]