文献类型：期刊文献

中文题名：三尺度地震作用下含地连墙地下结构响应分析

英文题名：Response Analysis of Structures With Underground Continuous Wall Under Three-scale Seismic Loads

作者：何向彤[1];范惠明[2]

机构：[1]浙江建设职业技术学院,杭州311231;[2]华东理工大学,上海200237

年份：2016

卷号：32

期号：4

起止页码：66

中文期刊名：科技通报

外文期刊名：Bulletin of Science and Technology

收录：CSTPCD;;北大核心:【北大核心2014】；

基金：陕西省教育厅专项科研项目(2013JK0976);教育部高等学校博士学科点专项科研基金(20126120120010);中冶重大科技专项资助;西安建筑科技大学学科建设人才基金项目(RC1350)

语种：中文

中文关键词：地铁车站;地下连续墙;三尺度地震荷载;时程分析法

外文关键词：subway station;;underground continuous wall;;three-scale seismic loads;;time history analysis

摘要：利用小波包变换反应谱拟合技术,在实测地震波的基础上修改波形,合成了5条符合场地要求的加速度时程,包括一条小震、一条中震和三条大震波形。采用截面有限元技术建立地铁车站的典型截面弹塑性模型,将拟合反应谱的五条三尺度地震波作为地震荷载输入,计算得到了含地下连续墙地铁车站在三尺度地震下的响应。结果表明,小震和中震作用下车站位移变形很小,应力变化达到10%和30%;大震作用下,结构达到或接近了材料的最大拉应力,然而没有发生垮塌的情况。该工程的设计符合规范要求,达到预计的抗震目标。
Five adjusted acceleration histories that match target response spectrums were synthesized on the base of real earthquake records via wavelet packet technique, including one small seismic record, one medium seismic record and three large seismic records. The elastic-plastic FEM model was established according to the typical section of the subway station. The five accelerations were input to the model to obtain the responses of the station under three-scale earthquakes. Results shows that the displacements and stress variations are small under small and medium earthquakes, while those under large earthquakes are considerable despite far from collapse, which demonstrating the aseismic design meets the requirements of the code.