地铁地下车站-土体-地表建筑相互作用体系的地震响应特性  

Seismic response analysis of interaction system of subway station-soil-surface building

作　　者：鲍艳[1,2] 李文辉[1,2] 安军海[1,2] BAO Yan LI Wenhui AN Junhai(Key Laboratory of Urban Security ＆ Disaster Engineering, Ministry of Education, Beijing University of Technology,Beijing 100124, China Center of Cooperative Innovation for Beijing Metropolitan Transportation, Beijing 100124, China)

机构地区：[1]北京工业大学城市与工程安全减灾省部共建教育部重点实验室,北京100124 [2]北京城市交通协同创新中心,北京100124

出　　处：《黑龙江科技大学学报》2016年第3期262-267,共6页Journal of Heilongjiang University of Science And Technology

基　　金：国家自然科学基金项目(90715035);国家自然科学基金面上项目(41272337);国家自然科学基金创新研究群体项目(51421005)

摘　　要：以北京地铁17号线望京西站密贴地面公交枢纽为例,基于FLAC3D软件计算平台,建立土-结构作用体系数值模型,研究了单体地铁车站、公交枢纽和两者同建结构的地震响应特性。结果表明:在水平地震作用下,单体地铁车站与两者同建结构相比,各层层间相对位移无明显差别。两者同建时,其结构监测点的最大压应力大于单体地铁车站的应力值,而加速度峰值较小;公交枢纽各层层间相对位移小于单体公交枢纽层间位移,加速度峰值相比单体公交枢纽小。无论是单体地铁车站、公交枢纽,还是两者同建,输入人工波时的各层层间位移和柱端最大压应力均大于输入阪神波时的数值。该研究可以为相似工程的抗震设计提供参考。This paper is concerned with the simulation of the seismic response of interaction system of subway station-soil-surface building.The simulation builds on the Beijing subway line 17 Wangjingxi station closely-attached the transit hub above used as engineering background,combined with the finite difference procedure FLAC3D.Results show that,when exposed to the action of horizontal earthquake,the single subway has a greater storey drift than a transit hub above;the single subway station has the smaller maximum compressive stress,for the reason that the transit hub has a larger the deadweight than that the original soil;single transit hub has a smaller storey drift than the transit hub which has a subway station below;and the singe transit hub has a greater acceleration peak.A wider main frequency distribution range of imported vibration occurs with a greater maximum compressive stress of the transit hub and subway station is.This study could provide a reference for similar projects.

关 键 词：地铁车站 相互作用体系 地震响应 地表建筑 

分 类 号：U231.4[交通运输工程—道路与铁道工程] U452.28[建筑科学—桥梁与隧道工程]