[1]陈清军,李文婷.地铁车站-隧道-土相互作用体系地震反应[J].地震工程与工程振动,2018,(04):009-15.[doi:10.13197/j.eeev.2018.04.9.chenqj.002]
 CHEN Qingjun,LI Wenting.Seismic responses analysis of subway station-tunnels-soil-interaction system[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,(04):009-15.[doi:10.13197/j.eeev.2018.04.9.chenqj.002]
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地铁车站-隧道-土相互作用体系地震反应
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《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2018年04期
页码:
009-15
栏目:
论文
出版日期:
2018-10-28

文章信息/Info

Title:
Seismic responses analysis of subway station-tunnels-soil-interaction system
作者:
陈清军1 李文婷2
1. 同济大学 土木工程防灾国家重点实验室, 上海 200092;
2. 上海师范大学 建筑工程学院, 上海 201418
Author(s):
CHEN Qingjun1 LI Wenting2
1. State Key Laboratory of Disaster Reduction in Civil Engineering, Tognji University, Shanghai 200092, China;
2. College of Civil Engineering, Shanghai Normal University, Shanghai 201418, China
关键词:
地下结构土-结构相互作用数值模拟动力分析地震反应
Keywords:
underground structuresoil-structure-interactionnumerical simulationdynamic analysisseismic response
分类号:
U451
DOI:
10.13197/j.eeev.2018.04.9.chenqj.002
摘要:
为研究地铁车站-隧道-土相互作用体系在地震中的整体力学行为,并探讨地铁车站与隧道接头结构对地下轨道交通结构地震响应的影响,本文建立了地铁车站-隧道-土相互作用体系的大型三维整体有限元模型,借助Ls-dyna有限元软件进行地震动时程分析,探讨了地铁车站-隧道-土相互作用体系的地震反应规律,从定量角度研究了地铁车站与隧道接头结构对车站及隧道地震响应的影响程度及范围。研究表明,地震作用下地铁车站与隧道结构的受力明显不均匀;地铁车站结构的最大层间位移响应在接头部位较车站中间截面显著减小,接头结构的影响距离约为车站纵向跨度的5倍;地铁隧道在接头结构处的应力响应较隧道其他位置显著增大,但增大程度随着与接头部位距离的增大而迅速减弱。
Abstract:
Aiming to investigate the integrated mechanical behavior of subway station-tunnels-soil-interaction system during earthquakes, and aiming to reveal the influence of station-to-tunnel joint on both the station’s and tunnels’ seismic responses, this paper established the whole finite element model of a subway station-subway tunnels-soil-interaction system. By conducting the seismic history analysis by procedure Ls-dyna, seismic responses of the subway station-subway tunnels-soil-integration system are discovered; and the influence degree and distance of station-to-tunnel joint on both the station’s and tunnels’ seismic responses are quantificationally given. The research shows that the stress response of both station and tunnels is obviously uniform; the station-to-tunnel joint can enormously decreases the station’s inter-story drift responses; and the influence distance is roughly 5 times of the station’s longitudinal span; the station-to-tunnel joint can increase the tunnel’s stress response significantly, even the influence diminishes quickly with distance.

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备注/Memo

备注/Memo:
收稿日期:2018-03-15;改回日期:2018-05-27。
基金项目:国家自然科学基金项目(51778489);国家科技支撑计划课题(2015BAK17B04)
作者简介:陈清军(1963-),男,教授,博士,主要从事工程结构抗震研究.E-mail:chenqj@tongji.edu.cn
通讯作者:李文婷(1990-),女,讲师,博士,主要从事工程结构抗震研究.E-mail:lwt@shnu.edu.cn
更新日期/Last Update: 1900-01-01