[1]彭晓,黄晓斌,阙海群,等.ECC-BFRP加固地铁车站抗震性能研究[J].地震工程与工程振动,2022,42(06):184-191.[doi:10.13197/j.eeed.2022.0620]
　PENG Xiao,HUANG Xiaobin,QUE Haiqun,et al.Seismic performance of subway station reinforced by the ECC-BFRP[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2022,42(06):184-191.[doi:10.13197/j.eeed.2022.0620]
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ECC-BFRP加固地铁车站抗震性能研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
42
期数:
2022年06期
页码:
184-191
栏目:
第十一届全国地震工程学术会议专题
出版日期:
2022-12-31

文章信息/Info

Title:
Seismic performance of subway station reinforced by the ECC-BFRP
作者:
彭晓1; 2; 3; 4;  黄晓斌1;  阙海群1;  陈轩2; 3; 4
1. 南昌市城市规划设计研究总院, 江西 南昌 330038;
2. 西安建筑科技大学 土木工程学院, 陕西 西安 710055;
3. 西安建筑科技大学 结构工程与抗震教育部重点实验室, 陕西 西安 710055;
4. 陕西省岩土与地下空间工程重点实验室, 陕西 西安 710055
Author(s):
PENG Xiao1; 2; 3; 4;  HUANG Xiaobin1;  QUE Haiqun1;  CHEN Xuan2; 3; 4
1. Nanchang Urban Planning and Design Institute, Nanchang 330038, China;
2. School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China;
3. Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education(XAUAT), Xi’an 710055, China;
4. Shaanxi Key Lab of Geotechnical and Underground Space Engineering(XAUAT), Xi’an 710055, China
关键词:
ECC-BFRP; 地铁车站; 土-结构共同作用; 有限元模型; 地震反应
Keywords:
BFRP-ECC; subway station; soil-structure-interaction; finite element model; seismic response
分类号:
TU435
DOI:
10.13197/j.eeed.2022.0620
摘要:
为提升高烈度地区地铁车站结构的抗震性能，文中以西安某黄土场地地铁车站结构为背景，提出应用ECC-BFRP复合层来加固地铁车站结构中柱。利用有限元软件Abaqus建立土-地铁车站结构相互作用体系三维有限元模型，分别对水泥砂浆（Mortar）加固、ECC加固、Mortar-BFRP和ECC-BFRP复合层加固情形下地铁车站结构以及未加固情形下地铁车站结构的地震反应进行了对比分析，获得了不同加固措施下地铁车站的位移响应以及整体和局部构件塑性发展变化规律。研究结果表明：采用ECC-BFRP复合加固可有效提升地铁车站中柱的刚度，减小车站的整体地震反应；同时，中柱的塑性发展程度明显减小，其它构件的塑性应变分布较为均匀，车站的抗震性能得到了有效提升。研究成果可为地下结构抗震加固设计提供重要参考。
Abstract:
To improve the seismic performance of subway station structure in high intensity area, this paper proposes the application of ECC-BFRP composite layer to strengthen the central column of subway station, which was based on a station in loess site in Xi’an. A three-dimensional finite element model of soil subway station structure interaction system was established by Abaqus finite element software. The seismic responses of subway station reinforced by the Mortar, ECC, Mortar-BFRP and ECC-BFRP layer and unreinforced station were comparatively analyzed, and the structural displacement response and the change law of plastic development for the overall structure and local components were obtained. The results indicated that the ECC-BFRP composite layer could effectively improve the stiffness of the central column and reduce the seismic response of the station. Meanwhile, the plastic development degree of the central column was significantly reduced, and the plastic strain distribution of other components was relatively uniform. Accordingly, the seismic performance of the station was effectively improved. The research results provide an important reference for the seismic strengthening design of underground structures.

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备注/Memo

备注/Memo:
收稿日期:2022-07-22;改回日期:2022-11-08。
基金项目:国家自然科学基金项目(52108473);中国博士后科学基金项目(2021M693876)
作者简介:彭晓(1990-),男,工程师,硕士,主要从事结构设计理论方面的研究.E-mail:228322618@qq.com
通讯作者:陈轩(1990-),男,讲师,博士,主要从事结构抗震、复合材料加固方面的研究.E-mail:chenxuan@xauat.edu.cn
更新日期/Last Update: 1900-01-01