- 摘 要
-
(1湖北第二师范学院建筑与材料工程学院, 武汉 430205; 2 温州大学建筑工程学院, 温州 325035)
[摘要]周围地下空间开发结构与地铁车站连通形成地下综合体,在其相连接侧墙上进行开孔以方便通行,但开孔必定会对结构抗震性能产生影响,因此有必要分析其地震响应。以实际工程为背景,建立结构三维模型,分析不同开孔方式对结构地震响应的影响,确定地下结构空间效应以及抗震薄弱部位。分析结果表明:地下综合体中车站部分的层间位移角、柱端水平弯矩等响应均大于相应的标准车站,表明侧向开孔削弱了结构的整体刚度,降低了其抗震性能,但不同开孔方式对结构地震响应的影响并不明显。
[关键词]侧向连续开孔;地下综合体;地震响应;空间效应;抗震性能
中图分类号:TU921,TU352文献标识码:A文章编号:1002-848X(2021)10-0073-07
Seismic response analysis of underground urban complex with continuous openings on lateral wall
MA Zhaoxia1, WANG Guobo2
(1 Department of Architecture and Material Engineer,Hubei University of Education,Wuhan 430205, China; 2 College of Civil Engineering and Architecture, Wenzhou University, Wenzhou 325035, China)
Abstract:The surrounding underground space development structure is connected with the subway station to form an underground urban complex, and openings are made on the connected side walls to facilitate people’s access. Openings must have an impact on the seismic performance of the structure, so it is necessary to analyze the seismic response. Based on the actual engineering background, the three-dimensional model was established, the influence of different opening methods on the seismic response of the structure was analyzed, and the spatial effects of the underground structure and the weak parts of the earthquake were determined. The analysis shows that the response angles of the interlayer displacement and the horizontal bending moment at the column end of the underground urban complex are larger than the corresponding standard stations, indicating that the lateral openings weaken the overall stiffness of the structure and reduce its seismic performance. But the influence of different opening methods on the seismic response of the structure is not obvious.
Keywords:continuous openings on lateral wall;underground urban complex;seismic response;spatial effect;seismic performance
*国家自然科学基金(5187082277,5207082164)。
作者简介:马朝霞,博士,副教授,Email:mzxcivil@126.com;通信作者:王国波,博士,教授,Email:20190337@wzu.edu.cn。