[1]王建宁,付继赛,庄海洋,等.节点圈梁对复杂异跨地铁车站结构地震反应的影响[J].自然灾害学报,2018,27(06):019-26.[doi:10.13577/j.jnd.2018.0603]
 WANG Jianning,FU Jisai,ZHUANG Haiyang,et al.Effect of ring beam at variable-span joint on earthquake responses of unequal-span subway station[J].,2018,27(06):019-26.[doi:10.13577/j.jnd.2018.0603]
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节点圈梁对复杂异跨地铁车站结构地震反应的影响
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
27
期数:
2018年06期
页码:
019-26
栏目:
出版日期:
2018-12-28

文章信息/Info

Title:
Effect of ring beam at variable-span joint on earthquake responses of unequal-span subway station
作者:
王建宁1 付继赛2 庄海洋2 马国伟1 窦远明1 李景文1
1. 河北工业大学 土木与交通学院, 天津 300401;
2. 南京工业大学 岩土工程研究所, 江苏 南京 210009
Author(s):
WANG Jianning1 FU Jisai2 ZHUANG Haiyang2 MA Guowei1 DOU Yuanming1 LI Jingwen1
1. School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China;
2. Institute of Geotechnical Engineering, Nanjing Tech University, Nanjing 210009, China
关键词:
地下结构异跨地铁车站变跨节点圈梁地震反应抗震性能
Keywords:
underground structureunequal-span subway stationvariable-span jointring beamseismic responseseismic performance
分类号:
X43;X9;U231;TU93
DOI:
10.13577/j.jnd.2018.0603
摘要:
异跨车站结构中的变跨节点位置是结构整体抗震安全的薄弱环节,但目前关于此类复杂地铁车站结构抗震性能方面的研究工作开展较少,尤其针对节点圈梁对结构地震动力反应影响的研究更是少见。本文通过考虑在变跨节点处设置圈梁和不设置圈梁两种情况,研究了上层五跨、下层三跨的大型异跨地铁地下车站结构地震反应特性,对比分析了节点圈梁对异跨车站结构整体加速度反应、侧向变形反应和地震损伤破坏的影响规律。结果表明:节点圈梁的存在能够减小结构楼板的峰值加速度反应,并对地铁车站主体结构的抗水平侧移能力有一定的提高作用,但其将明显影响结构整体的受压损伤分布特征;在变跨节点处不设置圈梁的构造方法不利于异跨车站结构的抗震设计,而设置圈梁则更有利于提高结构整体的抗震安全。
Abstract:
The variable-span joint of the unequal-span subway station is one of the weak links of the overall seismic safety of the structure. However, few studies on the seismic response of large-scale unequal-span subway underground structures, especially for influence of ring beam at joint on seismic performance of complex subway stations, have been reported. Accordingly, the effects of the ring beam at the variable-span joint on seismic responses of the unequal-span subway station with five spans in the upper floor and three in the lower have been investigated and estimated by modeling two calculating cases. The seismic response laws on the acceleration response, the lateral deformation response and the earthquake damage of the structure are analyzed. As a result, though the ring beam at variable-span joint can increase the lateral deformation stiffness of the complicated subway station and can reduce the peak acceleration response of the structural slabs, it changes the distribution of compressive damages across the subway station. In addition, the construction methods with no ring beams at the variable-span joint is unfavorable to the earthquake-resistant design of the unequal-span subway station.

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备注/Memo

备注/Memo:
收稿日期:2018-09-09;改回日期:2018-10-19。
基金项目:国家自然科学基金项目(51778290,51778282);江苏省高校自然科学基金重大项目(16KJA560001);河北省研究生创新资助项目(CXZZBS2018038)
作者简介:王建宁(1992-),男,博士研究生,主要从事地铁地下结构抗震性能方面的研究.E-mail:wangjianninghebut@163.com
通讯作者:庄海洋(1978-),男,教授,博士,主要从事土-结构动力相互作用等方面的研究.E-mail:zhuang7802@163.com
更新日期/Last Update: 1900-01-01