采用榫式柱端连接的地铁车站抗震性能研究  

Study on Seismic Performance of Subway Station with Tenon Column End Joints

作　　者：熊仲明[1] 钱昊 陈轩 田鹏刚 牛建辉 解智勋 XIONG Zhongming;QIAN Hao;CHEN Xuan;TIAN Penggang;NIU Jianhui;XIE Zhixun(Xi'an University of Architecture and Technology,Xi'an,Shaanxi 710055,China;Future City Innovation Technology Co.Ltd,Shaanxi Construction Engineering Holding Group,Xi'an,Shaanxi 710116,China)

机构地区：[1]西安建筑科技大学,西安710055 [2]陕西建工控股集团未来城市创新科技有限公司,西安710116

出　　处：《铁道工程学报》2024年第11期96-103,共8页Journal of Railway Engineering Society

基　　金：国家自然科学基金项目(52378534);陕西省自然基金重点项目(2022JZ-23);西部装配式建筑工业化协同创新科学计划项目(N202201);秦创原创新驱动平台-未来城市建设与管理创新联合研究中心科研项目(20211177-ZKT08)。

摘　　要：研究目的:为提高装配式地铁车站的中柱变形能力和施工效率,提出一种榫式预制柱端连接。本文采用ABAQUS有限元软件分析预制柱端连接的破坏模式、受力机理和抗震性能,并对比采用榫式预制柱端连接的装配式地铁车站和现浇地铁车站在地震作用下的动力响应差别。研究结论:(1)榫式-螺栓柱端节点具有较好的承载力、变形能力和耗能能力,具有较好的抗震性能;(2)与现浇地铁车站相比,采用榫式-螺栓柱端节点的装配式地铁车站结构层间位移角略有增加,但中柱和顶底板与侧墙连接处的受拉损伤较小;(3)榫式-螺栓连接设计通过释放部分柱底约束,有效提升了中柱的安全性,增强了结构的抗倒塌能力;(4)本研究成果对干式预制柱端连接在地铁车站的应用和推广具有参考价值。Research purposes:To improve the deformation capacity and construction efficiency of center columns in assembled subway stations,a mortise-and-tenon prefabricated column end connection was proposed.In this paper,ABAQUS finite element software was used to analyze the damage mode,force mechanism and seismic performance of prefabricated column end connections,and to compare the difference in dynamic response between assembled subway stations with mortise-and-tenon prefabricated column end connections and cast-in-place subway stations under seismic action.Research conclusions:(1)The tenon-bolt column end joints have better load carrying capacity,deformation capacity,and energy dissipation capacity,and better seismic performance.(2)Compared with cast-in-place subway stations,the structural interstory displacement angle of the assembled subway station with tenon-bolt column end joints increases slightly,but the tensile damages of the center columns and the connection of the top base plate with the side walls are smaller.(3)The design of tenon-bolt joints effectively enhances the center columns and the connection of top base plate with side walls by releasing some of the column bottom constraints,which effectively improves the safety of the center column and enhances the collapse resistance of the structure.(4)The results of this paper have reference value for the application and promotion of dry prefabricated column end connections in subway stations.

关 键 词：地铁车站 装配式柱端节点 抗震性能 动力响应 数值模拟 

分 类 号：TU375.3[建筑科学—结构工程]