钢柱-钢板剪力墙耦合结构性能化抗震设计及评估  

Performance-based seismic design and evaluation of steel column-steel plate shear wall coupled system

作　　者：赵家正 张博 伍云天[1,2] ZHAO Jiazheng;ZHANG Bo;WU Yuntian(School of Civil Engineering,Chongqing University,Chongqing 400045,China;Key Laboratory of New Technology for Construction of Cities in Mountain Area,Ministry of Education,Chongqing University,Chongqing 400045,China)

机构地区：[1]重庆大学土木工程学院,重庆400045 [2]重庆大学山地城镇建设与新技术教育部重点实验室,重庆400045

出　　处：《地震工程与工程振动》2024年第1期73-83,共11页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(51978101)。

摘　　要：钢柱-钢板剪力墙(steel column-steel plate shear wall,SC-SPSW)是利用钢连梁连接钢板剪力墙和两侧钢柱形成的耦合结构体系。该体系可以充分发挥钢板剪力墙、钢连梁和钢柱之间的耦合作用,改善传统钢板剪力墙的缺点,具有良好的抗震性能。采用基于能量平衡的塑性设计理念,并结合相关规范推导出SC-SPSW体系的设计方法。利用SAP2000软件建立了12个不同高度、不同耦连比(coupling ratios,CR)的SC-SPSW算例,并对其进行了拟静力分析和动力时程分析,研究结构的屈服机制以及耦连比对结构受力性能的影响。研究表明,应用该设计方法的结构算例能够满足预期的理想屈服机制,具有良好的抗震性能,并对不同高度的SC-SPSW体系的CR选择提出了建议。The steel column-steel plate shear wall coupled structure(SC-SPSW)uses steel coupling beams to connect the steel plate shear wall and the steel columns on both sides.The system can make full use of the coupling effect between steel plate shear wall,coupling beams and steel columns to improve the shortcomings of traditional steel plate shear walls and have favourable seismic performance.This paper adopts plastic design based on energy concept,and derives the design method of SC-SPSW system by combining with relevant codes.Using SAP2000 software,twelve SC-SPSW system cases with different heights and coupling ratios(CR)were designed and carried out by static analysis and dynamic time history analysis to investigate the yielding mechanism and the influence of the coupling ratio on the seismic performance.It is shown that all SC-SPSW systems applying this design method can achieve the ideal yielding mechanism with excellent seismic performance.Suggestions are also made in terms of the appropriate selection of CR for different structural heights.

关 键 词：耦合体系 耦连比 塑性设计 PUSH-OVER分析 非线性动力分析 

分 类 号：TU398[建筑科学—结构工程]