屈曲约束开斜槽钢板剪力墙简化分析模型及其应用  

Simplified model of the buckling restrained steel plate shear wall with chutes and its application in the steel frame structure

作　　者：金双双[1] 白久林[2] Jin Shuang-shuang;Bai Jiu-lin(Chongqing Jiaotong University,Chongqing 400074,China;Chongqing University,Chongqing 400045,China)

机构地区：[1]重庆交通大学土木工程学院,重庆400074 [2]重庆大学土木工程学院,重庆400045

出　　处：《工程抗震与加固改造》2020年第3期30-36,42,共8页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金项目(51708073);重庆市教委科学技术研究基金项目(KJ1705113)。

摘　　要：屈曲约束开斜槽钢板剪力墙是在非加劲薄钢板剪力墙基础上提出的一种兼具承载-耗能双功能、可预制装配的新型耗能减振构件。基于剪力墙的受力机理,本文提出了可用于结构体系分析和设计的简化等效多杆模型,并采用OpenSees软件建立等效多杆的简化模型,通过与拟静力往复试验结果的分析对比剪力墙基本力学性能,验证了等效多杆模型的适用性。将其应用到钢框架中并形成钢框架-新型剪力墙双重抗侧力结构体系,采用本文提出的简化模型,对一30层结构进行了抗震设计和分析。结果表明,屈曲约束开斜槽钢板剪力墙充分发挥了抗侧-耗能的双功能,使结构体系具有优越的抗震能力。Buckling-restrained steel plate shear wall with chutes was proposed as a novel lateral force-resisting and energy-dissipating device of structure,which can be fabricated in factory and assembled in construction sites.Based on the mechanics of shear wall,this paper presents an equivalent multi-bar model which can be used to simplify structural analysis and design.The equivalent model is established by OpenSees software,and the differences between the model and test are comprehensively evaluated.Through quasi-static cyclic analysis,the accuracy of simplified model is verified.The new shear walls are applied into the steel structure,and a case of 30-story dual lateral force-resisting system is designed and analyzed.The results show that the new shear wall can provide lateral resistance and energy dissipation,resulting in well seismic performance of the new steel wall-frame steel structure.

关 键 词：耗能元件 钢板剪力墙 斜槽 双重抗侧力体系 抗震性能 

分 类 号：TU375.4[建筑科学—结构工程]