摘要
提出一种新型斜拉索-钢抗弯框架-梁连接钢板剪力墙(简称CS-MRF-BCSPSW)抗侧力体系。CS-MRF-BCSPSW体系综合了钢抗弯框架(MRFs)、钢板剪力墙(SPSWs)和斜拉索(CS)的各自优点,能有效地提升钢抗弯框架-梁连接钢板剪力墙(BCSPSWs)体系的抗侧力能力。CS-MRF-BCSPSW体系具有双重抗震防线和自复位能力,且BCSPSWs具有耗能能力。首先,阐述了CS-MRF-BCSPSW体系的组成及其ABAQUS有限元模型;接着,数值研究了CS-MRF-BCSPSW体系的抗侧力能力。具体地,数值研究了BCSPSWs的高厚比和宽高比、拉索截面面积、拉索倾角和拉索预应力对CSMRF-BCSPSW体系弹性刚度和抗侧力的影响和BCSPSWs的高厚比和宽高比和拉索预应力对CSMRF-BCSPSW体系滞回性能的影响。数值结果表明:CS-MRF-BCSPSW是一种新型的高性能抗震结构体系。
An innovative lateral force resistant system, proposed as the cable-stayed steel moment resistant frame- beam connection based steel plate shear wails （CS-MRF-BCSPSW） system, is introduced and discussed. The CS- MRF-BCSPSW system integrates the steel moment resistant frames （MRFs）, steel plate shear walls （SPSWs）, and inclined cables, thus effectively promoting the lateral resistant capacity of the MRF-BCSPSW system. Likewise, the CS-MRF-BCSPSW renders both the dual seismic defense lines and self-centering capacity, with the BCSPSWs hav- ing high energy dissipation capability under severe earthquakes. Firstly, the composition and ABAQUS finite ele- ment model of the CS-MRF-BCSPSWsystem are elucidated. Subsequently, the lateral force resistant capacity of the CS-MRF-BCSPSW system is numerically evaluated. Specifically, the effects are scrutinized of the BCSPSW height- to-thickness ratio and aspect ratio, cable angle, cable area, cable prestressing force on the lateral elastic stiffness and lateral force resisting as well as the BCSPSW height-to-thickness ratio and aspect ratio and cable prestressing force on the hysteretic energy dissipation capability. The results demonstrate that the CS-MRF-BCSPSW is an inno- vative structural seismic-resistant system with high performance.
出处
《地震工程与工程振动》
CSCD
北大核心
2016年第6期142-152,共11页
Earthquake Engineering and Engineering Dynamics
关键词
斜拉索
钢抗弯框架
钢板剪力墙
自复位能力
有限元分析
inclined cables
steel moment resisting frames
steel plate shear walls
self-centering capacity
finiteelement analysis
