混凝土剪力墙结构-框架结构防屈曲支撑抗震性能研究
Research on Anti-buckling Behavior of Concrete Shear Wall Structure-frame Structure
龙威1
作者信息
- 1. 贵阳市建筑设计院有限公司,贵州 贵阳 550000
- 折叠
摘要
为了提升剪力墙结构-框架结构的抗震性能,文中在剪力墙结构-框架结构的基础上设计了防屈曲支撑,并对改进后的结构进行了抗震性能测试,分析其刚度性能及耗散性能.结果表明,随着水平位移的增加,剪力墙-框架结构的荷载-位移曲线呈现一个闭环;随着加载位移水平的增加,闭合的滞回曲线环出现回陇的现象,其面积不断降低.骨架曲线初期为近似线性增加的现象,后期开始出现缓慢增加至极限荷载,最后曲线开始发生下降的趋势;剪力墙-框架结构在正负两个方向的刚度性能较为接近,差异较小.增加防屈曲支撑的剪力墙-框架结构具有较强的承载能力.
Abstract
In order to improve the seismic performance of the shear wall-frame structure,anti-buckling bracing was designed on the basis of the shear wall-frame structure,and the seismic performance of the improved structure was tested to analyze its stiffness and dissipation perform-ance.The results show that the load-displacement curve of shear wall-frame structure presents a closed loop with the increase of horizontal dis-placement and unloading process.With the increase of the loading displacement level,the closed hysteresis curve loop appears to backflow and its area decreases continuously.The skeleton curve increases approximately linearly at the beginning,slowly increases to the ultimate load at the later stage,and finally the curve begins to decline.The stiffness properties of the shear wall-frame structure in both positive and negative directions are close,and the difference is small.The shear wall-frame structure with anti-buckling supports has a strong bearing capacity.
关键词
剪力墙/框架结构/防屈曲支撑/抗震性能Key words
Shear wall/Frame structure/Anti-buckling support/Seismic performance引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据