摘要
为了提高超高层结构的抗侧刚度及其抗震性能,使用屈曲约束支撑并比较了设置支撑前后的结构性能,分析表明支撑在小震时可提高结构的抗侧刚度,在大震时可改善剪力墙在中部的损伤情况,提供附加阻尼比,提高结构的整体抗震性能。
This paper presents the application of buckling restrained brace in order to improve the lateral stiffness and seismic performance of the super high-rise structures.By comparative dynamic analysis of the structure with and without buckling restrained brace,the influence of buckling restrained brace to buildings' seismic behavior is researched.The conclusion is that:buckling restrained brace can enhance the lateral stiffness of the high-rise structures under small earthquakes,and can improve the shear wall damage in the middle of the structures,provide additional damping ratio,and improve the overall seismic performance of the structures under strong earthquakes.
出处
《广东土木与建筑》
2012年第9期6-9,共4页
Guangdong Architecture Civil Engineering
基金
"十一五"国家科技支撑项目(2009BAJ28B03)
国家自然科学基金项目(51208129)
广东省自然科学基金项目(10451009101004568)
关键词
超高层
屈曲约束支撑
抗侧刚度
抗震性能
super high-rise structure
buckling restrained brace
lateral stiffness
seismic performance
