摘要
防屈曲支撑(Bucking Restrained Brace,简称BRB)作为一种当今颇具应用前景的耗能减震构件,可以在地震来临时展现出良好的耗能能力和延性。介绍了BRB的基本原理和布置原则,并结合工程案例,采用有限元软件对一栋采用支撑型耗能器的学校建筑(9度区)进行了动力弹塑性分析和抗震性能评价。分析结果表明:在结构的合理位置设置BRB可以有效地提高原结构的抗震性能,是实现建筑结构基于性能化设计的有效方法。
As a kind of prospective energy dissipation and vibration reduction component ,nice energy dissipation capacity and ductility of buckling restrained brace (BRB ) could be exhibited when the structures subjected to the earth quake. In this paper ,basic principle and arrangement principle of BRB have been introduced briefly ,and on the base of an engineering case ,dynamic elastic-plastic analysis and evaluation of seismic performance of the structure which has used support type energy dissipators in 9 regions have been done. It has been indicated that seismic behavior of the struc-ture would be improved when BRB has been arranged reasonably in structures by the analysis results ,and BRB scheme is a effective way to design based on the structure performance .
出处
《浙江交通职业技术学院学报》
CAS
2016年第2期10-14,共5页
Journal of Zhejiang Institute of Communications
基金
浙江省交通教育科研专项计划项目(2014J07)
浙江省教育厅科研项目(Y201533216)
交通运输部应用基础研究项目(2015319G01170)
关键词
防屈曲耗能支撑
弹塑性分析
9度区
抗震性能
buckling restrained brace
elastic-plastic analysis
9 regions
seismic behavior
