高烈度区1000MW机组钢结构主厂房BRB消能减震方案研究  

Study of structural scheme BRBs for 1 000MW power plant building in highly seismic region

作　　者：徐吉民[1] 高向宇[1] 王勇强[2] 尹学军 

机构地区：[1]北京工业大学,北京100124 [2]华北电力设计院工程有限公司,北京100120 [3]青岛科而泰环境振动控制技术有限公司,山东青岛266061

出　　处：《武汉大学学报（工学版）》2013年第S1期74-78,共5页Engineering Journal of Wuhan University

摘　　要：对高烈度区1 000MW机组钢结构主厂房的结构选型进行了研究.简要介绍了防屈曲支撑(BRB)的构成和消能减震体系的耗能工作机理,针对高烈度区主厂房钢结构提出了BRB构造的建议.通过结构计算和非线性有限元分析,验证了消能减震体系在钢结构主厂房结构中的消能减震效果和简便实用的支撑替换方法的有效性.对替换前后结构抗震性能和非线性反应的对比分析表明,建议方案可行,并具有一定的经济性.A structure scheme with buckling-restrained braces(BRBs)for 1 000MW power plant in highly seismic region is proposed.With short introduction to BRB and the principle of seismic reduction with it,some suggestions are put forward to proper construction details of BRB according to the characters of power plant structure.The energy dissipation mechanism,seismic reduction effect of the scheme,as well as the alternative and majorized method for the braces are proved through structural calculation and nonlinear finite element analysis.It is revealed that the scheme is feasible with a certain economic benefit through a series of comparisons with both traditional brace and BRB.

关 键 词：防屈曲支撑 厂房 耗能减震 

分 类 号：TU391[建筑科学—结构工程] TU352.11