BRB-RC框架弹性层间位移角限值的取值探讨

摘要

屈曲约束支撑(Buckling Restrained Brace,BRB)由于其优越的滞回性能,被广泛应用于钢筋混凝土(Reinforced Concrete,RC)框架结构中,然而国内关于屈曲约束支撑混凝土(BRB-RC)框架结构抗震变形验算的研究较为不足.本文基于Perform-3D,通过多遇地震下的构件性能评估,研究BRB-RC框架弹性层间位移角限值的合理取值,给结构设计人员以理论参照.%Due to good hysteretic performance,Buckling Restrained Brace is widely used in reinforced concrete frame structures.However,the current study does not explicitly give the limit of elasticity inter-story drift ratio of BRB-RCframe structures in China.Based onthe software of Perform-3D,this paperstudies the reasonable value of the limit of elasticity inter-story drift ratio of BRB-RC frame through the evaluation of the component performance under the frequent earthquake,which give structural designers some theoretical references.