文献类型：期刊文献

中文题名：刚度比对屈曲约束支撑装配式混凝土框架双重体系抗震性能的影响

英文题名：EFFECT OF STIFFNESS RATIO ON THE SEISMIC BEHAVIOR OF BRB-PREFABRICATED CONCRETE FRAME DUAL SYSTEM

作者：谢钦 沈榕

第一作者：谢钦

机构：[1]贵州理工学院土木工程学院,贵阳550003;[2]东南大学混凝土及预应力混凝土结构教育部重点实验室,南京210096

第一机构：贵州理工学院土木工程学院

年份：2020

卷号：50

期号：1

起止页码：28-33

中文期刊名：工业建筑

外文期刊名：Industrial Construction

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2019_2020】；

基金：国家重点研发计划资助项目(2018YFC0705);国家自然科学基金资助项目(51878150);贵州理工学院高层次人才科研启动经费项目(XJGC20190907)

语种：中文

中文关键词：装配式混凝土框架;屈曲约束支撑;双重体系;刚度比;抗震性能

外文关键词：prefabricated concrete frame;buckling-restrained brace;dual system;stiffness ratio;seismic behavior

摘要：针对由装配式混凝土框架(PCF)和屈曲约束支撑(BRB)体系组成的BRB-PCF双重体系,建立不同层数结构的有限元分析模型,并采用非线性动力时程分析方法,研究了刚度比(即BRB体系与PCF体系的抗侧刚度之比)k对结构抗震性能的影响。结果表明:在PCF体系中适当地布置BRB能够减小结构的最大层间位移角和梁、柱构件的损伤程度,提高结构的震后修复效率;当刚度比较小时,增大k能提升结构的抗震性能,但当k≥1.5时,继续增大k对结构抗震性能的提升较小,建议合理的刚度比范围为k≤1.5。
Aiming at the dual system composed of prefabricated concrete frame(PCF)and buckling restrained brace(BRB)system,the finite element analysis models of different story structures were established,and the influence of stiffness ratio(i.e.the lateral stiffness ratio of BRB system to PCF system)k on the seismic behavior of the structure was studied by using nonlinear dynamic time-history analysis method.The results showed that the proper arrangement of BRB in PCF system could reduce the peak story drifts of the structure and the damage degree of beam and column members,and improve the post-earthquake repair efficiency of the structure.When the stiffness ratio was small,increasing k could improve the seismic behavior of the structure,but when k≥1.5,increasing k would improve the seismic behavior of the structure less,and the reasonable range of stiffness ratio was suggested to be k≤1.5.