半刚接钢框架内填RC墙结构的平面外性能研究  

Out-of-plane behavior of partially-restrained steel frame with RC infill walls

作　　者：胡月华 孙国华[1] 刘文渊[1] Hu Yuehua;Sun Guohua;Liu Wenyuan(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,China;School of Civil Engineering&Transportation,South China University of Technology,Guangzhou 510641,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011 [2]华南理工大学土木与交通学院,广东广州510641

出　　处：《建筑科学》2024年第5期67-77,共11页Building Science

基　　金：国家自然科学基金项目(52078319);江苏省研究生实践创新计划项目(SJCX20-1099)。

摘　　要：为研究半刚接钢框架内填RC墙结构(简称PSRCW)的平面外性能,首先设计了PSRCW结构的BASE基准试件,并衍生钢柱截面、高跨比、轴压比、钢梁加劲肋、内填墙厚度、开洞率等6个系列16个参数模型。采用ABAQUS程序进行了精细化有限元分析,研究了相关参数对PSRCW结构面外承载力、内力分配规律和破坏模式等性能的影响。分析结果表明:钢柱截面、轴压比、钢梁加劲肋是影响PSRCW结构面外承载力的主要因素;高跨比、钢梁加劲肋、内填墙厚度、开洞率对PSRCW结构面外内力分配有较大影响;通过改变高跨比或增设钢梁加劲肋可改进PSRCW结构的面外破坏模式。In order to systematically investigate the out-of-plane behavior of partially-restrained steel frame with RC infill walls(PSRCW),the benchmark model of PSRCW is designed.Subsequently,a total of six series with sixteen FE models are designed,and the effects of the steel column section,height-to-span ratio,axial compression ratio,steel beam stiffener number,RC infill wall thickness and opening rate are considered.The finite element analysis is carried out by using ABAQUS program,and the influence of relevant design parameters on the out-of-plane bearing capacity,the distribution of out-of-plane force,and failure mode of PSRCW are discussed.The analytical results showed that the main influencing factors on the out-of-plane behavior of PSRCW are the steel column section,axial compression ratio,and steel beam stiffener number.The relative parameters,including the height-to-span ratio,steel beam stiffener number,RC infill wall thickness,and opening ratio,significantly affected the internal force distribution of PSRCW.The failure mode of PSRCW is improved through the change of the height-to-span ratio and steel beam stiffener number.

关 键 词：平面外 半刚接钢框架 内填RC墙 有限元分析 

分 类 号：TU398.2[建筑科学—结构工程]