屈曲约束型钢框架节点抗震性能研究综述  

Research Review on the Seismic Performance of Buckling-Restrained Steel Frame Joints

作　　者：冯玉龙 朱毅 种迅[1] 蒋庆[1] 韦明途 FENG Yulong;ZHU Yi;CHONG Xun;JIANG Qing;WEI Mingtu(College of Civil Engineering,Hefei University of Technology,Hefei 230009,China;Anhui Architectural Design and Research Institute Co.,Ltd.,Hefei 230002,China)

机构地区：[1]合肥工业大学土木与水利工程学院,合肥230009 [2]安徽省建筑设计研究总院股份有限公司,合肥230002

出　　处：《建筑钢结构进展》2022年第12期1-11,21,共12页Progress in Steel Building Structures

基　　金：中央高校基本科研业务费专项资金(JZ2019HGTB0086)。

摘　　要：屈曲约束支撑采用约束单元限制核心单元的侧向屈曲变形,避免其受压发生整体屈曲,使支撑在受压时可达到全截面屈服,进而提高支撑的受压承载力、延性和耗能能力。钢框架节点中也含有受压板件,其屈曲会限制节点的延性和耗能能力,目前已有学者提出将上述屈曲约束理念引入到钢框架节点中。对屈曲约束型钢框架节点抗震性能研究进展进行了综述,将梁柱节点归纳为附加屈曲约束件节点、屈曲约束翼缘连接节点和屈曲约束狗骨式节点三类;对屈曲约束型柱脚节点的研究相对较少,进行了单独综述;讨论了附加在钢框架节点中的屈曲约束件的构造和设计方法。最后,对屈曲约束型钢框架节点研究进行了总结与展望。Buckling-restrained braces use a restraint element to limit the lateral buckling deformation of the core element and prevent global buckling under compression. This allows the braces to achieve an entire section yield under compression and enhances their compressive bearing capacity, ductility, and energy dissipation capacity.Additionally,steel frame joints feature compressed plates whose buckling will limit the joints’ ductility and energy dissipation capacity. Some academics have proposed incorporating the concept of buckling restraint into the joints. In this paper,the research progress of buckling-restrained steel frame joints is examined,with the beam-column joints classified into three categories:additional buckling-restrained member joints,buckling-restrained flange joints,and buckling-restrained dog-bone joints. Few studies on buckling-restrained column base joints are reviewed individually due to their scarcity. The configuration and design procedures of additional buckling-restrained members in bucklingrestrained steel frame joints are described. In conclusion,a summary and outlook for the studies of the buckling-restrained steel frame joints are provided.

关 键 词：屈曲约束 梁柱节点 柱脚节点 研究综述 抗震性能 

分 类 号：TU352.1[建筑科学—结构工程]