T形方颈单边螺栓连接钢梁-方钢管柱节点试验研究  

Experiment on T-head Square-Neck One-Side Bolted Beam to SHS Column Joints

作　　者：王新华 孙乐乐 王培军[3] WANG Xinhua;SUN Lele;WANG Peijun(College of Engineering Management,Shanxi Vocational University of Engineering Science and Technology,Jinzhong 030619,China;Yantai Research Institute,Harbin Engineering University,Yantai 264003,China;School of Civil Engineering,Shandong University,Jinan 250061,China)

机构地区：[1]山西工程科技职业大学工程管理学院,山西晋中030619 [2]哈尔滨工程大学烟台研究院,山东烟台264003 [3]山东大学土建与水利学院,济南250061

出　　处：《建筑钢结构进展》2024年第12期12-23,共12页Progress in Steel Building Structures

基　　金：国家自然科学基金(52408166);山东省住房城乡建设科技计划项目(2024KYKF-JZGYH101);中央高校基本业务费项目(3072024JJ2701)。

摘　　要：T形方颈单边螺栓是一类新型单侧安装紧固件,可用于闭口截面钢构件连接,其构造简单、安装便利、无需额外的安装辅助工具,能够适应现场粗放的施工方式,具有较大的应用潜力。对4个T形方颈单边螺栓连接钢梁-方钢管柱节点和1个传统螺栓连接节点开展了单调荷载下的静力性能试验研究,探讨了长圆形螺栓孔布置方案以及设置端板加劲肋和钢管柱内灌注混凝土这两种加强措施对节点结构响应的影响。研究了T形方颈单边螺栓连接节点的破坏模式、转角-弯矩关系、关键部位转角-应变关系、各部位屈服顺序等,揭示了此类节点的工作及破坏机理。结果表明此类连接具有与传统螺栓连接节点相似的破坏模式、相近的初始刚度,以及不低于85%的全生命周期内承载力。T-head square-neck one-side bolt(TSOB)is a novel fastener,which can be used for the connection of square hollow steel(SHS)members,with its simple construction,easy installation,no additional aids,can adapt to the rough installation manners in construction site,and has a large application potential.Static performance tests under monotonic load were carried out on four TSOBs bolted beam to SHS column joints and one conventional bolted joint to investigate the effects of the slotted bolt hole arrangements and two strengthening measures,namely endplate stiffeners and filled concrete in SHS columns,on the structural response of the joints.The failure modes,rotationbending moment relationship,rotation-strain relationship at critical positions and yielding sequence of the joint components were investigated to reveal the working and failure mechanism of such joints.The results show that TSOBs bolted beam to SHS column joints have similar failure modes and initial stiffness to conventional bolted joints,and a full life cycle capacity of no less than 85%.

关 键 词：T形方颈单边螺栓 方钢管柱 端板连接 梁柱节点 抗弯性能 

分 类 号：TU391[建筑科学—结构工程]