高强H型钢梁柱弱轴连接节点的极限承载力研究  

Study on ultimate bearing capacity of high-strength H-shaped steel beam column joints with weak axis

作　　者：姜作杰[1] 刘建鑫[1] JIANG Zuojie;LIU Jianxin(School of Architectual Engineering,Hulunbuir University,Hulun Buir 021008,China)

机构地区：[1]呼伦贝尔学院建筑工程学院,内蒙古呼伦贝尔021008

出　　处：《兵器材料科学与工程》2025年第2期92-97,共6页Ordnance Material Science and Engineering

基　　金：校企合作项目(HHX2023-0016);2022年内蒙古自治区重点研发及成果转化项目(2022YFDZ0023);国家教师科研基金“十二五”规划重点课题(CTF120905)。

摘　　要：高强H型钢梁柱的轴向承载力较高,受压时不易屈曲失稳。但其节点作为载荷传递的关键构件,尤其弱轴连接节点承受载荷时易变形和破坏。为此,进行建筑高强H型钢梁柱弱轴连接节点极限承载力研究。制备4种建筑高强H型钢梁柱弱轴连接节点试样(标准型、盖板型、扩翼型、加腋型)。通过低周循环加载试验测试弯矩、转动刚度、承载力等,对比不同弱轴连接节点的承载能力。结果表明:扩翼型H型钢梁柱弱轴连接节点试样的屈服极限高于其他试样,且其梁端峰值载荷、最大承载力均最大,具有更优的抗弯承载性能。研究结果揭示了钢梁柱弱轴节点的受力性能和承载能力,为工程设计和施工提供了参考。The axial bearing capacity of high⁃strength H⁃shaped steel beam column is high,and it is not easy to buckle and lose stability under pressure.However,as the key component of load transfer,its joints are easy to deform and destroy when they bear the load.For this reason,the ultimate bearing capacity of weak axis connection joints of high⁃strength H⁃shaped steel beam column was studied.Four kinds of weak axis joint specimens(standard type,cover type,expanded airfoil type and axillary type)were prepared.The bending moment,rotational stiffness and bearing capacity were tested by low cycle loading test,and the bearing capacity of different weak axis joints was compared.The results show that the yield limit of H⁃shaped steel beam⁃column specimens with weak axial connection is higher than that of other specimens,and the peak load and maximum bearing capacity of the beam end are the largest,so it has better flexural bearing capacity.The research results reveal the mechanical performance and bearing capacity of weak axis joints of steel beam⁃columns,and provide a reference for engineering design and construction.

关 键 词：建筑 高强H型钢梁柱 弱轴连接节点 极限承载力 扩翼型 

分 类 号：TU391[建筑科学—结构工程]