钢结构梁柱连接节点刚度的半解析测试方法  

SEMI-ANALYTICAL METHOD FOR BEAM-TO-COLUMN CONNECTION RIGIDITY OF STEEL STRUCTURES

作　　者：黄冀卓[1] 王湛[2] 潘建荣[2] 

机构地区：[1]福州大学土木工程学院,福建福州350108 [2]华南理工大学土木工程系,广东广州510641

出　　处：《工程力学》2011年第1期105-109,115,共6页Engineering Mechanics

基　　金：国家自然科学基金项目(50678098)

摘　　要：通过半解析测试方法获取钢结构梁柱连接节点的半刚性特性。在半刚性节点理论分析的基础上,导出了包含节点连接刚度的计算模型;然后通过结合已知的梁端实测荷载和位移试验值,给出了一种有效的求解节点刚度的半解析测试方法。该方法可以克服试验中直接测量节点转角的困难和精度误差,而且与有限元分析结果相比,其计算结果更符合实际真实解。数值算例结果表明,采用该文提供的半解析测试方法获取钢结构梁柱半刚性连接节点M-θ曲线是简单、有效和准确的。A semi-analytical method is provided to predict the behavior of beam-to-column semi-rigid connections of steel structures.A calculation formula of beam-to-column connection rigidity is derived firstly based on the theoretical analysis of semi-rigid connections.With the derived theoretical formula of connection rigidity and a series of experimentally measured values of loads and displacements at the end of beam,an effective semi-analytical method for the prediction of semi-rigid connection rigidity of steel structures is presented.The proposed method can eliminate the difficulties and the accuracy errors in directly measuring the joint rotation angles in the traditional experimental methods,and can predict more actual performance of semi-rigid connections than the finite element method.An example is given to show the simplicity and the accuracy of the semi-analytical method presented for obtaining the M-θ curves of beam-to-column semi-rigid connections of steel structures.

关 键 词：钢结构 半刚性 节点 半解析方法 有限元 

分 类 号：TU317[建筑科学—结构工程] TU391