铸钢件连接钢框架梁柱节点初始转动刚度计算  

Calculating initial rotational stiffness of connection with cast steel connectors in steel frames

作　　者：邵永松[1] 暴伟[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090

出　　处：《华中科技大学学报（自然科学版）》2011年第9期96-101,共6页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家'十一五'科技支撑计划资助项目(2006BAJ01B02-01-04)

摘　　要：提出了一种铸钢件连接钢框架梁柱节点初始转动刚度计算的方法.静载试验研究获得节点变形特性,根据变形特性提出了铸钢件受拉、受弯以及连接的刚度计算模型.采用ANSYS软件进行参数分析,验证该方法的适用性.结果表明:连接的转动变形主要由铸钢件、柱翼缘、柱腹板、螺栓的变形组成,其中铸钢件变形包含受拉和受弯2部分.本方法所得结果与试验结果符合较好,误差在5%以内,与有限元结果对比的标准差为12.6%,可以用于钢框架铸钢件连接节点初始转动刚度的计算,也可用于带肋板连接件的连接节点初始转动刚度的计算.Cast steel connector used in steel frame beam-to-column connection was given and the calcu- lation of initial rotation stiffness of this kind of joint was discussed. The deformation behavior of the joint was studied by static load tests, then the calculation model of cast steel connector in tension, on moment and the hole connection was obtained. By parameter analysis with software ANSYS, applica- bility of the research method was verified. Results show that the rotation deformation of connection mainly consists of the deformation of steel casting, column flange, column web and bolt; especially the deformation of connector is caused by both tension and moment. The proposed method coincides with the test results well and the error rate is limited to 5%. Compared with the finite element analy- sis, the standard deviation is 12.6%, so it could be used to calculate the initial rotation stiffness of beam-to-column connections with cast steel connector or other connectors fastened by stiffener.

关 键 词：铸钢件 钢结构 节点 初始转动刚度 有限元 

分 类 号：TU393.2[建筑科学—结构工程]