带加劲肋的顶底角钢连接梁柱节点的静力性能分析  

Static behavior analysis of top and seat angle with stiffener connection beam-to-column joints

作　　者：郑廷银[1] 毛志伟[1] 张玉[1] 

机构地区：[1]南京工业大学土木工程学院,江苏南京210009

出　　处：《南京工业大学学报（自然科学版）》2008年第5期85-89,共5页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：江苏省建设厅基金资助项目(JS200120);江苏省土木工程与防灾减灾重点实验室基金资助项目(JSCE0602)

摘　　要：为了考察影响腹板双角钢顶底角钢连接的梁柱节点静力性能的因素,采用ANSYS软件对连接进行大量的非线性有限元分析,研究顶底角钢厚度、顶底角钢加劲肋形式及其尺寸、厚度等因素对此连接性能的影响.研究结果表明,设置顶底角钢加劲肋是提高该连接节点静力性能的一项有效措施,而改变顶底角钢加劲肋形式、厚度和高度对节点的初始刚度和极限承载力的影响都不明显.加劲肋形式可以采用三角形,其厚度取为梁腹板厚度,高度宜取顶底角钢内部的高度,并考虑楼面要求可做适量的减少.To investigate the influential factors of the static behavior of top and seat angle with stiffener connection, many nonlinear finite elements were analyzed in this kind of connection by the ANSYS software. The influential factors include the thickness of top and seat angle steel, top and seat angle steel with or without stiffeners, the shape, the thickness, and the size of stiffener of top and seat angle steel and so on. The result shows that the stiffener of top and seat angle is an effective measure to improve the static behavior of the connections, while changing top and seat angle stiffener shape, thickness and height do not affect on the initial stiffness and the ultimate bearing capacity of the joints. The stiffener shape can be triangular and its thickness is better equal to the beam web and so its size, which can be properly reduced by considering the demand for floor construction, can take the size of the top and seat angle interior height.

关 键 词：半刚性连接 加劲肋 非线性有限元 初始刚度 静力性能 

分 类 号：TU391[建筑科学—结构工程]