削弱式连接运用在方钢管混凝土柱-钢梁节点上的非线性有限元分析  

NONLINEAR FINITE ELEMENT ANALYSIS FOR CONCRETE-FILLED SQUARE STEEL TUBULAR COLUMN AND STEEL BEAM JOINTS WITH WEAKENED CONNECTIONS

作　　者：蔡叶宏[1] 刘建明[1] 

机构地区：[1]燕山大学建筑工程与力学学院,秦皇岛066004

出　　处：《工业建筑》2007年第z1期471-473,515,共4页Industrial Construction

摘　　要：将削弱式连接与方钢管混凝土柱-钢梁节点结合起来研究,对其进行了非线性有限元分析,得到了在往复荷载作用下削弱式连接节点的应力发展状况、应力分布以及结构塑性铰出现的顺序,并简单介绍了削弱式连接对节点性能的影响。分析表明:削弱式连接的构造形式对节点能起到保险丝的作用。Integrating weakened connections into concrete-filled square steel tubular column and steel beam joints,it is conducted a nonlinear finite element analysis.It is got that the conditions of stress development and the distribution of stress of this connection.In addition,the appearing orders of plastic hinges in this frame under cyclic load are analyzed.At last,the effects of weakened rigid connections on mixed constructions are simply discussed.Analyses show that weakened beam-column connections can be a fuse of joints in mixed constructions.

关 键 词：混合结构 塑性铰 削弱式连接 

分 类 号：TU398.9[建筑科学—结构工程]