狗骨式连接应用于方钢管混凝土结构的抗震性能研究  

Study on aseismatic capability of concrete-filled square steel tubular column and steel beam joints with dog-bone connections

作　　者：蔡叶宏[1] 刘建明[1] 陈超[2] 赵军[2] 

机构地区：[1]燕山大学建筑工程与力学学院,河北秦皇岛066004 [2]中冶华天工程技术有限公司土建室,安徽马鞍山243000

出　　处：《四川建筑科学研究》2008年第2期152-156,共5页Sichuan Building Science

基　　金：国家自然科学基金资助项目(50508003)

摘　　要：将狗骨式连接与方钢管混凝土柱—钢梁节点结合起来研究,对其进行非线性有限元分析,得到了在往复荷载作用下狗骨式节点的应力发展过程。对节点在未经过削弱处理和经过削弱处理两种情况下的抗震性能进行了全面的分析比较,对相关指标进行了讨论。分析表明,将狗骨式连接应用于钢管混凝土结构是合理的,能明显提高方钢管混凝土柱—钢梁节点的抗震性能,对节点能起到保险丝的作用。Integrating dog-bone connections into concrete-fined square steel tubular column and steel beam joints, we take nonlinear finite element analysis and get stress development and distribution of dog-bone connections under cyclic load. The paper compares aseismatic capability of joints between weakened and unweakened ones, and analyzes correlative indexes comprehensively and systematically. Analyses show that dog-bone style connections are appropriate for concrete-filled steel tubular （CFST） and could enhance the aseismatic capability of this structure. In addition, it could be a fuse of joints in mixed constructions.

关 键 词：混合结构 塑性铰 狗骨式连接 抗震性能 

分 类 号：TU392.3[建筑科学—结构工程]