削弱梁端的方钢管混凝土柱-钢梁栓焊连接节点的有限元分析  

NONLINEAR FEM ANALYSIS OF CONCRETE-FILLED SQUARE TUBE COLUMN AND STEEL BEAM CONNECTIONS WITH REDUCED BEAM SECTIONS

作　　者：周天华[1] 王秀梅[1] 叶武[1] 周丽红[1] 

机构地区：[1]长安大学建筑工程学院,西安710061

出　　处：《工业建筑》2007年第z1期559-562,496,共5页Industrial Construction

基　　金：陕西省自然科学基金资助(2004E205)

摘　　要：对内隔板式方钢管混凝土柱-钢梁栓焊连接节点提出了三种新型的梁端削弱方式,应用通用程序ANSYS对其进行三维非线性有限元分析,将计算结果与无削弱节点、狗骨式节点的分析结果进行对比。研究结果表明:翼缘开孔和翼缘腹板同时开孔的削弱方式能使梁端塑性铰明显外移,防止连接节点脆性破坏,可供实际工程设计参考。Three new forms of reducing beam section to square concrete-filled steel tubular column and steel beam connections with internal diaphragms are presented.These new joints are analyzed using FEM program-ANSYS,whose analytical results are compared with those of basic element and dog-bone connection.The results show that connection with opening on flange and connection with opening on flange-web can shift the plastic hinges away from the beam-column interface and prevent them from fragile damaging.So they can be served as reference for practical engineering design.

关 键 词：方钢管混凝土柱 梁柱栓焊节点 削弱梁端 有限元分析 

分 类 号：TU398.9[建筑科学—结构工程]