(1 湖南大学土木工程学院 长沙 410082；2 湖南城建职业技术学院 湘潭 411101)
[提要] 对实际工程中所采用的T型钢半刚性连接节点性能进行了研究，采用通用的有限元程序ANSYS对节
点性能进行了非线性有限元分析，讨论了节点各组成要素对节点性能的影响。结果表明：柱翼缘厚度、T
型钢翼缘厚度和连接螺栓竖向间距对节点性能影响较大，而柱腹板、T型钢腹板以及连接螺栓水平方向间距对节点性能影响较小，节点破坏主要由柱翼缘和T型钢翼缘控制。研究表明，T型钢梁柱连接节点属于半刚性连接节点，节点的半刚性对钢框架性能影响非常大，设计中不容忽视。
[关键词] T型钢 半刚性连接 非线性有限元分析 弯矩转角关系
Research on the Behavior of T\|stub Semi\|rigid Connections of Steel Frames/Shu Xingping１，Hu Xibing１，Xiong Yao2(1 College of Civ. Engineering,Hunan University,Changsha 410082,China; 2 Hunan Urban Construction College,Xiangtan 411101,China)
Abstract:The research on the behaviors of Tstub semirigid connections applied in some factual projects is done.With the  finite element program ANSYS，the nonlinear analysis to this connection is made，and the effects of its components on its behaviors are discussed.The results show that the thickness of flange of the column and the Tstub and the vertical interval of bolts greatly influence the behaviors of the connections，while
the thickness of the web of the column and the Tstub and the horizontal interval of bolts have little influence on its behaviors.The research shows that this kind of Tstub connections is semirigid one，and the behaviors of semirigid connections will make great effects on the behaviors of steel frames，which can not be neglected to
design the steel frames.
Keywords:T\|stub; semi\|rigid connections; nonlinear finite element analysis; moment\ |rotation relation