钢管混凝土柱环梁节点非线性有限元分析  

NONLINEAR-FINITE-ELEMENT STUDY ON REINFORCED CONCRETE RING BEAM JOINT FOR CONCRETE-FILLED-STEEL-TUBE COLUMN

作　　者：王彦[1] 戚跃然[1] 

机构地区：[1]湖南科技大学土木工程学院,湖南湘潭411201

出　　处：《钢结构》2013年第2期16-19,共4页Steel Construction

基　　金：湖南省教育厅资助项目(B10007)

摘　　要：采用ANSYS有限元软件建立钢管混凝土柱环梁节点三维实体模型,对节点模型的变形、应力应变情况、开裂状态进行非线性分析。结果表明,有限元分析结果与试验结果吻合较好,指出了环梁破坏的3种形式,并提出适当的框架梁-环梁配筋比可以控制节点破坏形态,对设计此类节点有较好的参考价值。A 3D finite element model of reinforced concrete ring beam joint was established through ANSYS for simulating concrete-filled steel tube joints, the thesis investigates the joints model on the distortion, stress-strain situation and cracking condition. The results show that the finite dement results agree well with those of the test; and the three failure forms of the ring beam were pointed out and the appropriate ratio of frame beam-ring beam reinforcement can control the failure form of nodes, which provide a better reference value for design of similar nodes.

关 键 词：钢管混凝土 环梁节点 非线性有限元 

分 类 号：TU398.9[建筑科学—结构工程]