方钢管混凝土柱-钢梁外加强环节点的受力性能分析  

ANALYSIS OF THE MECHANICAL PERFORMANCE OF STEEL BEAM TO CONCRETE-FILLED SQUARE STEEL TUBE COLUMN CONNECTIONS WITH OUTER STIFFENING RING

作　　者：银英姿[1] 孙绍斐[1] 

机构地区：[1]内蒙古科技大学建筑与土木工程学院,内蒙古包头014010

出　　处：《钢结构》2013年第12期22-25,共4页Steel Construction

摘　　要：基于方钢管混凝土柱-钢梁外加强环节点抗震性能试验,利用通用有限元软件ABAQUS建立试验中4个试件的有限元模型:核心混凝土采用ABAQUS中的混凝土损伤塑性模型,该模型考虑了混凝土在反复荷载下的刚度退化。通过对模型的荷载-位移全过程分析,将计算结果与试验结果对比可知,两者吻合较好,说明用该模型进行方钢管混凝土柱-钢梁外加强环节点的全过程分析是可行的。此外,用该模型分析了不同参数对此类节点荷载-位移曲线的影响规律,可为设计提供依据。Based on the seismic performance test of steel beam to concrete-filled square steel tube column connections with outer stiffening ring, using general finite element software ABAQUS the finite element model of four specimens was set up. Concrete damage plasticity model of ABAQUS was used for core concrete, and the stiffness degradation of concrete under repeated loading was also taken into account. The analysis of all course of load-displacement was carried out, and the analysis results were compared with experimental results, both were in good agreement, which showed that the model of steel beam to concrete-filled square steel tube column connections with outer stiffening ring in the whole process of analysis was feasible. In addition, the model was used to analyze the effect of different parameters on the load-displacement curve, which provided the basis for design.

关 键 词：钢管混凝土 节点 全过程分析 有限元 

分 类 号：TU398.9[建筑科学—结构工程]