［摘要］采用试验的方法对中海广场钢管混凝土柱-钢梁节点的性能进行了研究,得出该种节点的破坏形式、主要力学性能指标以及加强环上的应力分布。试验结果表明该种节点形式的承载力高、延性好，节点区加强环受力均匀，满足“强柱弱梁”的设计原则。对试验节点进行了有限元分析，数值分析结果与试验数据吻合较好，可为推广该节点形式的工程应用提供可靠依据。
［关键词］钢管混凝土柱；节点；试验研究；有限元分析；应力分布
中图分类号：TU317.1文献标识码：A文章编号：1002-848X(2011)09-0131-04
Research on the concrete-filled steel tubular column to steel beam joints of Zhonghai Square
Wei Dong1, Li Bo2, Chen Yi′ou1, Yang Qingshan2, Fan Baofeng2, Li Liang1(1 Beijing Institute of Architectural Design, Beijing 100045, China; 2 School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China)
Abstract:In order to investigate the mechanical behavior, the stress distribution in stiffening rings and the failure mode of concrete-filled steel tubular column to steel beam joints used in Zhonghai Square, the experimental method was conducted. The experimental results indicate that these joints which are new-type anti-seismic connections at present have a superior bearing capacity and good ductility, especially, excellent stress distribution in stiffening rings, which agrees in the ‘strong column-weak beam’ design principle and the results between finite element simulation and experiment take good agreement, which should be deserved to be generalized widely in the similar projects.
Keywords:concrete-filled steel tubular column; joint; experimental investigation; numerical analysis; stress distribution
*北京市建筑设计研究院的BIAD专项科研基金资助。
作者简介：卫东，男，博士，教授级高工，Email:weidong999999@yahoo.com.cn。
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