［摘要］青岛万邦中心1#楼高度232.4m，采用钢-混凝土混合结构，体系为混合斜撑框架-核心筒结构。其中，型钢混凝土柱-钢梁-钢斜撑节点为本工程典型节点，受力复杂，对两个1∶4缩尺节点模型进行了试验研究。结果表明，节点核心区在低周往复试验下基本完好，未发生明显剪切破坏；通过对节点的承载力、延性、耗能能力、变形能力的分析评估表明，节点具有良好的承载能力、延性、耗能能力。
［关键词］型钢混凝土柱；钢斜撑；低周往复荷载试验；抗震性能
中图分类号：TU398.7文献标识码：A文章编号：1002-848X(2011)12-0096-05
Experimental research on steel reinforced concrete column-steel beam-steel brace joints in Qingdao Wanbang Center
Yang Yong1, Chen Binlei1, Fan Jiansheng2(1 1S1 Studio，Beijing Institute of Architectural Design, Beijing 100045, China；2 Key Laboratory of Structural Engineering and Vibration of China Education Ministry, Tsinghua University, Beijing 100084, China)
Abstract:An experimental research was conducted on seismic behavior of steel reinforced concrete column-steel beam-steel brace composite joints, in order to support the design of  Qingdao Wanbang Center. The building 1# of Qingdao Wanbang Center is 232.4 meters high, which is steel-concrete composite structure. The system is composite brace-frame and core wall structure. The steel reinforced concrete column-steel beam-steel brace joint is very typical in the project, which is very complicated on mechanics. The experiment contains two models which are 1∶4 on scale. It is found that the core area of joint is fully good and shear failure does not occur in core area of joint. Strength, ductility, energy-consuming capacity and deformation property were comprehensively evaluated based on the results of low cyclic reversed  loading tests on two models. The satisfying seismic behavior of steel reinforced concrete column-steel beam-steel brace composite joints was verified by the test results. The experimental results on joint strength and anti-seismic performance, destructional modes and characteristics were introduced.
Keywords:steel reinforced concrete column; steel brace; low cyclic reversed loading test; seismic behavior
作者简介：杨勇，硕士，高级工程师，一级注册结构工程师，Email:biadms_structure@126.com。
参考文献
［1］杨勇,陈彬磊,李文峰,等.青岛万邦中心1#楼超高层特殊结构体系研究与设计［J］.建筑结构,2008,38(1):83-87.
［2］ 杨勇,陈彬磊,李伟政,等.青岛万邦中心单向斜撑外框剪力墙结构体系研究及节点试验研究科研结题报告［R］.北京：北京市建筑设计研究院，2008.
［3］ 唐九如.钢筋混凝土框架节点抗震［M］.南京:东南大学出版社,1989.
［4］ GB 50152—92 混凝土结构试验方法标准［S］. 北京:中国建筑工业出版社,1992.
［5］ 朱伯龙.结构抗震试验［M］.北京:地震出版社,1989.
［6］ JGJ 101—96建筑抗震试验方法规程［S］. 北京:中国建筑工业出版社,1996.