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［摘要］青島萬(wàn)邦中心1#樓高度232.4m，采用鋼-混凝土混合結(jié)構(gòu)，體系為混合斜撐框架-核心筒結(jié)構(gòu)。其中，型鋼混凝土柱-鋼梁-鋼斜撐節(jié)點(diǎn)為本工程典型節(jié)點(diǎn)，受力復(fù)雜，對(duì)兩個(gè)1∶4縮尺節(jié)點(diǎn)模型進(jìn)行了試驗(yàn)研究。結(jié)果表明，節(jié)點(diǎn)核心區(qū)在低周往復(fù)試驗(yàn)下基本完好，未發(fā)生明顯剪切破壞；通過(guò)對(duì)節(jié)點(diǎn)的承載力、延性、耗能能力、變形能力的分析評(píng)估表明，節(jié)點(diǎn)具有良好的承載能力、延性、耗能能力。
［關(guān)鍵詞］型鋼混凝土柱；鋼斜撐；低周往復(fù)荷載試驗(yàn)；抗震性能
中圖分類號(hào)：TU398.7文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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
作者簡(jiǎn)介：楊勇，碩士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:biadms_structure@126.com。
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