［摘要］青岛万邦中心1#楼高度为232.4m，采用钢-混凝土混合结构，整体体系为斜撑框架-核心筒结构。其中，地上层10一个角柱由倒Y形空间斜柱转换结构承托，其受力复杂，节点区焊缝较多，为验证其受力性能，采用两个1∶5缩尺节点模型进行试验研究。结果表明转换节点的核心区未出现明显破坏，主要转换构件处于弹性状态且应力水平较低，主要破坏发生于钢梁端部，说明钢端是节点中的薄弱环节，且受力十分复杂，最终设计加大了梁截面。
［关键词］组合节点；倒Y形斜柱；转换节点；试验研究
中图分类号：TU317.1文献标识码：A文章编号：1002-848X(2011)09-0127-04
Experimental research of spacial joint with the shape of inverted Y in Wanbang Center
Yang Yong1, Chen Binlei1, Fan Jiansheng2, Zhang Yong1, Li Weizheng1 (1 1S1 Studio，Beijing Institute of Architectural Design, Beijing 100045, China；2 Dep. of Civil Engineering , Tsinghua University, Beijing 100084, China)
Abstract:The building 1# of Wanbang Center at Qingdao city is 232.4 meters high, and it is steel-concrete mixing structure. The system is brace frame and core wall structure. A corner column is supported by two inclined columns at 10th floor, which looks like a shape of inverted Y. The joint contains many welding lines and mechanical characteristics are very complicated.  The experimental test to verify the mechanical safety was conducted on scale 1∶5. It is found that the core area of joint is fully good and the main components are in elastic status. The main damage occurred at the end of steel beams. Based on the test results, the section of steel beams was enlarged in the design.
Keywords:composite joint; inclined column with shape of inverted Y; transfer joint; experimental research
作者简介：杨勇，高级工程师，Email:biad1s1@126.com。
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