(大连市建筑设计研究院有限公司，大连 116021)
［摘要］大连国际会议中心外围护结构的曲面框架通过不同节点方式与屋架、钢平台连接，形成复杂空间整体组合结构。由于建筑物外形设计的多样性，曲面框架本身的形状、边界条件和构造存在相当大的差异。研究了曲面外围护框架中落地部分框架与钢平台的连接节点。这部分框架柱三向倾斜，框架柱面外的无支长度最长超过70m，最短也有60m。由于曲面外围护框架面外刚度薄弱，需要与内部钢平台、屋架拉结，形成空间结构。这种拉结节点的构造要求应考虑曲面框架柱自身的承载能力、连接节点传递力的途径以及相应节点约束控制，达到整体设计要求。
［关键词］新型节点；模型试验；破坏特征；弧形接触；耗能能力
中图分类号：TU392，TU317文献标识码：A文章编号：1002-848X(2012)02-0033-05
Design and experimental study on the new node in Dalian International Conference Center
Wang Guolei，Liu Nan，Wen Hailin，Jiang Yongjun，Wang Lichang，Qu Xinfan(Dalian-Architectural Design & Research Institute Co., Ltd., Dalian 116021, China)
Abstract:The peripheral surface frame of Dalian International Conference Center is connected with roof trusses and steel platform through different nodes, which forms a complex spatial integral combined structure. Due to the diversity of the building exterior design, the shape of curved frame, boundary conditions and the structure have great differences. The connection node between the landing part of curved outer frame and steel platform was studied. The frame column in this part is three-way inclined. The longest length without supporting the cylindrical outer frame column is more than 70m, and the shortest is 60m. Since the curved peripheral retaining frame surface stiffness is weak, it should be connected the the internal steel-platform and roof to form a spatial structure. To achieve the overall design requirements, the carrying capacity of frame column, the joint force transmission way and the corresponding node constraint control should be considered.
Keywords:new node; model test; failure characteristics; arc contact; energy dissipation
作者简介：王国雷，高级工程师，Email:SL132@sina.com。
参考文献
［1］王立长，曲鑫蕃，纪大海，等. 大连国际会议中心结构设计研究综述［J］.建筑结构,2012,42(2):1-6.
［2］完海鹰，周涛. 半刚性节点研究综述及展望［J］. 钢结构, 2006,21(1)：37-40.
［3］MOHAMED A DABAON，MAHMOUND H EL-BOGHDADI, OMNIA F KHAROOB. Experimental and numerical model for space steel and composite semi-rigid joints［J］. Journal of Constructional Steel Research,2009,65(8-9):1864-1875.
［4］张永生. 半刚性节点的实验研究与滞回模型分析［D］.合肥：合肥工业大学,2004.
［5］陈敏. 世博轴阳光谷钢结构新型节点试验研究及有限元分析［D］.杭州：浙江大学,2010.
［6］熊建明. 建筑幕墙结构的设计理论研究［J］. 南昌大学学报,2000,22(4):72-77.
［7］王立长，李东方，韩光翔，等.大连国际会议中心结构分析［J］.建筑结构,2012,42(2):7-14.
［8］大连市建筑设计研究院有限公司，北京工业大学.幕墙柱与大型平台连接新型节点工作性能试验研究报告［R］.2010.
［9］GB 50017—2003钢结构设计规范［S］. 北京:中国计划出版社,2003.
［10］GB 50011—2001建筑抗震设计规范［S］. 2008年版. 北京:中国建筑工业出版社,2008.