上海中心大厦幕墙支撑结构关键节点分析设计*
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（同济大学建筑设计研究院（集团）有限公司, 上海 200092）［摘要］上海中心大厦采用了分区悬挂的幕墙支撑结构体系，在各类荷载及非荷载效应下，幕墙支撑结构会相对主体结构产生较大的相对位移，主体结构的变形也会在幕墙支撑结构内部产生较大的次应力，为保证幕墙支撑结构正常使用，防止因支撑结构失效造成玻璃破碎，在幕墙支撑结构与主体结构的连接位置创造性地设计了几种特殊节点。对幕墙支撑结构特殊节点的构造及分析、设计情况进行了系统的阐述，重点介绍了竖向伸缩节点及短支撑内端节点两类节点，同时对水平伸缩节点、交叉支撑内端节点、限位约束节点等节点类型也给予简要说明。［关键词］上海中心大厦; 幕墙; 支撑结构; 滑动节点; 节点分析设计中图分类号：TU318，TU973 文献标识码：A 文章编号：1002-848X(2013)24-0012-06Analysis and design of key connection of curtain wall support structure of Shanghai TowerHe Zhijun, Ding Jiemin, Li Jiupeng（Architectural Design & Research Institute of Tongji University (Group) Co., Ltd., Shanghai 200092, China）Abstract: A unique flexible suspend curtain wall support structure (CWSS) was developed to suit exterior curtain wall system of Shanghai Tower. Under various loads and effect，there are lots of relative displacement between main structure and curtain wall and larger additional stress is also produced in CWSS. In order to absorb the relative displacement between the curtain wall system and main structure and ensure safety and service and prevent glass breaking caused by failure of CWSS, a large number of special connections were designed to link the curtain wall and main structure. Several key issues of CWSS such as connection details and difficulties of design and analysis were introduced. Vertical expansion connection and inner end joint of short radial strut were introduced in detail, and some other kinds of connections adopted in CWSS were also introduced briefly.Keywords: Shanghai Tower; curtain wall; support structure; slipping connection; analysis and design of connection*上海市科技攻关计划项目(09dz1207704）。通讯作者：丁洁民，教授，博士生导师，Email:Djm@tjadri.com。参考文献［1］丁洁民，何志军，李久鹏. 上海中心大厦新型柔性悬挂式幕墙系统设计［J］. 建筑结构， 2013，43（24）： 1-5.［2］丁洁民，何志军，李久鹏，等. 上海中心大厦悬挂式幕墙支撑结构设计若干关键问题［J］. 建筑结构， 2013，43（24）：6-11.［3］同济大学钢与轻型结构实验室.上海中心外幕墙体系滑移支座研究报告［R］.2012.［4］李久鹏. 上海中心大厦吊挂式幕墙支撑结构分析与设计若干关键问题研究［D］.上海：同济大学，2013.［5］Dassault Systems Simulia Corp. ABAQUS theory manual［M］. 2010.
