广东科学中心复杂空间网格结构设计
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（1 中南建筑设计院股份有限公司，武汉 430071； 2 广州大学土木工程学院，广州 510006；3 广东省建筑科学研究院，广州 510006）［摘要］广东科学中心A，B区上部大跨钢屋盖为体型复杂的曲面空间网格结构，曲面高差达41m；中庭透明屋盖上部设有六片宽达9m的巨型遮阳板，风载及风振较大。工程通过风洞试验及风振分析解决了抗风问题。此外，为了满足建筑效果及支撑遮阳板的需要，采用了竖腹杆贯通的新型圆钢筒节点，并对该型节点进行了节点试验和分析；为了抗风需要，支撑网壳的抗拔支座及混凝土柱采用了预应力技术。介绍了该复杂空间网壳结构的造型、布置、节点设计和结构分析。［关键词］网格结构；网壳；圆钢筒节点；风洞试验；风振Structural design on the complex spatial grid structure of Guangdong Science CenterLi Ting1, Chen Xing1, Qian Yi1, Zhang Jichao2, Xu Tianping3(1 Central-south Architectural Design Institute Co., Ltd., Wuhan 430071, China; 2 School of Civil Engineering, Guangzhou University, Guangzhou 510006, China; 3 Guangdong Provincial Academy of Building Research, Guangzhou 510006, China)Abstract:The long-span steel roof in areas A and B of Guangdong Science Center is a complex spatial grid structure with an elevation of 41m. Six 9m wide giant sun visors over the central transparent part bears the action of intensive wind load and wind-induced response, so wind tunnel tests and wind-induced response analysis had been adopted to solve the wind action problem. Besides, considering the architecture and the requirement of the brace for the sun visor, a new type of circular tube steel joint is utilized and a particular joint test and finite element analysis had been conducted. Prestress technic has been used in concrete columns and the anti-pulling bearings of the latticed shell. The structural modeling, layout, analysis and joint design of the complex spatial latticed shell are introduced for design of the structure.Keywords:grid structure; latticed shell; circular tube steel joint; wind tunnel test; wind-induced vibration*广东省科技计划项目(2004B10101048),(2005A11601014),(2006B37301009)；建设部科技计划项目(2005K148),(2006K301),(2007K309)。作者简介：李霆，教授级高工，总工程师， Email:lting@vip.sina.com。参考文献［1］李霆,李宏胜,尹优,等.广东科学中心大跨巨型钢框架结构设计［J］. 建筑结构,2010，40(8).［2］约翰奇尔顿. 空间网格结构［M］. 北京: 中国建筑工业出版社, 2004.［3］李星荣,魏才昂,丁峙NFDA1,等.钢结构连接节点设计手册［M］.北京:中国建筑工业出版社,2005.［4］易和,王良福,张季超,等.广东科学中心的风洞试验研究［J］.建筑技术,2006，37(增刊).
［5］张季超,朱立宏，周云，等.工程灾害防护技术在广东科学中心建设中的研究与应用［J］.工程力学,2006，23(S2):200-209.
