(广东省建筑设计研究院，广州510010)
［提要］广州大学城中心区体育场东西看台钢顶盖分别采用悬索与网壳结构。东看台顶盖是悬索结构，在设计及施工阶段均进行了仔细的几何非线性内力分析，使得施工得以顺利完成；并采用重混凝土灌注箱梁解决了工程悬索下倾角小、屋盖重量较轻的问题。西看台顶盖网壳结构是较为扁平的壳体，受力较为特别，受温度影响较大，通过设置液体粘滞阻尼器及专门设计的可滑移抗拉球铰钢支座，使结构的温度约束内力大为减小；且存在多管相贯和小角度相贯的圆管节点，通过运用高韧性可焊接铸钢节点，使问题得以解决。
［关键词］广州大学城；中心区体育场；悬索结构；网壳结构
Steel Roof Structure Design of Guangzhou University City"s Central Stadium/Li Kaiping, Liao Xuzhao, Liang Zibiao(The Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China)
Abstract: Two different structure types of suspension structure and mesh shell structure are adopted respectively in the east and west stand roof of Guangzhou university citys central stadium. For suspension structural east stand roof, geometrical nonlinear analysis has been done in design and construction phrase, which made the structure constructed successfully. Heavy concret filled box beam has been designed to solve the problem due to small incline angle cable and light weigh roof. For mesh shell structural west stand roof, force response has some specialties due to flat shell. The force response is affected greatly by temperature action. Fluid viscoelastic dampers and specially designed movable tension sphere pin steel support have been installed to greatly decrease the constraint force induced by temperature action. There are multiple intersected pipe joints and joints of branches with small angle. To solve this problem, high toughness weldable cast steel joints has been used.
Keywords:Guangzhou university city; central stadium; suspension structure; mesh shell structure