(华东建筑设计研究院有限公司  上海 200002)
［提要］  特多国家艺术中心为一涉外工程，其钢屋盖部分空间体形十分复杂。钢屋盖的主要承重和抗侧力体系为悬链线拱，拱脚均为铰接。设计时，荷载取值以我国规范为主，并参考国际规范。风荷载由风洞试验确定，并尝试使用风压时程结果直接用于结构设计，而非常规的等效静力风荷载法计算风荷载。
［关键词］  特多艺术中心  钢屋盖  UBC97  风洞试验  悬链线拱
Structural Design of Steel Roof in National Modern Art Performance Center of Trinidad and Tobago/Jiang Wenwei, Bao Lianjin, Huang Yongqiang, Chen Jianxing (East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002,China)
Abstract:The spatial shape of steel roof in the modern art performance center of Trinidad and Tobago is very complicated. Catenary archs are the main systems to support the vertical loads and resist lateral forces. In structural design, loads and load combinations are mainly in accordance with Chinese codes, with reference to international codes such as UBC97. The distribution of wind pressure on the roof is determined by wind tunnel test for its complicated spatial shape.
Keywords:modern art performance center; Trinidad and Tobago; steel roof; UBC97; wind tunnel test; catenary arch