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西宁海湖体育中心由体育场、体育馆和游泳馆组成。其中体育场钢屋盖采用了悬臂三角管桁+单层折面空间网格杂交结构体系,下部看台采用了现浇钢筋混凝土框架-剪力墙结构体系。介绍了钢屋盖的结构选型及布置、构件截面、关键节点的处理措施等结构设计基本情况。介绍了静力计算和稳定性分析内容,对比分析了钢屋盖单体模型与总体模型的差异,给出了解决超长混凝土结构裂缝和温度应力的技术措施。
Xining Hai Lake Sports Center by the stadium, gymnasium and swimming pool. Among them, the cantilever triangular steel pipe truss + single-layer folded surface grid hybrid structure system is adopted for the steel roof of the stadium, and the cast-in-place reinforced concrete frame-shear wall structure system is adopted in the lower stands. This paper introduces the structural design of steel roof, including the selection and arrangement of structures, the cross-section of components and the treatment of key nodes. The contents of static analysis and stability analysis are introduced. The difference between the single model and the overall model of steel roof is analyzed and compared. The technical measures to solve the crack and temperature stress of the ultra - long concrete structure are given.