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广州海心沙公园为2010年亚运会开、闭幕式主会场,主看台采用钢框架结构,罩篷采用带斜拉索的空间网格结构体系。介绍了看台的结构布置,讨论了下部看台的静力弹塑性分析、斜拉罩篷结构的索预应力控制、整体稳定分析,在对下部看台和上部罩篷的整体建模分析基础上,对看台整体结构进行了包络设计、弹性时程分析、楼板弹性应力分析、大震不屈服验算等。总结了新型节点构造,探索了带大跨度悬挑罩篷的看台结构设计方法。
Guangzhou Haixinsha Park is the main venue for the opening and closing ceremonies of the 2010 Asian Games. The main grandstand adopts a steel frame structure and the canopy adopts a space grid structure system with a stay cable. The structural arrangement of the stands is introduced. The static elasto-plastic analysis of the lower stands, the cable prestress control and the overall stability analysis are discussed. Based on the overall modeling analysis of the lower stands and the upper hoods, The overall structure of the stand has been enveloping design, elastic time history analysis, floor elastic stress analysis, earthquake proofing and so on. The structure of a new type of node is summarized, and the design method for the structure of stand with long-span cantilevered canopies is explored.