广州亚运会开幕式主会场看台结构设计

Design on stand structure of the main venue for Asian Games 2010 in Guangzhou

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。

Haixinsha park is the main venue for opening and closing ceremonies of Asian Games 2010 in Guangzhou.The structure of grandstand is steel frame and cable stayed spatial grid structure system is used in the roof.Several key points of structural design were discussed,including the overall structural arrangement,pushover analysis of the sub-stand,prestress control of the cable and overall stability analysis of the roof.On the basis of the overall modeling of the sub-stand and roof,envelope design,elastic time history analysis,elastic stress analysis of the floor and non-yielding computation under rare earthquake were applied.The new connection design was summarized and structural design method of the stand with large span cantilevered roof was explored.