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目前我国开合屋盖系统的发展还处于初始阶段,这方面的设计经验和技术成果较少。结合中国轻纺城体育中心体育场开合屋盖设计中的一些经验及设计关键环节进行介绍。根据该工程固定屋盖跨度大、建筑高度低、结构刚度要求大的特点,介绍了所采用的新型并联式柔性下弦组合桁架结构设计。同时根据浙江地区淤泥质土桩基水平承载力较低的特点,对释放自重产生的水平力进行了简要分析。最后,对开合结构屋盖设计提出几个方面的总结和建议。
At present, the development of open-close roof system in our country is still in the initial stage, and there is less design experience and technical achievements in this respect. Combined with some experience and design key links in the stadium opening and closing roof design of China Textile City Sports Center. According to the characteristics of this project, such as fixed roof span, low building height and large structural rigidity, the new parallel flexible lower chord truss structure design is introduced. At the same time, based on the lower horizontal bearing capacity of silt soil in Zhejiang Province, the horizontal force of releasing self-weight is analyzed briefly. Finally, several aspects of the roof design of open-close structure are summarized and suggested.