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福州海峡奥林匹克体育中心体育馆屋盖采用四边形环索空间弦支双向网格结构,具有跨度大、结构复杂、拉索张拉力大、张拉控制精度要求高等特点。根据结构特点及有限元分析结果,采用从外到内,分级同步张拉的施工方案。结合现场条件采用有效的安装方式,针对结构节点构造设计出合理的张拉工装,解决了高空安装与张拉的施工难点,实现了结构荷载的有效传递。通过仿真结果分析、拼装精度控制、索长误差调整等实现了结构形态的精确控制。
Fuzhou Strait Olympic Sports Center Gymnasium roof quadric ring cable space chord two-way grid structure, with a large span, complex structure, tension cable tension, tension control precision higher requirements. According to the structural characteristics and the results of finite element analysis, using the construction plan from outside to inside and grading synchronous tensioning. According to the site conditions, an effective installation method is adopted, a reasonable tensioning tool is designed according to the structure node structure, the construction difficulty of high altitude installation and tensioning is solved, and the effective transfer of structural load is realized. Through the simulation results analysis, the assembly accuracy control, the rope length error adjustment and so on has realized the precise control of the structure form.