摘要
三亚体育场屋顶罩棚为不规则支承轮辐式索桁架组合结构,存在新材料应用种类多、工程体量大、组拼安装技术难度大、工程形态复杂、张拉施工技术难度大、索桁架为柔性体系、精度控制难度大、工程构件种类多、施工仿真计算分析复杂等难题。施工过程中应用地面单层索系拼装与连接技术,索桁架提升张拉与空中组装成型同步实施技术,提升张拉过程采用对称分级、主动张拉与被动张拉结合的方法,完成索桁架结构施工,使索桁架结构的力与形达到初始态,实现预期效果。
The roof canopy of Sanya Stadium is an irregularly supported spoke cable truss composite structure. There exist some difficulties such as multiple new materials, large engineering volume, difficult assembly and installation technology, complex engineering form, and difficult tension construction technology, multiple engineering components and complex construction simulation analysis, and the cable truss with a flexible system which is difficult to control precision. In the construction process, the assembly and connection technology of single-layer cable system on the ground was applied, and the synchronous implementation technology of cable truss lifting tension and aerial assembly molding was used. In the lifting tension process, the symmetrical classification, active tensioning and passive tensioning were combined to complete the construction of cable truss structure, so that both the force and shape of the cable truss structure can reach the initial state, achieving the expected effect.
作者
孙玉厚
高文光
张兵
张兰芳
SUN Yuhou;GAO Wenguang;ZHANG Bing;ZHANG Lanfang(Beijing Urban Construction Sixth Group Co.,Ltd.,Beijing 100081,China)
出处
《施工技术（中英文）》
CAS
2022年第17期69-76,共8页
Construction Technology
关键词
体育场
轮辐式索桁架
提升
张拉
空中组装
同步实施
stadiums
spoke cable truss
lifting
tensioning
aerial assembly
synchronous implementation
