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结合国内外已有的索穹顶结构施工张拉成形方法及相关研究成果,以一跨度为100m的索穹顶结构为例,提出了两种结构施工成形方法:中心设置固定塔架仅张拉外圈斜索成形法、中心设置提升塔架索杆原长累计安装成形法,并采用动力松弛法对两种施工成形方法进行了施工成形全过程模拟与分析,重点分析了固定塔架标高与提升高度对结构成形过程中构件内力与位形的影响,为实际工程的张拉施工提供理论依据和技术支持。
According to the existing methods of tensioning and forming of cable dome construction at home and abroad and related research results, taking a cable dome with a span of 100m as an example, two constructional forming methods are proposed: the center is provided with a fixed tower which only stretches the outer ring Inclined cable forming method, the center of the tower crane to set up the original length of the cumulative installation of the formation method, and the use of dynamic relaxation method of construction of the two methods of construction forming the whole process of simulation and analysis, focusing on the fixed tower elevation and lifting height The influence of the internal force and the position of the member during the forming process of the structure provides theoretical basis and technical support for the actual construction of the tensioning construction.