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本文针对目前国内常用的网壳内扩安装法，全过程跟踪分析了构件在用内扩法安装期间的施工内力特性及其变化规律，得出了网壳结构设计计算必须考虑施工内力的影响等重要结论。
In this paper, according to the commonly used method of internal expansion of the shell in the country, the characteristics of the internal force of construction and the variation law of the components during the internal expansion method are tracked and analyzed in the whole process, and the influence of the internal force of the construction must be taken into account in the design of the reticulated shell structure. Important conclusions.