西安咸阳国际机场T5航站楼超大面积异形曲面网架提升关键技术研究
大跨异形曲面网架常用于高铁站房、机场航站楼等公共建筑的屋盖结构,考虑其结构特点一般采用提升方式进行施工。然而,对于超大面积异形曲面网架,由于建筑造型各有不同且下部土建结构错层散布,无法采用单一的提升方式进行施工。本文以西安咸阳国际机场T5航站楼项目为背景,介绍了屋盖钢结构的施工思路。针对局部屋盖网架下弦高差大的特点,提出了异速等比同步旋转提升技术,该技术通过理论分析最大化降低了结构的拼装高度,使结构能够绕单轴旋转,减小了旋转提升的操作难度 ...
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