合肥新桥国际机场T2航站楼钢结构屋盖为大跨空间曲面立体管桁架结构体系,采用了分区累积提升的施工工艺。该屋盖具有结构高差大、主次桁架交叉布置密度大、施工体量大等特点,给结构施工带来了诸多技术挑战。施工过程中,提升分区划分、提升措施设计、施工过程模拟和提升点卸载等环节均对结构的受力状态和成型质量产生影响。对此,本文提出了一种基于结构等高线的分区规划方法,能够保证施工质量和效率的同时,也保证了分区屋盖荷载水平传递的合理性;针对不同的结构布置形式采用多种提升架组合方式,确保屋盖荷载竖向传递的合理性 ...
孙佳兴, 张敏, 贾尚瑞, 邢遵胜
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