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大跨径钢箱拱肋整体提升关键技术研究

, PP. 92-97

Keywords: 桥梁工程,整体提升,空间坐标法,钢箱拱肋,节段拼装

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Abstract:

针对拱肋整体提升的施工工艺、钢箱拱节段拼装空间坐标计算、整体提升的设计进行了研究。通过优化钢箱拱肋合龙临时措施,在合龙前进行测量及嵌补段板件配切,验算嵌补段最不利工况下临时措施构件的强度,确保合龙段临时措施安全可靠。结果表明,拱肋整体吊装提升施工可以有效地节约施工工期和成本,提高安装精度,有效确保了安装工程质量,为同类型桥梁的施工和设计提供了一定的理论基础和经验。

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