超宽公路架桥机优化设计与应用:以贵州省新平河特大桥为例
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U445.36

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贵州省科技厅科技支撑计划项目(黔科合支撑[2021] 一般 341)


Optimization and application of bridge erecting machine for ultra-wide highway —Take Xinping River Bridge in Guizhou Province as an example
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    摘要:

    针对在超宽梁架设过程中,由于桥墩的墩顶直径较小,使得前支腿间距过窄,横梁会与架桥机前支腿产生干涉,并且现有架桥机无法满足喂梁和架设要求这一问题,本文提出了超宽公路架桥机前支腿内收的设计方案,成功解决贵州省钢-混桥梁实际施工建设中的技术难点,实现了超宽连续超宽钢主梁的整孔高效架设,并以贵州省都匀至安顺高速公路新平河特大桥铺设为例,进行了有限元分析与现场应力、挠度监测,验证了本文架桥机的结构安全性能,为超宽公路架桥的应用提供参考。

    Abstract:

    In order to solve the problem that the distance between the front legs is too narrow, the beam will interfere with the front legs of the bridge erecting machine, and the existing bridge erecting machine can"t meet the requirements of beam feeding and erection, this paper puts forward a design scheme that the front legs of the bridge erecting machine for super-wide highway are retracted, which successfully solves the technical difficulties in the actual construction of steel-concrete bridges in Guizhou Province and realizes the efficient erection of the whole hole of the super-wide continuous super-wide steel main girder. Taking the laying of Xinping River Bridge on Duyun-Anshun Expressway in Guizhou Province as an example, the finite element analysis and on-site stress and deflection monitoring are carried out, which verifies the structural safety performance of the bridge erecting machine in this paper and provides reference for the application of ultra-wide highway bridges.

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韩洪举,李建勋,郭吉平,等. 超宽公路架桥机优化设计与应用:以贵州省新平河特大桥为例[J]. 科学技术与工程, 2024, 24(17): 7342-7350.
Han Hongju, Li Jianxun, Guo Jiping, et al. Optimization and application of bridge erecting machine for ultra-wide highway —Take Xinping River Bridge in Guizhou Province as an example[J]. Science Technology and Engineering,2024,24(17):7342-7350.

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  • 收稿日期:2023-05-17
  • 最后修改日期:2024-04-01
  • 录用日期:2023-11-14
  • 在线发布日期: 2024-06-24
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