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贵州遵义市仁江河大桥为全长364m的三孔预应力混凝土连续刚构桥,跨径组合为98m+168m+98m。本文介绍了该桥施工方案的选择、施工过程中主梁施工块件的划分,论证了主梁合拢过程配重、顶推工况的必要性与重要性,并计算分析了各种工况,最后确定了较为合理的合拢方案。希望为类似桥梁工程的设计提供一定的参考。
The Renjiang River Bridge in Zunyi City of Guizhou Province is a 364m long three-hole prestressed concrete continuous rigid frame bridge with a combined span of 98m + 168m + 98m. This paper introduces the selection of the construction scheme of the bridge, the division of the main girder construction block during the construction process, the necessity and importance of the counterweight and pushing conditions during the closing process of the main girder, and analyzes various working conditions, Finally, a more reasonable closure plan was established. Hope to provide some reference for the design of similar bridge projects.