京沪高铁濉河特大桥连续梁0号块托架法施工

Construction of continuous beam No.0 on Suihe Bridge of Jing-Hu high-speed railway with bracket method

指出大跨度高墩连续梁采用悬臂灌注法施工时,0号块的施工是整个悬臂施工的关键技术,以京沪高铁濉河特大桥为例,分析了0号块托架法施工技术的要点,主要包括托架结构选型,托架检算及托架拼装预压方法,对同类桥梁的施工具有一定的参考价值。

This paper points out the No. O is the critical technique in total cantilever construction while using cantilever casing method on largespan high pier with continuous beam. Taking extra Suihe Bridge on Jing-Hu high-speed railway as an example, the paper analyzes the main construction technique points of No. O bracket method including bracket structure selection, bracket check, and bracket assembling and preloading, which has certain referring value for similar bridge construction.