对预应力砼连续梁桥挂篮后退施工方法的分析

对预应力砼连续梁桥挂篮后退施工方法的分析对预应力砼连续梁桥挂篮后退施工方法的分析 摘要：随着我国公路和铁路高速交通事业的进展，需要修建更多的大跨度桥梁以跨越大江河湖泊等进而促进了预应力混凝土连续梁桥的进展。它以受力合理、桥形美观、养护费用低等优点受到广泛的欢迎,预应力混凝土连续梁桥的施工方法很多,有支架现浇法、悬臂浇筑法、悬臂拼装法、顶推法、移动模架法、大型浮吊施工法和旋转施工法等,其中悬臂浇筑法在较大跨径的预应力混凝土连续梁桥中应用最多,因此,讨论大跨径的预应力混凝土连续梁桥悬臂浇筑法有重要的意义。 关键字：预应力砼 连续梁桥挂篮 后退施工 挂篮后退施工 Abstract: with the development of career of our country highway and rail rapid transit, build more long-span Bridges are needed to span great rivers and lakes, etc, in turn, promote the development of prestressed concrete continuous girder bridge. It with force reasonable, beautiful bridge, low maintenance cost advantages has been widely welcomed, prestressed concrete continuous girder bridge construction method are many, have bracket cast-in-situ method, cantilever casting method, cantilever construction method, pushing method, moving die carrier, large floating crane construction method and construction method, etc., of the cantilever method applied in the large span prestressed concrete continuous girder bridge, therefore, the research of the long-span prestressed concrete continuous girder bridge cantilever construction method has important significance. Key words: prestressed concrete continuous girder bridge hanging basket back construction hanging basket back 中图分类号：TU991.01 文献标识码：A 概述 预应力混凝土连续桥梁，因为地形适应性强，设计、施工技术成熟，跨越能力大，造价合理，近年来被广泛采纳。它具有结构受力性能好、变形小、伸缩缝少、行车平稳舒适、造型简洁美观、养护工程量小、抗震能力强等特点。预应力砼连续梁桥挂篮后退施工是一种新式的大型桥梁施工方法，主要在原有的预应力砼连续梁...