钢管混凝土拱圈实现外包混凝土加固的结构分析研究

Structural Analytical Study on Steel Pipe Concrete Arch Rings externally Wrapped with Concrete for Strengthening

集束钢管混凝土拱圈采用外包混凝土加固方法 ,目前国内还没有工程实例 ,为了探索加固过程中的拱圈内力、变形趋势 ,必须结合工程实例作比较全面、仔细的分析 ,以保证结构加固过程的安全。本文正是结合重庆武隆乌江二桥的旧桥改造加固工程做了一些探索性的工作。

So far, there is no engineering example of cluster st eel pipe concrete arch rings externally wrapped with concrete for strengthening in China. In order to comprehend the inner force and displacement of arch rings in the strengthening process, a comprehensive and detailed analysis must be carr ied out based on the engineering examples so that the structure safety can be gu aranteed in the strengthening process. In this paper, some researches carried ou t by authors are introduced based on the rebuilding project of No.2 Wu River Bri dge.