闵浦二桥主塔下横梁预应力分析及施工技术

Analysis and Construction Technology of Lower Cross Beam Pre-stressing of Main Pylon of Minpu Bridge Ⅱ

上海闵浦二桥工程是一座公轨两用一体化双层特大桥,主桥为独塔双索面连续钢板桁组合梁双层斜拉桥。该文通过理论模拟分析计算,对主塔下横梁施工过程预应力进行了分析,并介绍了其施工技术。

Shanghai Minpu Bridge II Project is a rail-cum-road integrated double-floor super-large bridge.The main bridge is the single-pylon double-plane continuous steel plate truss compound beam double-floor cable-stayed bridge.The article analyzes the pre-stressing in the construction of the lower cross beam of the main pylon by the theoretically simulated analysis and calculation,and introduces the construction technology.