大跨度钢管混凝土拱桥拱肋吊装施工索力计算方法探讨

The Calculating Method Discussion on the Lifting Construction Cable Force of Longspan Concrete-filled Steel Tubes Arch Bridge and Arch Rib

结合南充市下中坝嘉陵江大桥,选取三种索力计算方法对拱肋吊装施工过程进行仿真分析,通过对计算结果的比较分析,选取一种最方便合理的方法,可供本桥以及类似工程索力计算参考。

Considering the bridge on Jialing River at the dam of medium - and low - height in Nanchong City, three cable force calculating methods are chosen to make a simulated analysis on the working progress of the arch rib lifting. After comparison and analysis of the calculating results, the most convenient and reasonable method is chose, which can be a reference to this bridge or similar project cable force calculation.