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采用非线性稳定分析程序 ,考虑施工过程中结构体系不断变化、荷载的逐步增加等因素 ,计算了丫髻沙大桥灌注主拱肋混凝土施工过程中的稳定安全性 ,得出了各施工阶段稳定安全系数。分析比较了采用两种不同的钢管内混凝土施工工序对该大桥结构稳定安全的影响 ,计算结果为大桥施工提供了指导。
Nonlinear stability analysis program was adopted to consider the structural changes in the construction process and the gradual increase of load. The stability and safety of the main arch rib concrete in Yajisha Bridge during construction were calculated. The stability and safety factor . The effects of two different concrete-encased concrete construction procedures on the stability of the bridge structure are analyzed and compared. The calculated results provide guidance for the construction of the bridge.