按水平弹性支承拱分析拱桥的弹性稳定问题 ,推导出水平弹性支承圆弧拱的稳定特征方程 ,讨论了水平弹性支承对拱的失稳形式和临界荷载的影响 Based on the analysis of the elastic stability of arch bridge with horizontal elastic support arch, the stability characteristic equation of circular arch with horizontal elastic support is deduced, and the influence of horizontal elastic support on the failure mode and critical load of arch