Based on the constitutive relation of combinatorial material of concrete filled steel tube(CFST),the calculation analyzes linear and nonlinear reactions of rib arch under static loads.

• 考虑拱肋初始挠度等缺陷的影响,采用钢管混凝土组合材料的本构关系,建立钢管混凝土单圆管肋拱计算模型。