Nonlinear analysis concrete filled steel tubular arches' mechanical property was researched.The appropriate constitutive equation was selected. 摘要对一个模型拱进行了非线性分析，研究了钢管混凝土拱的力学性能。
With the same steel ratio, square CFT is compared with circle CFT in bearing resistence and load-deformation curves. 在含钢率相同情况下，与圆钢管混凝土比较承载力以及荷载位移曲线的差别。
