钢管混凝土主拱肋承载力计算方法的评定

Evaluation of the Methods for Calculating the Bearing Capacity of the Main Arch Rib in Steel-Tube Reinforced Concrete

目前国内钢管混凝土拱桥设计、钢管混凝土拱肋承载力的评定，大多采用容许 应力法进行强度验算。该文对应用此方法和其它钢管混凝土理论作了对比分析、讨论， 通过对轴心受压、偏心受压承载力的计算，对三种计算方法的结果进行了讨论。

Allowable stress is widely employed in China to verify the strength in the evaluation of the bearing capacity of arch ribs of steel-tube reinforced concrete. The authors compared this method with some other theories of steel-tube reinforced concrete and drew appropriate conclusions by calculating the bearing capacities when axis press and eccentric press existed.