钢筋混凝土拱桥的极限承载力

本文针对大跨度钢筋混凝土拱桥结构在变形、失稳破坏期间产生的几何非线性和材料非线性的特性，采用有限变形理论和混凝土的本构关系，对钢筋混凝土拱桥进行了极限承载力分析，并以钢筋混凝土拱的模型试验结果验证了理论分析结果．

Ultimate bearing capacity of reinforad concrete arch bridges

For long span reinforced concrete arch bridges,it is nonlinear characteristics of material and geometric during its deformation and instability.The ultimate bearing capacity analysis on the basis of the finite deformation theory and the strees-strain relationship of concrete for reinforced concrete arch bridge is presented in this paper.The results of model tests for reiforced concrete arch have shown that the test results were in good agreement with the theoretical analysis.