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以一座5×30m空腹式石拱桥为背景,通过对该桥进行外观检查,材质状况与状态参数的测定及荷载试验,基于实测几何线形及材料参数建立考虑拱上结构联合作用的midas有限元模型,将考虑体系温度作用的荷载组合进行拱桥的关键截面强度及拱的整体“强度-稳定”验算,得出该桥承载能力满足设计要求的结论,为该类桥梁的检测评定工作提供技术参考。
Taking a 5 × 30m fast-track stone arch bridge as the background, the midas finite element model considering the joint effect of the arch structure was established by inspecting the appearance of the bridge, the material condition and the state parameters and the load test, based on the measured geometry and material parameters , Taking into account the load combination of system temperature, the key cross-section strength of the arch bridge and the whole “strength-stability” checking of the arch are obtained, and the conclusion that the carrying capacity of the bridge meets the design requirements is provided, providing technologies for the testing and rating work of such bridges reference.