以混凝土系杆拱桥的检测为例，阐述了混凝土桥梁可能出现的病害问题，桥梁安全性评估理论、桥梁需要检测的内容以及具体的检测方法。利用测得实际数据资料对桥梁的承载能力进行有限元计算分析，评估现役桥梁的整体工作性能。通过不同工况下的静载试验，结合动力测试，测得其频率，分析了车辆对其的冲击系数。根据相关规范，结合全桥检测资料，给出桥梁评级。%Taking the check on arch bridge with concrete fastening bar as example , the paper expounds the diseases may presented within such bridge , evaluation for bridge safety and check method .Then using the tested information , with the finite element method , analyses the load capacity of bridge .Combining with dynamic test , we get its vibration frequency , and analyze the shock coefficient by vehicles.Finally according to relevant norm , evaluate the safety degree .
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