哈拉道口拱桥已运营40年,在使用过程中长期处于严重超载的工作状态,桥梁各孔已发生了不同程度的损伤。为了详细了解该桥的破损状况和结构的工作状态,对其进行了病害检查和动力荷载试验。通过病害检测和对基频、冲击系数的的测试和分析,得出该桥的刚度和承载能力已经不满足正常的通车要求,建议该桥拆除重建或者维修加固。 Haladaokou arch bridge has been in operation for 40 years, and has been in a serious overloaded working condition for a long time in use. Various holes in the bridge have suffered different degrees of damage. In order to know more about the damaged condition of the bridge and the working state of the structure, the disease inspection and the dynamic load test were carried out. Through the testing of the disease and the testing and analysis of the fundamental frequency and impact coefficient, it is concluded that the rigidity and carrying capacity of the bridge have not satisfied the normal operation requirements. It is suggested that the bridge be demolished and rebuilt or repaired and reinforced.