根据铰缝在装配式板桥传递荷载的作用,通过数值计算方法模拟了装配式板桥在铰缝损伤后的瞬态动力学响应,比较分析了不同损伤程度、不同动荷载加载位置下各板跨中加速度幅值,提出利用多次冲击实验下各板加速度幅值比之差值作为铰缝损伤的评定依据的识别方法,并分析了这种方法的可行性。 According to the role of the hinge joints in the load transfer of the assembled slab bridge, the transient dynamic response of the assembled slab bridge after the joint damage was simulated by numerical calculation. The damage degree of the assembled slab bridge was compared and analyzed. Based on the magnitude of the mid-acceleration, this paper proposes a method to recognize the difference between the amplitude amplitudes of the plates under multiple impact tests, and analyzes the feasibility of this method.