In this study, in order to accurately evaluate the cumulative impact damages undergone by concrete piers, lateral impact testing of reinforced concrete piers was carried out using an ultra-high drop hammer test system to impose damages. Then, modal frequency tests of the impacted piers were conducted one by one. It was found that, according to such parameters as the reinforcement stress and strain levels, crack widths, column top displacements, and so on, which had been obtained from experimental results, and based on the existing research results and codes, the evaluation criteria of the cumulative impact damages of reinforced concrete piers based on modal frequencies could be proposed for the bending failure components. In addition, it was confirmed that when the aforementioned evaluation criteria was adopted, timely nondestructive testing could be effectively conducted for damaged piers, and the status of the piers could be quickly determined in order to ensure the safety of passing vehicles.

在这项研究中，为了准确评估混凝土墩墩遭受的累积冲击破坏，使用超高落锤试验系统对钢筋混凝土墩墩进行了侧面冲击试验，以施加破坏。然后，对受影响的墩墩进行模态频率测试。结果发现，根据实验结果并根据现有的研究结果和规范，根据钢筋的应力和应变水平，裂缝宽度，柱顶位移等参数，对混凝土的评价标准为：针对模态频率，可以提出基于模态频率的钢筋混凝土墩的累积冲击损伤。另外，确认了采用上述评价基准时，