为研究深水桥墩动力特性以及动水压力分布规律,开展了本次墩水耦合振动台试验。通过比较试验结果与ANSYS-CFX计算结果验证了试验数据的有效性。通过数值拟合得到了动水压力沿桥墩截面周边以及水深的变化规律。提出附加刚度法对有水桥墩弹性振动问题进行数值模拟,结果表明:附加刚度法计算结果与试验结果相符,且能较好的解释实验原理;桥墩基频会随着水深的增加而增大,桥墩的响应随着水深的增加而减小;附加刚度法能较好地模拟深水桥梁墩水耦合弹性振动行为。 In order to study the dynamic characteristics of deepwater piers and the dynamic pressure distribution, a shaking table test of coupled pier and water was carried out. The validity of the experimental data is verified by comparing the experimental results with ANSYS-CFX calculations. Through the numerical fitting, the variation of hydrodynamic pressure along the pier periphery and depth is obtained. The additional stiffness method is used to simulate the elastic vibration problem of water piers. The results show that the calculation results of the additional stiffness method are in good agreement with the experimental ones, and the experimental principle can be explained well. The fundamental frequency of piers increases with the increase of water depth, The response of bridge pier decreases with the increase of water depth. The additional stiffness method can simulate the water-coupled elastic vibration of deep-water bridge pier.