中文摘要：

基于Morison动水理论,提出了作用于高桩承台的动水力简便计算方法,该方法可以应用于深水大跨度桥梁抗震设计.以南京长江三桥南塔基础为原型,利用水中振动台试验,通过对比无水和有水状态时动力荷载作用下的模型试验和计算的结果,验证了动水力简便计算方法的准确性和可靠性,并对影响动水力的主要影响因素进行了重点讨论.

英文摘要：

A simplified calculation method of hydrodynamic force which acts on elevated pile caps was proposed on the basis of the Morison hydrodynamic force theory,and it can be applied to the seismic design of long span deepwater bridges.Shaking table tests of elevated pile caps were performed with the south tower base of the Nanjing Yangtze 3rd River Bridge as a prototype.A comparison between the results of shaking table tests and those of the calculation method under dynamic loads verified the accuracy and reliability of the proposed method.At last,the influencing factors on the hydrodynamic force were discussed.