Abstract：
Based on the Potential flow theory, three dimensional finite element model of round-ended hollow piers in deep water and considering pier-water interaction was established. The effects of dynamic water pressure on the natural frequency and dynamic response of bridge piers under different water levels were analyzed, when the bridge pier considering inner water, outland water and the inner water and outland water are considered at the same time. The influencing rules of seismic response of bridge piers were discussed, when the piers with different thickness and under the action of the inner water, outland water or the inner water and outland water are considered at the same time. Research has shown that the natural frequency of bridge pier is decreased and the dynamic response of bridge pier and the pier top displacement are obviously increased when the hydrodynamic effect is considered. The thinner the wall thickness, the influence of seismic response of bridge pier will be increased, and the effect of wall thickness on seismic response of hollow bridge piers is the biggest when the inner water is considered. The influence of inner water on seismic response of bridge piers can not be ignored, and suggested that the inner water and outland water should be considered at the same time in the calculation.
LU Hua-xi,ZHOU Zhen-wei,ZHENg Xiao-hui. Seismic response analysis of round-end hollow bridge piers in deep water
based on Fluid unit method[J]. Architecture Technology, 2017, 48(4): 353-356.
