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中文摘要：
采用有限元软件ABAQUS对高桩码头的地震反应进行了分析,考虑了桩-土动力相互作用、土体和桩板混凝土的动力非线性特征,分析了码头结构在不同地震作用影响下的相对位移、加速度、剪力和弯矩,确定了结构塑性铰出现的时刻和顺序,从而判明结构的屈服机制、薄弱环节以及可能的破坏类型,并在此基础上提出了设计建议.计算表明,桩的地震加速度响应随着高度的增加先增大后减小,桩身各点相对桩底的位移反应峰值从桩底到桩顶逐渐增大,桩身弯矩从桩底到岸坡面先增大后减小,在岸坡面以上,弯矩先减小后增大,最后在桩顶达到峰值,桩顶部的剪力最大.
英文摘要：
This paper presents nonlinear seismic response analysis of pile-supported wharf structure by using finite element software ABAQUS,with consideration of soil-pile dynamic interaction and dynamic nonlinearities of soil and concrete.And the study is also including analysis of the relative displacement,acceleration,shearing force and bending moment of wharf structure under different accelerations of ground motion,determination of the occurring time and sequence of plastic hinges of piles,and confirmation of the yield mechanism,weak location and failure mode of the structures;and then several structural design recommendations are proposed in the study on the basis of results mentioned above.Calculation results indicate that：（1）peak acceleration response firstly increases and then decreases with the height increasing;（2）peak relative displacements of piles increase gradually from the bottom;（3）the bending moments firstly increase and then decrease from the bottom of piles to the bank slope,however,they are opposite above;（4）at the top of piles the bending moments reach peak values and the shearing forces raise to maximums.
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