基于桩土相互作用下高桩码头地震响应分析

Seismic Response Analysis of the High-Pile Wharf Based on the Interaction of Piles and Soil

针对桩土相互作用下髙桩码头结构在不同工况下的地震响应情况,利用大型商业软件ABAQUS建立了桩-土-结构有限元模型。在假定桩土之间非线性作用下,对高桩码头在不同地震幅值、土体强度、桩间间距、有无斜桩等工况下进行模拟分析,得到了码头面板及桩的位移和加速度动态响应图。结果表明:码头的地震响应随地震幅值的增大而增强;土体的强度对码头的地震响应影响相对较小;码头结构对码头的地震响应有较大影响。

In order to study the seismic response of the high-pile wharf under the different conditions considering the interaction of piles and soil,a finite element model of the piles-soil-structure is established using the commercial ABAQUS software.Based on the assumption that nonlinear effects between the piles and soil,the simulation analysis of the high-pile wharf is launched under the conditions of different seismic amplitude,intensity of the soil,piles spacing,with or without the inclined piles,and the dynamic response diagram of the displacement and acceleration of the high-pile wharf panel and pile is obtained in this paper.The results show that the seismic response of the wharf increases with the increasing of the seismic amplitude.The structure of the wharf has lager effect on the response of wharf.