桥梁上部结构对群桩基础水平承载力影响分析

Impacts of bridge upper structure on the horizontal bearing force of group-piles foundation

基于桩土相互作用原理,采用通用有限元程序ABAQUS软件,对斜拉桥全桥和单塔情况下群桩水平承载力进行了数值模拟分析,结果表明:考虑上部结构对群桩基础的影响,群桩基础抵抗水平荷载作用的能力有所提高。

Based on the principle of pile-soil interaction, using finite element program ABAQUS software, it makes a numerical simulation on the horizontal bearing force of group-piles foundation under the condition of cable-stayed bridge and single-tower. The results show that： after considering the impact of the upper structure on group-pile foundation, piles-group to resist horizontal load capacity can be increased.