Simplified dynamic analysis of pile group subjected to horizontal loading

摘要

In the present paper, the behaviour of a pile group foundation subjected to horizontal dynamic loads is analysed by using D-PRAB. The solutions obtained using D-PRAB are compared with the solutions obtained using ADINA and FL AC3D in order to examine the validity of D-PRAB for pile groups. Two kinds of dynamic analysis are conducted for a 4-pile pile group with a rigid cap. In the first type of analysis, external dynamic horizontal load supposing ocean wave in an approximate way is directly applied to the pile cap. In the other type of analysis, earthquakes are applied at seismic bedrock to calculate the responses of the foundation structure.