SEISMIC RESPONSE ANALYSIS OF RC PILE FOUNDATION-SOIL COUPLED SYSTEM USING 3D NONLINEAR FINITE ELEMENT METHOD

Abstract

Seismic response analysis of reinforced concrete pile foundation-soil coupled system was conducted using full-3D nonlinear finite element method. Detailed response and damage of pile foundation were investigated by comparing the result from 3-D dynamic analysis with those obtained by 3-D static pushover analysis and 2-D FE dynamic analysis. The static analysis gave different results in terms of deformation, damage and sway-rocking behavior of foundation. In addition, it was clarified that the two-dimensional model with a thickness equal to the width of footing give almost an equivalent result to the three-dimensional model.