WIT Press

Nonlinear Seismic Response Of Single Piles

Price

Free (open access)

Paper DOI

10.2495/SD950531

Volume

15

Pages

9

Published

1995

Size

789 kb

Author(s)

N. Makris & D. Badoni

Abstract

A macroscopic model that consists of distributed hysteretic springs and fre- quency dependent dashpots is utilized to model the soil-pile interaction and a practical method based on one dimensional finite element formulation is devel- oped to compute the nonlinear seismic response of single piles. 1. Introduction Realistic modeling of the nonlinear dynamic response of the pile-soil system is very important, especially for the dynamic analysis of highway- bridges, overcrossings and ramps, several of which experienced significant damage in the recent 1994 Northridge earthquake^. While an extremely flexible pile might simply follow the seismic motion of the ground, real piles with finite bending rigidity "resist" the induced soil deformation, generating additional soil strains in their vicinity. As a result, the incident seismic waves are scat

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