Book•
Dynamic soil-structure interaction
01 Jan 1985-
Abstract: Keywords: Interaction-sol-structure Reference Record created on 2004-09-07, modified on 2016-08-08
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Dissertation•
23 Nov 2005
375 citations
TL;DR: In this article, a simplified three-step procedure is proposed for estimating the dynamic interaction between two vertical piles, subjected either to lateral pile-head loading or to vertically-propagating seismic S-waves.
Abstract: SUMMARY A simplified three-step procedure is proposed for estimating the dynamic interaction between two vertical piles, subjected either to lateral pile-head loading or to vertically-propagating seismic S-waves. The starting point is the determination of the deflection profile of a solitary pile using any of the established methods available. Physically-motivated approximations are then introduced for the wave field radiating from an oscillating pile and for the effect of this field on an adjacent pile. The procedure is applied in this paper to a flexible pile embedded in a homogeneous stratum. To obtain analytical closed-form results for both pile-head and seismic-type loading pile-soil and soil-pile interaction are accounted for through a single dynamic Winkler model, with realistic frequency-dependent ‘springs’ and ‘dashpots’. Final- and intermediate-step results of the procedure compare favourably with those obtained using rigorous formulations for several pile group configurations. It is shown that, for a homogeneous stratum, pile-to-pile interaction effects are far more significant under head loading than under seismic excitation.
363 citations
Book•
01 Jan 1988
TL;DR: In this paper, the procedures to perform nonlinear soil-structure-interaction analysis in the time domain are summarized, where the nonlinearity is restricted to the structure and possibly an adjacent irregular soil region.
Abstract: The procedures to perform nonlinear soil-structure-interaction analysis in the time domain are summarized. The nonlinearity is restricted to the structure and possibly an adjacent irregular soil region. The unbounded soil (far field) must remain linear in this formulation. Besides the direct method where local frequency-independent boundary conditions are enforced on the artificial boundary, various formulations based on the substructure method are addressed, ranging from a discrete model with springs, dashpots and masses to boundary-element methods with convolution integrals involving either the dynamic-stiffness coefficients or the Green's functions in the time domain via the iterative hybrid-frequency-time-domain analysis procedure with the nonlinearities affecting only the right-hand side of the equations of motion.
339 citations
TL;DR: In this article, a displacement-based, symmetric finite-element implementation of the perfectly matched layer (PML) model is presented for time-harmonic plane-strain or three-dimensional motion.
334 citations
Cites background from "Dynamic soil-structure interaction"
...In particular, solution of the elastodynamic wave equation on an unbounded domain finds applications in soil–structure interaction analysis [3] and in the simulation of earthquake ground...
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TL;DR: The present study makes an attempt to gather the possible alternative models available in the literature for the soil–foundation–structure interaction system with computational validity, efficiency and accuracy needed in improved design of important structures.
300 citations
Cites methods from "Dynamic soil-structure interaction"
...Hence it is suggested in the literature [136–144] to model the infinite soil media using boundary element method and the finite structure with finite element method....
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