Deterministic Numerical Modeling of Soil Structure Interaction E-Book
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- Herausgeber: John Wiley & Sons
- Kategorie: Wissenschaft und neue Technologien
- Sprache: Englisch
In order to describe soil–structure interaction in various situations (nonlinear, static, dynamic, hydro-mechanical couplings), this book gives an overview of the main modeling methods developed in geotechnical engineering. The chapters are centered around: the finite element method (FEM), the finite difference method (FDM), and the discrete element method (DEM). Deterministic Numerical Modeling of Soil–Structure Interaction allows the reader to explore the classical and well-known FEM and FDM, using interface and contact elements available for coupled hydro-mechanical problems.
Furthermore, this book provides insight on the DEM, adapted for interaction laws at the grain level. Within a classical finite element framework, the concept of macro-element is introduced, which generalizes constitutive laws of SSI and is particularly straightforward in dynamic situations. Finally, this book presents the SSI, in the case of a group of structures, such as buildings in a town, using the notion of metamaterials and a geophysics approach.
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Veröffentlichungsjahr: 2021
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Table of Contents
Cover
Title Page
Copyright
Introduction
1 Hydro-mechanically Coupled Interface Finite Element for the Modeling of Soil–Structure Interactions: Application to Offshore Constructions
1.1. Introduction
1.2. Governing equations of the interface problem
1.3. Numerical formulation of the element
1.4. Application
1.5. Conclusion and perspectives
1.6. References
2 DEM Approach of the Modeling for Geotechnical Structures in Interaction with Reinforcements
2.1. Introduction
2.2. Discrete modeling
2.3. Application of the DEM to geotechnical structures in interaction with rigid piles
2.4. Application of the DEM to geotechnical structures in interaction with flexible and deformable reinforcement – comparison with experiment results
2.5. Conclusion
2.6. References
3 SSI Analysis in Geotechnical Engineering Problems Using a Finite Difference Method
3.1. Introduction
3.2. The finite difference method using an explicit scheme
3.3. Application of the finite difference method to soil–structure interaction problems
3.4. Some application examples in the geotechnical engineering field
3.5. Conclusion
3.6. References
4 Macroelements for Soil–Structure Interaction
4.1. Introduction
4.2. The concept of generalized forces: Eurocode 8 recommendations
4.3. Macroelements for shallow foundations
4.4. The considered macroelements
4.5. Case study: seismic response of a reinforced concrete viaduct
4.6. Calibration of the macroelements
4.7. Results of the numerical simulations
4.8. Concluding remarks
4.9. References
5 Urban Seismology: Experimental Approach to Soil–Structure Interaction Towards the Concept of Meta-city
5.1. Introduction
5.2. References
List of Authors
Index
End User License Agreement
List of Tables
Chapter 1
Table 1.1.
Stress state in the interface
Table 1.2.
Geometrical parameters:
R
int
, inner radius;
R
out
, outer radius; L, le...
Table 1.3.
Material parameters: E, Young’s modulus;
ν
, Poisson’s ratio; n, poros...
Chapter 2
Table 2.1.
Micro- and macromechanical parameters of the discrete model
Table 2.2.
Micro- and macromechanical parameters of the discrete model
Table 2.3. Micro- and macromechanical parameters of the numerical granular mater...
Table 2.4. Numerical parameters used to reproduce the mechanical behavior of the...
Chapter 3
Table 3.1.
Model parameters (source: from [NUN 13])
Chapter 4
Table 4.1. Shape factors for the bearing capacity of circular, rectangular and s...
Table 4.2.
Description of the constants of the elastoplastic macroelement
Table 4.3.
Description of the constants of the hypoplastic macroelement
Table 4.4.
Geometric characteristics of the structural elements of the viaduct
Table 4.5. Constants of the elastoplastic macroelement adopted in the numerical ...
Table 4.6. Constants of the hypoplastic macroelement adopted in the numerical si...
Chapter 5
Table 5.1. Components of the motion of the soil–structure system, measured for e...
Table 5.2.
Characteristics of modeled structures
.
B
,
H
and
D
respectively repres...
Table 5.3.
Characteristics of the 1D stratified half-space used in the model
.
β
,...
Guide
Cover
Table of Contents
Title Page
Copyright
Introduction
Begin Reading
List of Authors
Index
End User License Agreement
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Series Editor
Marc Boulon
Deterministic Numerical Modeling of Soil–Structure Interaction
Edited by
Stéphane Grange
Diana Salciarini
First published 2021 in Great Britain and the United States by ISTE Ltd and John Wiley & Sons, Inc.
Apart from any fair dealing for the purposes of research or private study, or criticism or review, as permitted under the Copyright, Designs and Patents Act 1988, this publication may only be reproduced, stored or transmitted, in any form or by any means, with the prior permission in writing of the publishers, or in the case of reprographic reproduction in accordance with the terms and licenses issued by the CLA. Enquiries concerning reproduction outside these terms should be sent to the publishers at the undermentioned address:
ISTE Ltd27-37 St George’s RoadLondon SW19 4EUUK
www.iste.co.uk
John Wiley Sons, Inc111 River StreetHoboken, NJ 07030USA
www.wiley.com
© ISTE Ltd 2021
The rights of Stéphane Grange and Diana Salciarini to be identified as the authors of this work have been asserted by them in accordance with the Copyright, Designs and Patents Act 1988.
Library of Congress Control Number: 2021947467
British Library Cataloguing-in-Publication Data
A CIP record for this book is available from the British Library
ISBN 978-1-78630-798-9
Introduction
The deterministic numerical modeling of Soil–Structure Interaction (SSI) uses the tools of Mechanics, and of their transposition, according to the methods of the numerical discretization. An SSI analysis should take into account the differences between the properties of the soil and the structure, possibly leading to local relative displacements. In addition, the presence of water enforces to consider the interaction on the hydro-mechanical framework, involving pore pressures and fluid flow.
Non-deterministic methods, making use of artificial intelligence and progressive learning, are not considered here.
The geotechnical works are usually designed referring to the following three situations:
1) The
pseudo-static case
: where the loadings are nearly time independent (a small number of cycles are accepted).
2) The
cyclic case
: involving a large number of slow cycles (slow versus the time scales of any physical phenomena involved).
3) The
dynamic (mostly seismic) case
: where inertia forces are taken into account.
In the pseudo-static and cyclic cases, the SSI is defined from a local point of view, whereas in dynamic conditions it is examined from a more global angle. The soil–structure interfaces, transfer zones of the loads acting between soil and structure, and often zones of large localized deformations have a significant importance. Special strategies and experimental characterization tests have been developed for describing them.
This volume gives an overview on the main modeling methods developed in geotechnical engineering in order to describe the SSI in various situations:
– The classical and well-known finite element method (FEM) using interface or contact elements available for coupled hydro-mechanical problems and in which the local plastic energy dissipation contributes to the classical global damping.
– The distinct element method (DEM) in which the contact zones between soil and structure are described by local adapted interaction laws.
– The finite difference method (FDM) using explicit algorithm in which interface or contact elements are available and straightforward for coupled hydro-mechanical, highly nonlinear with high deformation and dynamic problems.
– The more recent approaches based on the
macro-element
concept and generalized variables in an incremental form available in static and dynamic situations, where a large volume of soil underlying and surrounding the-structure is represented by a small number of degrees of freedom. This method could be considered as an improved extension of the stiffness coefficient methods known for the piles as the t-z and p-y curves.
– The seismology approach with inertia and viscous equivalent damping forces, in which the SSI is developed between several structures (like buildings in a town) using the notion of meta-materials. This point of view is especially useful when analyzing the movement of the buildings induced by a seismic event at the scale of a town.
