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Author : John Lysmer
Publisher :
ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.3/5 (243 download)
Download or read book Vertical Motion of Rigid Footings written by John Lysmer and published by . This book was released on 1965 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Lysmer
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (18 download)
Download or read book Vertical Motion of Rigid Footings written by John Lysmer and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work deals with the vertical mode of vibration of a rigid circular footing resting on a plane soil surface and excited by a vertical time-dependent force in the axis of symmetry. It is assumed that the subsoil can be considered as a perfectly elastic, isotropic, and homogeneous half space. First an approximate theoretical solution is developed for the steadystate motion of the above half-space model. This solution differs from previously published solutions in that it includes all frequencies of excitation. It is then shown how the transient response due to a pulse-type loading can be calculated from the steady-state solution by a simple Fourier technique, and a computer program using this technique is presented. Parallel with the above development it is shown that the elastic half-space model behaves very similarly to a simple damped oscillator, and the author proposes the use of a simplified analog of the mass-spring-dashpot type for practical calculations. The above theoretical results are supported by the presentation of both steady-state and impact tests performed by other researchers. (Author).
Author : Günter Waas
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.3/5 (91 download)
Download or read book Earth Vibration Effects and Abatement for Military Facilities written by Günter Waas and published by . This book was released on 1972 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical method is presented for the analysis of steady-state wave propagation problems in linearly elastic or viscoelastic media of infinite extent. Plane and axisymmetric geometries are considered which consist of a finite irregular region joined to semi-infinite layered regions. By this method, torsional and vertical vibrations of circular footings on, or embedded in, homogeneous and inhomogeneous soil layers over rock are studied. The irregular region is discretized by compatible finite elements, while the semi-infinite layered regions are discretized by subdividing the layers into thin sublayers and by assuming that within each sublayer the displacements vary linearly in the direction normal to the layers. In the direction parallel to the layers, the displacements are expanded into a finite number of plane or axisymmetric propagating and decaying wave modes which are determined by the solution of algebraic eigenvalue problems. Dynamic stiffness matrices are developed which uniquely relate nodal forces to simultaneous nodal displacements at the boundary between the irregular and the layered regions and thus represent the dynamic response of the semi-infinite layered regions.
Author :
Publisher :
ISBN 13 : 9789065622211
Total Pages : 49 pages
Book Rating : 4.6/5 (222 download)
Download or read book The Vertical Motion of Foundations and Pontoons written by and published by . This book was released on 2006 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text collects the papers 'Vertical Vibration of Rigid Bodies on Deep Elastic Strata' and 'A Stoneley-Gibson-Varga Elastic Stratum' that have been published in the journal Heron (2001)). The first chapter offers a survey of the vertical motion of rigid bodies resting on deep elastic strata. Four types of footings are considered: the strip, the circular disk and the embedded semi-cylinder and hemi-sphere. In particular attention has been given to the distinction between compressible and incompressible strata, and to the distinction between low and high frequency factors of the oscillatory motion. The second chapter provides a geometrically non-linear generalization of the Gibson soil. Some remarkable solutions concerning excavations and indented rigid punches are presented.
Author : Carlos A. Brebbia
Publisher : Springer Science & Business Media
ISBN 13 : 3642830129
Total Pages : 184 pages
Book Rating : 4.6/5 (428 download)
Download or read book Applications in Geomechanics written by Carlos A. Brebbia and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first volume of this series dealt with the Basic Principles of Boundary Elements, while the second concentrated on time dependent problems and Volume three on the Computational Aspects of the method. This volume studies the applications of the method to a wide variety of geomechanics problems, most of which are ideally suited for boundary elements demonstrating the potentiality of the technique. Chapter 1 deals with the application of BEM to three dimensional elastody namics soil-structure interaction problems. It presents detailed formulations for rigid, massless foundations of arbitrary shape both in the frequency and time domains. The foundations are assumed to be resting on a linearly elastic, homogeneous, isotropic half-space and be subjected to externally applied loads on obliquely incident body. The chapter reviews the major advances in soil foundation interaction presents a series of numerical results and stresses the practical application of BEM, pointing out the high accuracy and efficiency of the technique, even when using coarse mesh discretizations.
Author : Albert C. J. Luo
Publisher : Springer Science & Business Media
ISBN 13 : 1441957545
Total Pages : 458 pages
Book Rating : 4.4/5 (419 download)
Download or read book Dynamical Systems written by Albert C. J. Luo and published by Springer Science & Business Media. This book was released on 2010-07-17 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamical Systems: Discontinuous, Stochasticity and Time-Delay provides an overview of the most recent developments in nonlinear dynamics, vibration and control. This book focuses on the most recent advances in all three areas, with particular emphasis on recent analytical, numerical and experimental research and its results. Real dynamical system problems, such as the behavior of suspension systems of railways, nonlinear vibration and applied control in coal manufacturing, along with the multifractal spectrum of LAN traffic, are discussed at length, giving the reader a sense of real-world instances where these theories are applied. Dynamical Systems: Discontinuous, Stochasticity and Time-Delay also contains material on time-delay systems as they relate to linear switching, dynamics of complex networks, and machine tools with multiple boundaries. It is the ideal book for engineers and academic researchers working in areas like mechanical and control engineering, as well as applied mathematics.
Author : U.S. Nuclear Regulatory Commission
Publisher :
ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.:/5 (319 download)
Download or read book NUREG/CR. written by U.S. Nuclear Regulatory Commission and published by . This book was released on 1980 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : B. Grigori Muravskii
Publisher : Springer Science & Business Media
ISBN 13 : 3540445730
Total Pages : 377 pages
Book Rating : 4.5/5 (44 download)
Download or read book Mechanics of Non-Homogeneous and Anisotropic Foundations written by B. Grigori Muravskii and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although realistic soil and rock foundations reveal noticeable deviations in their properties from homogeneity and isotropy, the model of the homogeneous isotropie elastic half-space is widely used when studying static and dynamie interactions between a defonnable foundation and structures. This is explained by significant mathematieal difficulties inherent in problems conceming mechanies of anisotropie and heterogeneous elastic bodies. Solving the basic static and dynamie problems for heterogeneous and anisotropic half-spaces, such as different contact problems and problems of constructing Green's functions, has become possible in the last few decades due to the development of computer engineering techniques and numerical methods. This book contains the results of investigations in the area of statics and dynamies of heterogeneous and anisotropic foundations, carried out by the author in the last five years while working in the Faculty of Civil Engineering at Technion - Israel Institute of Technology. The book is directed at engineers and scientists in the areas of soil mechanics, soil-structures interaction, seismology and geophysics. Some characteristic features of the book are: i) Constructing (Chap.l) solutions in a general fonn for the heterogeneous (in the depth direction) transversely isotropic elastic half-space subjected to different loadings, hannonic in time. Characteristics of the given half-space have an influence on functions (of depth z and parameter k of Hankel's transfonns), which are detennined from a system of ordinary differential equations.
Author : W. Allen Marr
Publisher : ASCE Publications
ISBN 13 : 9780784475263
Total Pages : 2392 pages
Book Rating : 4.4/5 (752 download)
Download or read book History of Progress written by W. Allen Marr and published by ASCE Publications. This book was released on 2003-01-01 with total page 2392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sponsored by the Geo-Institute of ASCE This collection of 78 historical papers provides a wide view of the rich body of literature that documents the development of fundamental concepts geotechnical engineering and their application to practical problems. From the highly theoretical to the elegantly practical, the papers in this one-of-a-kind collection are significant for their contributions to the geotechnical engineering literature. Among the writings of more than 60 geotechnical engineering pioneers are several by Karl Terzaghi, widely known as the father of soil mechanics, R.R. Proctor, Arthur Casagrande, and Ralph Peck. Many of these papers contain information as useful today as when they were first written. Others provide great insight into the origins and development of the field and the thought processes of its leaders.
Author : Ahmed K. Noor
Publisher : Elsevier
ISBN 13 : 1483150062
Total Pages : 668 pages
Book Rating : 4.4/5 (831 download)
Download or read book Advances and Trends in Structures and Dynamics written by Ahmed K. Noor and published by Elsevier. This book was released on 2013-10-22 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances and Trends in Structures and Dynamics contains papers presented at the symposium on Advances and Trends in Structures and Dynamics held in Washington, D.C., on October 22-25, 1984. Separating 67 papers of the symposium as chapters, this book documents some of the major advances in the structures and dynamics discipline. The chapters are further organized into 13 parts. The first three parts explore the trends and advances in engineering software and hardware; numerical analysis and parallel algorithms; and finite element technology. Subsequent parts show computational strategies for nonlinear and fracture mechanics problems; mechanics of materials and structural theories; structural and dynamic stability; multidisciplinary and interaction problems; composite materials and structures; and optimization. Other chapters focus on random motion and dynamic response; tire modeling and contact problems; damping and control of spacecraft structures; and advanced structural applications.
Author : Indrajit Chowdhury
Publisher : CRC Press
ISBN 13 : 0203885279
Total Pages : 882 pages
Book Rating : 4.2/5 (38 download)
Download or read book Dynamics of Structure and Foundation - A Unified Approach written by Indrajit Chowdhury and published by CRC Press. This book was released on 2008-12-17 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed to provide engineers with quick access to current and practical information on the dynamics of structure and foundation, this unique work, consisting of two separately available volumes, serves as a complete reference, especially for those involved with earthquake or dynamic analysis, or the design of machine foundations in the oil, gas, a
Author : Jacobo Bielak
Publisher :
ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.:/5 (31 download)
Download or read book Earthquake Response of Building-foundation Systems written by Jacobo Bielak and published by . This book was released on 1971 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cornelius T. Leondes
Publisher : Elsevier
ISBN 13 : 9789056996567
Total Pages : 262 pages
Book Rating : 4.9/5 (965 download)
Download or read book Structural Dynamic Systems Computational Techniques and Optimization written by Cornelius T. Leondes and published by Elsevier. This book was released on 1999 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional seismic design has been based on structural strength in the initial design of structures, resulting in lateral force resisting systems with sufficient strength to be able to absorb and dissipate the seismic. For important structures such as urban high speed road systems, high rise buildings, hospitals, airports and other essential structures which must be quite functional after an earthquake, modern seismic structural design techniques have been developed with a view toward eliminating or significantly reducing seismic damage to such structures. This volume is a comprehensive treatment of the issues involved in modern seismic design techniques for structure with a view to significantly enhancing their capability of surviving earthquakes to an adequate degree, i.e., enhancing the ability of structural systems to withstand high level earthquakes.
Author : U.S. Army Engineer Waterways Experiment Station
Publisher :
ISBN 13 :
Total Pages : 430 pages
Book Rating : 4.:/5 (319 download)
Download or read book List of Publications of the U.S. Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1976 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : University of California, Berkeley. Earthquake Engineering Research Center. Library
Publisher :
ISBN 13 :
Total Pages : 620 pages
Book Rating : 4.:/5 (359 download)
Download or read book Earthquake Engineering Research Center Library Printed Catalog written by University of California, Berkeley. Earthquake Engineering Research Center. Library and published by . This book was released on 1975 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Proceedings Editors
Publisher : Routledge
ISBN 13 : 1351413171
Total Pages : 1044 pages
Book Rating : 4.3/5 (514 download)
Download or read book Structural Dynamics - Vol 1 written by Proceedings Editors and published by Routledge. This book was released on 2022-03-02 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1991. This volume contains the proceedings of the first European Conference on Structural Dynamics (Eurodyne 90) held at the Ruhr University, Bochum, FRG in June 1990. Volume one (169-9) covers impact, dynamic stability, soil dynamics, system identification, earthquake engineering, earthquake engineering R/C structures, and earthquake engineering for steel structures.
Author : J. Lysmer
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (45 download)
Download or read book Dynamic Response of Footings to Vertical Loadings written by J. Lysmer and published by . This book was released on 1966 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
