Download or read book Inelastic Analysis of Soil structure Interaction System written by Mohammed Abdulla Ismail AL-Gorafi and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Inelastic response of a framed structure is significantly different from the elasctic response. Inelastic response can identify the possible locations of distress in a building as wall as its failure. It also generates useful information such as maximum deformation, forces at important locations and the ductility requirements. Inelastic analysis of 2D frames iw well reported by many researchers using either lumped plasticity models or detailed finite elements models. Soil-structure interaction is another important element for a more accurate prediction of stresses in both the structure and the supporting soil. Many strutural models were developed and used to solve the soil-structure interaction problems. At microscopic level, finite element method is used to model both the frame structure and soil media. Most of the analyses presented in the literature focused on soil-structure interaction within elastic range of loading. Very limited research focuses on the effect of nonlinearity and inelasticity of soil on the stuctural response. This study covers the effect of the interaction analysis on the structural inelasticity, moment redistribution and failure mode of a 2D reinforced concrete frame considering nonlinear behaviour of the soil media. The study futher highlights the effect of different foundation-soil relative stiffness and the rigidity of beam-column joint on the inelastic response of the frame soil system. Finite element method intergrated with stifness matrix method is used to analysze the frame-foundation-soil system under combined vertical and lateral loading. A computer code is developed to trace the inelastic response of frame-foundation-soil system. The developed code predicts the sequential formation of plastic hinges in the frame member and the continous deterioration of the stiffness of the frame and soil media. The failure criteria used was based on actual nonlinear analysis of reinforced concrete section. The 2D beam element is used to model the frame members and the combined footing. The beam is assumed to retain elastic property while the inelastic property is assumed to be lumped at the ends of the beam in a form of a plastic hinge. The inelastic property is evaluated considering the actual behaviour of the reinforced concrete section, the stiffness deterioration of the frame members with the loading history, and the behaviour of the yielded section. The actual non-linear behaviour of reinforced concrete sections is carried out so that a 2D yield surface has been evolved. The formation of 2D plastic hinges in a member is based on the interaction of actual moment-axial force in the section.plane strain 4-noded element was implemented to model the underlying soil. The stiffness of the soil was formulated using the usual finite element method. The degradation of the soil stiffness with the increase of the stress level was carried out using tangent modulus pf elasticity derived form hyperbolic stress-strain model. The results indicate that the non-interaction elastic analysis underestimates the moment at different beams and columns compared to the interaction elastic analysis. Extanding the analysis to the inelastic range will further significantly alters the bending moment diagrams and the percentage increase or decrease in the bending moments compared to inelastic non interaction analysis. Furthermore, the inelastic analysis does not only alter the sequential formation of the plastic hinges in the frame but it will also alter the load factors at which these hinges occurs, and number of plastic hinges and their locations compared to non-interaction analysis.

Download or read book Developments in Dynamic Soil Structure Interaction written by Polat Gülkan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the last couple of decades it has been recognized that the foundation material on which a structure is constructed may interact dynamically with the structure during its response to dynamic excitation to the extent that the stresses and deflections in the system are modified from the values that would have been developed if it had been on a rigid foundation. This phenomenon is examined in detail in the book. The basic solutions are examined in time and frequency domains and finite element and boundary element solutions compared. Experimental investigations aimed at correlation and verification with theory are described in detail. A wide variety of SSI problems may be formulated and solved approximately using simplified models in lieu of rigorous procedures; the book gives a good overview of these methods. A feature which often lacks in other texts on the subject is the way in which dynamic behavior of soil can be modeled. Two contributors have addressed this problem from the computational and physical characterization viewpoints. The book illustrates practical areas with the analysis of tunnel linings and stiffness and damping of pile groups. Finally, design code provisions and derivation of design input motions complete this thorough overview of SSI in conventional engineering practice. Taken in its entirety the book, authored by fifteen well known experts, gives an in-depth review of soil-structure interaction across a broad spectrum of aspects usually not covered in a single volume. It should be a readily useable reference for the research worker as well as the advance level practitioner. (abstract) This book treats the dynamic soil-structure interaction phenomenon across a broad spectrum of aspects ranging from basic theory, simplified and rigorous solution techniques and their comparisons as well as successes in predicting experimentally recorded measurements. Dynamic soil behavior and practical problems are given thorough coverage. It is intended to serve both as a readily understandable reference work for the researcher and the advanced-level practitioner.

Download or read book Soil Foundation Structure Interaction written by Rolando P. Orense and published by CRC Press. This book was released on 2010-07-20 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil-Foundation-Structure Interaction contains selected papers presented at the International Workshop on Soil-Foundation-Structure Interaction held in Auckland, New Zealand from 26-27 November 2009. The workshop was the venue for an international exchange of ideas, disseminating information about experiments, numerical models and practical en

Download or read book Soil Plasticity written by W.F. Chen and published by Elsevier. This book was released on 1985-11-01 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is addressed primarily to civil engineers familiar with such traditional topics as strength of materials, soil mechanics, and theory of elasticity and structures, but less familiar with the modern development of the mathematical theory of soil plasticity necessary to any engineer working under the general heading of nonlinear analysis of soil-structure system. This book will satisfy his needs in the case of the soil medium.It introduces the reader to the theory of soil plasticity and its numerical implementation into computer programs. The theory and method of computer implementation presented here are appropriate for solving nonlinear static dynamic problems in soil mechanics and are applicable for finite difference and finite element computer codes. A sample computer model subroutine is developed and this is used to study some typical soil mechanics problems.With its comprehensive coverage and simple, concise presentation, the book will undoubtedly prove to be very useful for consulting engineers, research and graduate students in geotechnical engineering.

Download or read book Deterministic Numerical Modeling of Soil Structure Interaction written by Stephane Grange and published by John Wiley & Sons. This book was released on 2021-12-22 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Dynamic Soil structure Interaction written by John P. Wolf and published by Prentice Hall. This book was released on 1985 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seismic Analysis of Structures written by T. K. Datta and published by John Wiley & Sons. This book was released on 2010-03-16 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: While numerous books have been written on earthquakes, earthquake resistance design, and seismic analysis and design of structures, none have been tailored for advanced students and practitioners, and those who would like to have most of the important aspects of seismic analysis in one place. With this book, readers will gain proficiencies in the following: fundamentals of seismology that all structural engineers must know; various forms of seismic inputs; different types of seismic analysis like, time and frequency domain analyses, spectral analysis of structures for random ground motion, response spectrum method of analysis; equivalent lateral load analysis as given in earthquake codes; inelastic response analysis and the concept of ductility; ground response analysis and seismic soil structure interaction; seismic reliability analysis of structures; and control of seismic response of structures. Provides comprehensive coverage, from seismology to seismic control Contains useful empirical equations often required in the seismic analysis of structures Outlines explicit steps for seismic analysis of MDOF systems with multi support excitations Works through solved problems to illustrate different concepts Makes use of MATLAB, SAP2000 and ABAQUAS in solving example problems of the book Provides numerous exercise problems to aid understanding of the subject As one of the first books to present such a comprehensive treatment of the topic, Seismic Analysis of Structures is ideal for postgraduates and researchers in Earthquake Engineering, Structural Dynamics, and Geotechnical Earthquake Engineering. Developed for classroom use, the book can also be used for advanced undergraduate students planning for a career or further study in the subject area. The book will also better equip structural engineering consultants and practicing engineers in the use of standard software for seismic analysis of buildings, bridges, dams, and towers. Lecture materials for instructors available at www.wiley.com/go/dattaseismic

Download or read book Soil structure Interaction written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1972 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the introduction of corrugated metal pipe in the late 1890s, there has been a continuing interest in proper pipe usage for maintenance purposes. Early methods of design were truly "rule of thumb" and were developed through "failure criteria." Refinements of these methods resulted in a set of systems that were very effective in dealing with pipe problems. However, the building of the Institute Highway System brought with it a need to develop new approaches that would incorporate the latest soil-structure interaction theories and be applicable to the larger structures, higher embankments, and new materials. Better inspection and construction control are considered requisite to the utilization of more refined theories. Practice in the design and construction of culverts continues to improve, but, because many organizations have not been able to keep up with or apply the latest theories, the Highway Research Board Committee on Subsurface Soil-Structure Interaction organized a symposium to assess the state of the art and to delineate problems needing further attention.

Download or read book Seismic Analysis of Safety related Nuclear Structures and Commentary on Standard for Seismic Analysis of Safety Related Nuclear Structures written by American Society of Civil Engineers and published by Amer Society of Civil Engineers. This book was released on 1987-01-01 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computer Analysis and Design of Earthquake Resistant Structures written by D. E. Beskos and published by Computational Mechanics. This book was released on 1997 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis and Computation of Seismic Soil Structure Interaction Effects written by Cassandra Lynn Batchelor and published by . This book was released on 1995 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamic Soil Structure Interaction written by C. Zhang and published by Elsevier. This book was released on 1998-09-22 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Soil-structure interaction is one of the major topics in earthquake engineering and soil dynamics since it is closely related to the safety evaluation of many important engineering projects, such as nuclear power plants, to resist earthquakes. In dealing with the analysis of dynamic soil-structure interactions, one of the most difficult tasks is the modeling of unbounded media. To solve this problem, many numerical methods and techniques have been developed. This book summarizes the most recent developments and applications in the field of dynamic soil-structure interaction, both in China and Switzerland. An excellent book for scientists and engineers in civil engineering, structural engineering, geotechnical engineering and earthquake engineering.

Download or read book Validation of Soil structure Interaction Analysis Methods written by JiinSong Tsai and published by . This book was released on 1990 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Parametic Study on the Effect of Soil structure Interaction on Seismic Response of MDOF and Equivalent SDOF Systems written by Behnoud Ganjavi and published by . This book was released on 2012 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Truncated abstract] Even though extensive researches have been conducted on Soil-Structure Interaction (SSI) since 1960s, there are several aspects of the complex phenomenon of SSI that have not been addressed thoroughly. The complex behavior of SSI together with uncertainties in soil and structure parameters, and in ground motions result in a significant controversy over the effect of SSI on structural response in both elastic and inelastic states. Recent studies considered SSI in inelastic response analysis are mainly based on idealized structural models of single-degree-of-freedom (SDOF) systems. However, due to neglecting the effects of higher modes, the number of building stories and lateral strength and stiffness distributions along the height of structures, an SDOF system might not be able to realistically capture the SSI effects on the inelastic responses of real buildings. The primary objective of this research is to advance, through extensive parametric study and analytical research, knowledge on the effects of SSI on elastic and inelastic responses of Multi-Degree-Of-Freedom (MDOF) systems, and to develop optimization techniques for optimum seismic design of elastic and inelastic shear buildings taking into consideration the SSI effects. Firstly, the study addresses the effect of SSI on elastic and inelastic response of MDOF and its equivalent SDOF systems. The adequacy of equivalent SDOF model to estimate strength and ductility demand of multi-storey soil-structure systems are intensively investigated. It is concluded that using the common E-SDOF systems for estimating the strength demands of average and slender MDOF systems when SSI effect is significant can lead to very un-conservative results. Secondly, the effect of structural property distribution on strength demand and ductility (strength) reduction factor of MDOF fixed-base and soil-structure systems has been investigated. It has been done through intensive parametric analyses of numerous linear and nonlinear MDOF systems and considering five different shear strength and stiffness distribution patterns including 3 code-specified patterns as well as uniform and concentric patterns subjected to a group of earthquakes recorded on alluvium and soft soils. Results indicate that for both fixed-base and flexible-base models, with exception of those with very short periods, the averaged total strength demand values of structures designed based on uniform story strength and stiffness distribution pattern along the height of the structures are significantly greater than those of the other patterns such as code-compliant patterns. This phenomenon is even more pronounced by increasing the number of stories. It is concluded that, therefore, using the results of the uniform story strength and stiffness distribution pattern which has been the assumption of many previous research works would result in a significant overestimation of the strength demands, generally from 2 to 4 times, for MDOF systems designed in accordance to the code-compliant design patterns...

Download or read book Dynamic Response of Infrastructure to Environmentally Induced Loads written by Anastasios G. Sextos and published by Springer. This book was released on 2017-05-29 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides state of the art coverage of important current issues in the analysis, measurement, and monitoring of the dynamic response of infrastructure to environmental loads, including those induced by earthquake motion and differential soil settlement. The coverage is in five parts that address numerical methods in structural dynamics, soil–structure interaction analysis, instrumentation and structural health monitoring, hybrid experimental mechanics, and structural health monitoring for bridges. Examples that give an impression of the scope of the topics discussed include the seismic analysis of bridges, soft computing in earthquake engineering, use of hybrid methods for soil–structure interaction analysis, effects of local site conditions on the inelastic dynamic analysis of bridges, embedded models in wireless sensor networks for structural health monitoring, recent developments in seismic simulation methods, and seismic performance assessment and retrofit of structures. Throughout, the emphasis is on the most significant recent advances and new material. The book comprises extended versions of contributions delivered at the DE-GRIE Lab Workshop 2014, held in Thessaloniki, Greece, in November 2014.

Download or read book Seismic Design and Assessment of Bridges written by Andreas J. Kappos and published by Springer Science & Business Media. This book was released on 2012-04-18 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on the use of inelastic analysis methods for the seismic assessment and design of bridges, for which the work carried out so far, albeit interesting and useful, is nevertheless clearly less than that for buildings. Although some valuable literature on the subject is currently available, the most advanced inelastic analysis methods that emerged during the last decade are currently found only in the specialised research-oriented literature, such as technical journals and conference proceedings. Hence the key objective of this book is two-fold, first to present all important methods belonging to the aforementioned category in a uniform and sufficient for their understanding and implementation length, and to provide also a critical perspective on them by including selected case-studies wherein more than one methods are applied to a specific bridge and by offering some critical comments on the limitations of the individual methods and on their relative efficiency. The book should be a valuable tool for both researchers and practicing engineers dealing with seismic design and assessment of bridges, by both making the methods and the analytical tools available for their implementation, and by assisting them to select the method that best suits the individual bridge projects that each engineer and/or researcher faces.

Download or read book Soil Structure Interaction written by A.S. Cakmak and published by Elsevier. This book was released on 2014-04-11 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite advances in the field of geotechnical earthquake engineering, earthquakes continue to cause loss of life and property in one part of the world or another. The Third International Conference on Soil Dynamics and Earthquake Engineering, Princeton University, Princeton, New Jersey, USA, 22nd to 24th June 1987, provided an opportunity for participants from all over the world to share their expertise to enhance the role of mechanics and other disciplines as they relate to earthquake engineering. The edited proceedings of the conference are published in four volumes. This volume covers: Soil Structure Interaction under Dynamic Loads, Vibration of Machine Foundations, and Base Isolation in Earthquake Engineering. With its companion volumes, it is hoped that it will contribute to the further development of techniques, methods and innovative approaches in soil dynamics and earthquake engineering.