This book is an outgrowth of the proceedings for the Geotechnical Symposium in Roma, which was held on March 16 and 17, 2006 in Rome, Italy. The Symposium was organized to celebrate the 60th birthday of Prof. Tatsuoka as well as honoring his research achievement. The publications are focused on the recent developments in the stress-strain behavior of geomaterials, with an emphasis on laboratory measurements, soil constitutive modeling and behavior of soil structures (such as reinforced soils, piles and slopes). The latest advancement in the field, such as the rate effect and dynamic behavior of both clay and sand, behavior of modified soils and soil mixtures, and soil liquefaction are addressed. A special keynote paper by Prof. Tatsuoka is included with three other keynote papers (presented by Prof. Lo Presti, Prof. Di Benedetto, and Prof. Shibuya).

This monograph examines the theoretical foundations of the spectral method for fatigue life determination. The authors discuss a rule of description of random loading states with the matrix of power spectral density functions of the stress/strain tensor components. Some chosen criteria of multiaxial fatigue failure are analyzed. The formula proposed in this book enables readers to determine power spectral density of the equivalent history directly from the components of the power spectral density matrix of the multidimensional stochastic process.

This book covers problems and their solution of a wide range of geotechnical topics. Every chapter starts with a summary of key concepts and theory, followed by worked-out examples, and ends with a short list of key references. It presents a unique collection of step by step solutions from basic to more complex problems in various topics of geotechnical engineering, including fundamental topics such as effective stress, permeability, elastic deformation, shear strength and critical state together with more applied topics such retaining structures and dams, excavation and tunnels, pavement infrastructure, unsaturated soil mechanics, marine works, ground monitoring. This book aims to provide students (undergraduates and postgraduates) and practitioners alike a reference guide on how to solve typical geotechnical problems. Features: Guide for solving typical geotechnical problems complementing geotechnical textbooks. Reference guide for practitioners to assist in determining solutions to complex geotechnical problems via simple methods.

During the last decade, the state of the art in Earthquake Engineering Design and Analysis has made significant steps towards a more rationale analysis of structures. Scientists have long recognized that earthquake design is guided by displacements and deformations rather than forces. However due to the historical background of structural engineers in static analyses, effects of earthquake on structures have been viewed as forces acting on the structures. All presently available design building codes are developed along these lines. Our knowledge of ground motion characteristics, earthquake geotechnical engineering, structural behaviour (design and numerical analyses) and model tests have advanced to a point where it is possible to anticipate a significant move from force based design approaches to displacements based design approaches. Although displacement based analyses constitute the kernel of most research programs, they have not yet been incorporated in the state of practice.

The purpose of the book is to review the fundamentals of displacement based methods, starting from engineering seismology, earthquake geotechnical engineering, to focus on design, analysis and testing of structures with emphasis on buildings and bridges.

This book focuses on the optimization of a geometrically-nonlinear structure under stability constraint. It presents a deep insight into optimization-based and computer-assisted stability design of discrete structures. Coverage combines design sensitivity analysis developed in structural optimization and imperfection-sensitivity analysis developed in stability analysis.

Research Methods for Construction will help you instil rigour into your problem-solving, and into your reports and publications. It will be of value to construction, surveying, architecture and civil engineering students undertaking research, whether for bachelors and masters degree dissertations, or for masters and doctoral research degree theses. Now in its Fourth Edition, this remains one of the few books to provide guidance on research formulation, methodologies, and methods specifically for construction students. Three main sections Producing a Proposal, Executing the Research and Reporting the Results discuss the key issues in research and examine the primary approaches, both qualitative and quantitative. The methods adopted for scientific and engineering experiments, model building and simulations are discussed, as well as those employed for research into management, social and economic issues. The authors examine the requirements for data and analysis, including the important statistical considerations and a range of qualitative techniques that enable construction researchers to appreciate what needs to be evaluated in devising how research may be carried out effectively and efficiently. This new edition has been updated to reflect current debates and concerns, including ethical issues, legislation and codes of practice concerning the collection, processing, storage, use and disposal of data. Pressures of time and funding to carry out the empirical work all too often lead to a lack of attention to how the study should be done and why. The authors address the importance of explaining the philosophical approach adopted (ontology, epistemology) and the consequent methodology. They advocate close scrutiny of the methods available for appropriateness, both academically and practically. The fundamental theme of the book remains to facilitate a researcher s informed and justified selection of a philosophical paradigm and of appropriate methods to execute the research.

Leading international researchers and practitioners of bifurcations and instabilities in geomechanics debate the developments and applications which have occurred over the last few decades. The topics covered include modeling of bifurcation, structural failure of geomaterials and geostructures, advanced analytical, numerical and experimental techniques, and application and development of generalised continuum models etc. In addition analytical solutions, numerical methods, experimental techniques, and case histories are presented. Beside fundamental research findings, applications in geotechnical, petroleum, mining, and bulk materials engineering are emphasised.

This book provides a solid introduction to the foundation and the application of the finite element method in structural analysis. It offers new theoretical insight and practical advice. This second edition contains additional sections on sensitivity analysis, on retrofitting structures, on the Generalized FEM (X-FEM) and on model adaptivity. An additional chapter treats the boundary element method, and related software is available at www.winfem.de.

The book systematically presents variational principles and methods of analysis for applied elasticity and structural mechanics. The variational approach is used consistently for both, constructing numerical procedures and deriving basic governing equations of applied mechanics of solids; it is the derivation of equations where this approach is most powerful and best grounded by mathematics.

Modern hydraulic binders can be used effectively with Portland cement and supplementary cementitious materials to produce durable concrete. They also provide a means of recycling by-products from other industries and of decreasing the emission of greenhouse gases.
The first binders were discovered in ancient times when it was observed that new pozzolans mixed with lime could harden under water; and in the middle of the nineteen century the first artificial hydraulic binder, Portland cement, was discovered. By modifying the four basic oxides in the limestone and clay mix used in the production of Portland cement it is possible to modify significantly the practical properties of the clinker, and consequently the performance of the fresh and hardened concrete in which it is used.
Chemical admixtures can be used to disperse cement particles without the use of extra water, and so make concrete which is highly resistant to penetration by aggressive agents and of high durability and strength. Supplementary cementitious materials or fillers can be mixed with Portland cement to produce modern hydraulic binders and improve the ecological performance of concrete. The hydration process of a modern hydraulic binder is becoming quite complex because it involves the chemical reactivity of Portland cement clinker, of supplementary cementitious materials and of different types of admixtures. This has already resulted in great technological achievements such as high-performance concrete, self leveling concrete, confined concrete, high-performance roller compacted concrete, fiber reinforced concrete, and reactive powder concrete.

Built upon the two original books by Mike Crisfield and their own lecture notes, renowned scientist Rene de Borst and his team offer a thoroughly updated yet condensed edition that retains and builds upon the excellent reputation and appeal amongst students and engineers alike for which Crisfield's first edition is acclaimed.

Together with numerous additions and updates, the new authors have retained the core content of the original publication, while bringing an improved focus on new developments and ideas. This edition offers the latest insights in non-linear finite element technology, including non-linear solution strategies, computational plasticity, damage mechanics, time-dependent effects, hyperelasticity and large-strain elasto-plasticity.

The authors' integrated and consistent style and unrivalled engineering approach assures this book's unique position within the computational mechanics literature.

Key features: Combines the two previous volumes into one heavily revised text with obsolete material removed, an improved layout and updated references and notationsExtensive new material on more recent developments in computational mechanicsEasily readable, engineering oriented, with no more details in the main text than necessary to understand the concepts.Pseudo-code throughout makes the link between theory and algorithms, and the actual implementation.Accompanied by a website (www.wiley.com/go/deborst) with a Python code, based on the pseudo-code within the book and suitable for solving small-size problems.

Non-linear Finite Element Analysis of Solids and Structures, 2nd Edition is an essential reference for practising engineers and researchers that can also be used as a text for undergraduate and graduate students within computational mechanics.

This book concentrates on the nonlinear static and dynamic analysis of structures and structural components that are widely used in everyday engineering applications. It presents unique methods for nonlinear problems which permits the correct usage of powerful linear methods. Every topic is thoroughly explained and includes numerical examples. The new concepts, theories and methods introduced simplify the solution of the complex nonlinear problems.

Thisbookisacollectionof31paperspresentedattheInternationalWorkshop on Modern Trends in Geomechanics, held on 27-29 June 2005 in Vienna. This workshop was run under the motto to bring together di?erent schools of thought in geomechanics research. The workshop was attended by about 50 participants from 15 countries. Besides the presentations, the workshop also o?ered welcoming occasions for stimulating discussions. The contributions in this book cover a wide range of topics from applied mathematics to geoengineering applications, re?ecting the breadth and depth of geomechanics research. The articles are peer reviewed and arranged in six parts: general aspects, constitutive modelling, micromechanics, analytical and numerical methods, granular materials and engineering applications. Wewouldliketothankallcontributorsfortheirdiligencetoprovidetimely their contributions. The generous support received from the following orga- zations is gratefully acknowledged: - Alpine Mayreder Construction Ltd - Bank Austria - Credit Institute - Austrian Geomechanics Society Our thanks also go to the managing editors at Springer, in particular Ms. Heather King and Dr. Thomas Ditzinger, who have enabled the qu- ity publication of this book at reasonable price. Last but not least, we would like to express our thanks to our co-workers in Vienna and Nottingham for theirhelpduringtheworkshop.Inparticular, oursecretaries, AnkePriewasser (Vienna) and Caroline Dolby (Nottingham), deserve our heartfelt thanks for their e?ort in organising the workshop and compiling this boo

"The Fifth Edition of Structural Dynamics: Theory and Computation is the complete and comprehensive text in the field. It presents modern methods of analysis and techniques adaptable to computer programming clearly and easily. The book is ideal as a text for advanced undergraduates or graduate students taking a first course in structural dynamics. It is arranged in such a way that it can be used for a one- or two-semester course, or span the undergraduate and graduate levels. In addition, this text will serve the practicing engineer as a primary reference. The text differs from the standard approach of other presentations in which topics are ordered by their mathematical complexity. This text is organized by the type of structural modeling. The author simplifies the subject by presenting a single degree-of-freedom system in the first chapters, then moves to systems with many degrees-of-freedom in the following chapters. Finally, the text moves to applications of the first chapters and special topics in structural dynamics. New in this Edition: Problems reworked for SAP2000 (R). Step-by-step examples of how to use SAP2000 (R) for every application of structural dynamics. Inclusion of companion Web site (extras.springer.com/2004) with three learning aids: SAP2000 (R) student version; source code for the author's educational programs in structural dynamics, so that the results of changed parameters can be seen step-by-step; and the compiler (executable files) for the author's educational programs. Three earthquake engineering chapters updated to the latest ICC (R) building codes. Materials rearranged so that theory and dynamic analysis precede applications and special topics, facilitating using the book sequentially. Complete instructions provided to advanced topics as foundation for further study. This text is essential for civil engineering students. Professional civil engineers will find it an ideal reference."

Geomaterials consist of a mixture of solid particles and void space that may be ?lled with ?uid and gas. The solid particles may be di?erent in sizes, shapes, and behavior; and the pore liquid may have various physical and chemical properties. Hence, physical, chemical or electrical interaction - tween the solid particles and pore ?uid or gas may take place. Therefore, the geomaterials in general must be considered a mixture or a multiphase material whose state is described by physical quantities in each phase. The stresses carried by the solid skeleton are typically termed "e?ective stress" while the stresses carried by the pore liquid are termed "pore pressure. " The summation of the e?ective stress and pore pressure is termed "total stress" (Terzaghi, 1943). For a free drainage condition or completely undrained c- dition, the pore pressure change is zero or depends only on the initial stress condition; it does not depend on the skeleton response to external forces. Therefore, a single phase description of soil behavior is adequate. For an intermediate condition, however, some ?ow (pore pressure leak) may take place while the force is applied and the skeleton is under deformation. Due to the leak of pore pressure, the pore pressure changes with time, and the e?ective stress changes and the skeleton deforms with time accordingly. The solution of this intermediate condition, therefore, requires a multi-phase c- tinuum formulations that may address the interaction of solid skeleton and pore liquid interaction.

Structural Synthesis in Precision Elasticity reflects the summary of theoretical and experimental studies whose conclusions are effective for optimized structural synthesis in precision elasticity, as well as demonstrate a large experience and options in the synthesis, production, application of precision elastic guides, mechanisms, correctors, transducers, instruments and machines. The main focus of this book is in the possible simplification of the corresponding analytical apparatus by using kinematical equivalents, matrix methods, appropriate contours, and function expansion with enough accurate minimal polynomials. This approach allows for substitution of some known unwieldy formulae and methods that are not convenient for digestible and tractable synthesis. The book consists of two main parts: the elastic systems functional analysis and structural synthesis methods, including effective approximations and references to the history of their development; and, the application and development of prevision functional elastic systems at reference and operating conditions, including the observation of archives with effective synthesized structures. recommendations. This book gives theoretical and practical tools to researchers, precision machines, instruments and miniature systems designers, engineers, metrologists, and engineering students. Despite that this book is dedicated to the general problems of the structural synthesis in precision elasticity, most of the practical examples and applications are concerned with the measuring systems as the precision is their main goal.The author intends to show close connection between the elastic precision structures developed during the 20th century, and even before and the new elastic systems for atomic for microscopy and other recently created advanced structures in precision elasticity.

Manynationshavebecomevictimsofterrorism. Bombshaveexplodedinand around buildings and other structures. Such events have generated cons- erable concern over the ability of countries and governments to protect - stallations and their occupants against a potential threat of terrorism. Many countries have established defence agencies and research councils who are currently examining the structural integrity of existing buildings and other vital installations. In some countries codi?ed methods have been developed together with the design methodologies and construction techniques to try to protect old installations against vehicle bomb e?ects in particular. The purpose of this book is to give an exhaustive study of buildings structures resistingexplosion with and withoutexternal/internalimpactand ?recaused by such e?ects. A number of case studies with damage scenarios are included. The book is divided into various chapters. Chapter 1 gives a review of bomb-a?ected buildings. Case studies incl- ingAlfred P. Murrah Federal Building in Oklahoma and World Trade Center (WTC) Twin Towers in New York have been given a wide coverage. Notable explosionsintheworldwithrelevantdataaretabulated. Afterthesethed- age scenario of the Pentagon building is fully described. This chapter now resorts to the availability of data on major explosive elements, their ingre- ents and material properties.

Strong ground motion measuring and recording instruments play a major role in mitigation of seismic risk. The strong ground motion near the source of an earthquake describes the effects that endanger our built environment, and is also the most detailed clue concerning the source mechanism of the earthquake. The range of complexity that engulfs our understanding of the source parameters of a major earthquake (extent of the source mechanism, stress drop, wave propagation patterns) and how buildings and other works of construction respond to ground-transmitted dynamic effects may be overpowered by improved direct observations. Strong motion seismographs provide the information that enables scientists and engineers to resolve the many issues that are intertwined with practical problems of building safe communities worldwide. They may be installed as arrays close to major fault zones, consisting of many instruments arranged in some geometrical pattern, or in the vicinity and mounted on buildings.

This book, which contains papers by invited authorities, represents a unique interaction between seismologists and earthquake engineers who examine issues of mutual concern in an overlapping area of major interest. The papers have been grouped around three major areas.
-Seismic Hazard and Extreme Motions
-Engineering Uses of Strong Motion Seismograms
-Arrays and Observations.

Strong ground motion measuring and recording instruments play a major role in mitigation of seismic risk. The strong ground motion near the source of an earthquake describes the effects that endanger our built environment, and is also the most detailed clue concerning the source mechanism of the earthquake. The range of complexity that engulfs our understanding of the source parameters of a major earthquake (extent of the source mechanism, stress drop, wave propagation patterns) and how buildings and other works of construction respond to ground-transmitted dynamic effects may be overpowered by improved direct observations. Strong motion seismographs provide the information that enables scientists and engineers to resolve the many issues that are intertwined with practical problems of building safe communities worldwide. They may be installed as arrays close to major fault zones, consisting of many instruments arranged in some geometrical pattern, or in the vicinity and mounted on buildings.

This book, which contains papers by invited authorities, represents a unique interaction between seismologists and earthquake engineers who examine issues of mutual concern in an overlapping area of major interest. The papers have been grouped around three major areas.
-Seismic Hazard and Extreme Motions
-Engineering Uses of Strong Motion Seismograms
-Arrays and Observations.

Corrugated web girders (CWGs), used for bridge construction, differ in important ways from conventional prismatic girders. Behavior and Design of Trapezoidally Corrugated Web Girders for Bridge Construction details the behavior and design of CWGs in bridge construction and includes unique research into high-strength steel. The title gives a comprehensive review of the last decade in CWG design. In-depth explanations of key concepts are given - such as the accordion effect - that differentiate these girders from more conventional flat-webbed girders, and the authors also present specialized research into tubular flanged girders. The book distinguishes between prismatic and tapered CWGs, explains failure modes under both shear and flexure, and gives clear figures to illustrate these modes. The volume compares international building codes and offers recommendations for future research. Seven chapters cover -- An introduction to CWGs for bridge construction; Development of bridges with corrugated webs; Real boundary conditions between flange and web; Shear buckling behavior; Flexural buckling behavior; Recent erection methods and; Future research.

Completely revised and updated, this fourth edition of Structural Steelwork: Design to Limit State Theory describes the design theory and code requirements for common structures, connections, elements, and frames. It provides a comprehensive introduction to structural steelwork design with detailed explanations of the principles underlying steel design. See what's in the Fourth Edition: All chapters updated and rearranged to comply with Eurocode 3 Compliant with the other Eurocodes Coverage of both UK and Singapore National Annexes Illustrated with fully worked examples and practice problems The fourth edition of an established and popular text, the book provides guidance for students of structural and civil engineering and is also sufficiently informative for practising engineers and architects who need an introduction to the Eurocodes.

Plates and panels are primary components in many structures including space vehicles, aircraft, automobiles, buildings, bridge decks, ships and submarines. The ability to design, analyse, optimise and select the proper materials for these structures is a necessity for structural designers, analysts and researchers.

This text consists of four parts. The first deals with plates of isotropic (metallic and polymeric) materials. The second involves composite material plates, including anisotropy and laminate considerations. The third section treats sandwich constructions of various types, and the final section gives an introduction to plates involving piezoelectric materials, in which the "smart" or "intelligent" materials are used as actuators or sensors.

In each section, the formulations encompass plate structures subjected to static loads, dynamic loads, buckling, thermal/moisture environments, and minimum weight structural optimisation.

This is a textbook for a graduate course, an undergraduate senior course and a reference. Many homework problems are given in various chapters.

Summary: This book presents necessary background knowledge on mechanics to understand and analyze elastic wave propagation in solids and fluids. This knowledge is necessary for elastic wave propagation modeling and for interpreting experimental data generated during ultrasonic nondestructive testing and evaluation (NDT&E). The book covers both linear and nonlinear analyses of ultrasonic NDT&E techniques. The materials presented here also include some exercise problems and solution manual. Therefore, this book can serve as a textbook or reference book for a graduate level course on elastic waves and/or ultrasonic nondestructive evaluation. It will be also useful for instructors who are interested in designing short courses on elastic wave propagation in solids or NDT&E. The materials covered in the first two chapters provide the fundamental knowledge on linear mechanics of deformable solids while Chapter 4 covers nonlinear mechanics. Thus, both linear and nonlinear ultrasonic techniques are covered here. Nonlinear ultrasonic techniques are becoming more popular in recent years for detecting very small defects and damages. However, this topic is hardly covered in currently available textbooks. Researchers mostly rely on published research papers and research monographs to learn about nonlinear ultrasonic techniques. Chapter 3 describes elastic wave propagation modeling techniques using DPSM. Chapter 5 is dedicated to an important and very active research field - acoustic source localization - that is essential for structural health monitoring and for localizing crack and other type of damage initiation regions. Features * Introduces Linear and Nonlinear ultrasonic techniques in a single book. * Commences with basic definitions of displacement, displacement gradient, traction and stress. * Provides step by step derivations of fundamental equations of mechanics as well as linear and nonlinear wave propagation analysis. * Discusses basic theory in addition to providing detailed NDE applications. * Provides extensive example and exercise problems along with an extensive solutions manual.

Extensive numerical methods for computing design sensitivity are included in the text for practical application and software development. The numerical method allows integration of CAD-FEA-DSA software tools, so that design optimization can be carried out using CAD geometric models instead of FEA models. This capability allows integration of CAD-CAE-CAM so that optimized designs can be manufactured effectively.