Cálculo de esforços e deslocamentos em estruturas de pisos de edifícios, considerando-se a influência das tensões cisalhantes PDF Download
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Author: Rodrigo de Azevêdo Neves
Publisher:
ISBN:
Category :
Languages : pt-BR
Pages : 113
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Book Description
Neste trabalho analisam-se grelhas de concreto armado, adaptando-se modelos não-lineares baseados na teoria mecânica do dano contínuo, com a incorporação da distorção da seção transversal ao estado de deformações. Discutem-se os modelos doCEB-158 (1985), da NBR-6118, para o concreto armado e modelos elastoplásticos para as barras da armadura longitudinal. Estuda-se a teoria de vigas de Timoshenko, onde são incorporadas as distorções da seção transversal à matriz de rigidez doelemento finito de viga. Discute-se o modelo de dano de MAZARS(1984), mostrando a sua formulação e parâmetros. Dedica-se especial atenção também à análise não-linear de grelhas de concreto armado, enfatizando-se as técnicas de solução dossistemas de equações não-lineares. Por fim, faz-se uma revisão sobre o modelo da treliça clássica de Mörsch, tomando-a como base para a formulação de um modelo de resistência de esforços cortantes em uma seção transversal de concreto armado.
Author: Rodrigo de Azevêdo Neves
Publisher:
ISBN:
Category :
Languages : pt-BR
Pages : 113
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Book Description
Neste trabalho analisam-se grelhas de concreto armado, adaptando-se modelos não-lineares baseados na teoria mecânica do dano contínuo, com a incorporação da distorção da seção transversal ao estado de deformações. Discutem-se os modelos doCEB-158 (1985), da NBR-6118, para o concreto armado e modelos elastoplásticos para as barras da armadura longitudinal. Estuda-se a teoria de vigas de Timoshenko, onde são incorporadas as distorções da seção transversal à matriz de rigidez doelemento finito de viga. Discute-se o modelo de dano de MAZARS(1984), mostrando a sua formulação e parâmetros. Dedica-se especial atenção também à análise não-linear de grelhas de concreto armado, enfatizando-se as técnicas de solução dossistemas de equações não-lineares. Por fim, faz-se uma revisão sobre o modelo da treliça clássica de Mörsch, tomando-a como base para a formulação de um modelo de resistência de esforços cortantes em uma seção transversal de concreto armado.
Author:
Publisher:
ISBN:
Category :
Languages : pt-BR
Pages :
Get Book Here
Book Description
Neste trabalho analisam-se grelhas de concreto armado, adaptando-se modelos não-lineares baseados na teoria mecânica do dano contínuo, com a incorporação da distorção da seção transversal ao estado de deformações. Discutem-se os modelos do CEB-158 (1985), da NBR-6118, para o concreto armado e modelos elastoplásticos para as barras da armadura longitudinal. Estuda-se a teoria de vigas de Timoshenko, onde são incorporadas as distorções da seção transversal à matriz de rigidez do elemento finito de viga. Discute-se o modelo de dano de MAZARS(1984), mostrando a sua formulação e parâmetros. Dedica-se especial atenção também à análise não-linear de grelhas de concreto armado, enfatizando-se as técnicas de solução dos sistemas de equações não-lineares. Por fim, faz-se uma revisão sobre o modelo da treliça clássica de Mörsch, tomando-a como base para a formulação de um modelo de resistência de esforços cortantes em uma seção transversal de concreto armado.
Author: Walter Liese
Publisher: BRILL
ISBN: 9788186247266
Category : Science
Languages : en
Pages : 212
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Book Description
Given its unrivalled position in terms of diversity, distribution and uses, coupled with the vital role it plays in the rural economies of several countries around the world, bamboo has emerged in recent years as potentially the most important non-wood forest resource to replace wood in construction and other uses. Concomitantly, the interest being shown in this invaluable natural resource since the 1980s has resulted in the accumulation of a considerable body of information through research on various aspects of bamboos, including the anatomy of the bamboo culm. There is, however, no comprehensive publication available on the anatomy of bamboo culm, with the available literature being fragmented, scattered and inadequate. This landmark monograph by renowned wood biologist, forestry expert and bamboo specialist, Professor Walter Liese, whose innovative work on the study of anatomical structure using advanced microscopy and other techniques has won him wide international acclaim, fulfils the need for a comprehensive overview of current knowledge on this subject. It is the first attempt to synthesize information from studies on this subject, many of which have been contributed by Professor Liese, spread over the past four decades. By identifying gaps in the current anatomical knowledge base of bamboo culm, it is expected to stimulate further research and to act as a prime mover for knowledge generation in the key areas of bamboo anatomy, growth and taxonomy.
Author: C. Duffy
Publisher: Springer
ISBN: 1137332182
Category : Literary Criticism
Languages : en
Pages : 210
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Book Description
The Landscapes of the Sublime examines the place of the 'natural sublime' in the cultural history of the eighteenth century and Romantic period. Drawing on a range of scholarship and historical sources, it offers a fresh perspective on the different species of the 'natural sublime' encountered by British and European travellers and explorers.
Author: Tuncer Cebeci
Publisher: Elsevier
ISBN: 0323151051
Category : Technology & Engineering
Languages : en
Pages : 423
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Book Description
Analysis of Turbulent Boundary Layers focuses on turbulent flows meeting the requirements for the boundary-layer or thin-shear-layer approximations. Its approach is devising relatively fundamental, and often subtle, empirical engineering correlations, which are then introduced into various forms of describing equations for final solution. After introducing the topic on turbulence, the book examines the conservation equations for compressible turbulent flows, boundary-layer equations, and general behavior of turbulent boundary layers. The latter chapters describe the CS method for calculating two-dimensional and axisymmetric laminar and turbulent boundary layers. This book will be useful to readers who have advanced knowledge in fluid mechanics, especially to engineers who study the important problems of design.
Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309185386
Category : Political Science
Languages : en
Pages : 93
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Book Description
The aviation and telecommunication revolutions have conspired to make distance increasingly irrelevant. An important consequence of this is that US citizens, accustomed to competing with their neighbors for jobs, now must compete with candidates from all around the world. These candidates are numerous, highly motivated, increasingly well educated, and willing to work for a fraction of the compensation traditionally expected by US workers. If the United States is to offset the latter disadvantage and provide its citizens with the opportunity for high-quality jobs, it will require the nation to excel at innovation-that is, to be first to market new products and services based on new knowledge and the ability to apply that knowledge. This capacity to discover, create and market will continue to be heavily dependent on the nation's prowess in science and technology. Indicators of trends in these fields are, at best, highly disconcerting. While many factors warrant urgent attention, the two most critical are these: (1) America must repair its failing K-12 educational system, particularly in mathematics and science, in part by providing more teachers qualified to teach those subjects, and (2) the federal government must markedly increase its investment in basic research, that is, in the creation of new knowledge. Only by providing leading-edge human capital and knowledge capital can America continue to maintain a high standard of living-including providing national security-for its citizens.
Author: Iain G. Currie
Publisher: CRC Press
ISBN: 0203910540
Category : Technology & Engineering
Languages : en
Pages : 504
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Book Description
Retaining the features that made previous editions perennial favorites, Fundamental Mechanics of Fluids, Third Edition illustrates basic equations and strategies used to analyze fluid dynamics, mechanisms, and behavior, and offers solutions to fluid flow dilemmas encountered in common engineering applications. The new edition contains completely reworked line drawings, revised problems, and extended end-of-chapter questions for clarification and expansion of key concepts. Includes appendices summarizing vectors, tensors, complex variables, and governing equations in common coordinate systems Comprehensive in scope and breadth, the Third Edition of Fundamental Mechanics of Fluids discusses: Continuity, mass, momentum, and energy One-, two-, and three-dimensional flows Low Reynolds number solutions Buoyancy-driven flows Boundary layer theory Flow measurement Surface waves Shock waves
Author: Jonathan Adam Wickert
Publisher:
ISBN: 9780357382516
Category :
Languages : en
Pages :
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Book Description
Author: Thomas J. Mueller
Publisher: Springer Science & Business Media
ISBN: 3662050587
Category : Technology & Engineering
Languages : en
Pages : 327
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Book Description
The book describes recent developments in aeroacoustic measurements in wind tunnels and the interpretation of the resulting data. The reader will find the latest measurement techniques described along with examples of the results.
Author: Marian Dawkins
Publisher: Springer
ISBN: 9780412225901
Category : Science
Languages : en
Pages : 150
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Book Description
I wrote this book because I believe that the welfare of animals is a very important subject but one about which there is a of confusion and muddled thinking. I wanted to great deal write a book which straightened out some of the confusion by looking in detail at one particular problem: how to recognize animal suffering. The book is written for anyone interested in animals and the controversies over how human beings should treat them. I have tried to convince people who might otherwise feel that science had only a rather sinister connection with animal welfare that the scientific study of animal suffering has, in fact, a major and positive contribution to make. It can give us an insight into what animals experience and this, in tum, may help us to alleviate their suffering. At the same time, I have tried to write a book that will be of at least some use to scientists. The chapters which follow pro vide an outline of the biological approach to animal welfare. I have also attempted to show sceptics that it is possible to study animal suffering without sacrificing standards of scien tific procedure. Perhaps some may even come to share my belief that the study of the subjective experiences of animals is one of the most fascinating areas in the whole of biology, as well as being of great practical and ethical importance.
