Cálculo de esforços e deslocamentos em pavimentos de edifícios considerando-se modelos próprios para concreto armado PDF Download
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Author: Faustino Sanches Júnior
Publisher:
ISBN:
Category :
Languages : pt-BR
Pages : 163
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Book Description
O objetivo deste trabalho é fornecer uma contribuição à análise estrutural de pavimentos de edifícios de concreto armado. Com esse fim, foram implementados os modelos de DEBERNARDI e de GHALI & FAVRE, próprios para barras de concreto armado. Osresultados são obtidos para o instante de aplicação de um carregamento e para um instante qualquer de tempo, considerando-se a fluência. Apresenta-se, no decorrer do trabalho, o equacionamento dos modelos e das variáveis envolvidas no processo. São mostrados exemplos práticos de aplicação dos algoritmos desenvolvidos e discute-se, nos capítulos finais, a redistribuição de momentos que ocorre em estruturas reticulares de concreto armado.
Author: Faustino Sanches Júnior
Publisher:
ISBN:
Category :
Languages : pt-BR
Pages : 163
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Book Description
O objetivo deste trabalho é fornecer uma contribuição à análise estrutural de pavimentos de edifícios de concreto armado. Com esse fim, foram implementados os modelos de DEBERNARDI e de GHALI & FAVRE, próprios para barras de concreto armado. Osresultados são obtidos para o instante de aplicação de um carregamento e para um instante qualquer de tempo, considerando-se a fluência. Apresenta-se, no decorrer do trabalho, o equacionamento dos modelos e das variáveis envolvidas no processo. São mostrados exemplos práticos de aplicação dos algoritmos desenvolvidos e discute-se, nos capítulos finais, a redistribuição de momentos que ocorre em estruturas reticulares de concreto armado.
Author: Pedro Arezes
Publisher: CRC Press
ISBN: 1138000477
Category : Technology & Engineering
Languages : en
Pages : 648
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Book Description
Occupational Safety and Hygiene presents selected papers from the International Symposium on Occupational Safety and Hygiene – SHO2013 (Guimarães, Portugal, 14-15 February 2013), which was organized by the Portuguese Society for Occupational Safety and Hygiene (SPOSHO). The contributions from 15 different countries focus on: - Occupational safety - Risk assessment - Safety management - Ergonomics - Management systems - Environmental ergonomics - Physical environments - Construction safety - Human factors The papers included in the book are mainly based on research carried out at universities and other research institutions, but they are also based on practical studies developed by Occupational Health & Safety (OHS) practitioners within their companies. As a result, this book will be useful to get acquainted with the state-of-the-art of the research within the aforementioned domains, as well as with some practical tools and approaches that are currently used by OHS professionals worldwide.
Author: Hugo Segawa
Publisher: Springer Science & Business Media
ISBN: 146145431X
Category : Architecture
Languages : en
Pages : 276
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Book Description
Architecture of Brazil: 1900-1990 examines the processes that underpin modern Brazilian architecture under various influences and characterizes different understandings of modernity, evident in the chapter topics of this book. Accordingly, the author does not give overall preference to particular architects nor works, with the exception of a few specific works and architects, including Warchavchik, Niemeyer, Lucio Costa, and Vilanova Artigas.
Author: G.Allen Burton
Publisher: CRC Press
ISBN: 1351093452
Category : Science
Languages : en
Pages : 362
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Book Description
Sediment Toxicity Assessment provides the latest information regarding how to evaluate sediment contamination and its effects on aquatic ecosystems. It presents an integrated ecosystem approach by detailing effective assessment methods, considerations, and effects to each major component of marine and freshwater systems, including the benthos, plankton, and fish communities. The approaches emphasize defining habitat conditions (physical and chemical), toxicant bioavailability, factors influencing toxicity (lab and field), biomarkers, acute and chronic toxicity, study design, collection methods, and EPA management strategies. The book also explains how to integrate the assessments. Sediment Toxicity Assessment will be useful to to all environmental managers, environmental scientists, ecotoxicologists, environmental regulators, aquatic ecologists, environmental contractors and consultants, instructors, students, conservation commissions, and environmental activist organizations.
Author: Alexandre Sampaio Botta
Publisher:
ISBN:
Category :
Languages : pt-BR
Pages : 98
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Book Description
O trabalho tem o objetivo de contribuir no avanço das metodologias de cálculo de esforços e deslocamentos em serviço das estruturas de pavimentos de edifícios a partir da consideração de modelos não-lineares que respresentam com mais fidelidade ocomportamento real do concreto armado. A forte não-linearidade física revelada nas curvas tensão-deformação obtidas de ensaios de corpos de prova de concreto atesta a exigência crescente de sua consideração nos modelos matemáticos de previsão docomportamento das estruturas usuais de concreto armado. Os modelos fundamentados na Mecânica do Dano Contínuo aplicam-se à previsão do comportamento do concreto por ser este um material que apresenta degradação de suas propriedades mecânicas emfunção do crescimento de microfissuras continuamente distribuídas na massa do material. O trabalho consta da implementação de dois algoritmos que descrevem os modelos de dano para o concreto propostos por Mazars e Cervera et. alli. que tem porfinalidade a determinação de esforços e deslocamentos em grelhas de pavimentos de concreto armado supondo a armadura concentrada em uma única camada e obedecendo a um regime de comportamento elasto-plástico com encruamento. O método doselementos finitos é aplicado e o modelo é transformado da relação escrita em termos de "tensão X deformação" para "momento X curvatura."
Author: Shauna Mallory-Hill
Publisher: John Wiley & Sons
ISBN: 0470657596
Category : Technology & Engineering
Languages : en
Pages : 360
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Book Description
Building Performance Evaluation (BPE) informs and enhances the usability and sustainability of building designs with lessons learned from evaluation of building performance throughout the building life cycle, from initial planning through occupancy to adaptive re-use. A key feature of BPE is that it examines design and technical performance of buildings alongside human performance criteria. That is, it seeks to examine facilities in order to determine whether they will work for the people that will use and occupy them. Rigorous BPE helps to improve design practice by providing feedback on the effectiveness of the choices made about the building to ensure that its design is optimised for stakeholders’ uses. The overarching theme for Enhancing Building Performance is to present the next generation of BPE work. The book provides an updated systematic approach for BPE as well as chapters written by experts from around the world who demonstrate how to apply BPE to enhance building design. Topics covered include: evidence-based and integrative design processes, evaluation methods and tools, and education and knowledge transfer. In addition, case studies provide specific examples of how BPE has been used to study such things as the impact of workplace design on human productivity and innovation. Written primarily for design professionals and facility managers who wish to use BPE to deliver improved building performance that is responsive to the needs of stakeholders, Enhancing Building Performance will also be of great value to researchers and students across a range of architecture and construction disciplines.
Author: R. G. Ainsworth
Publisher: IWA Publishing
ISBN: 1843390396
Category : Science
Languages : en
Pages : 168
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Book Description
The factors affecting the presence and growth of micro-organisms in piped networks are reviewed in this book, as are the practices of water supply organisations that can directly or indirectly influence their presence and growth. The information and conclusions are intended for policy makers and those responsible for formulating "Water Safety Plans" for the supply of drinking-water. It is also relevant to engineers and scientists who are responsible for water supply planning, operations and monitoring. The review shows that there are often public health reasons for adopting a more proactive approach to many of the traditional practices used in designing, operating and maintaining distribution networks, and to modifying the composition of the water that is fed into the network. Contents include the following topics: The microbiology of piped distribution systems and public health Composition of treated waters to minimise potential for microbiological changes Design and operation of distribution networks. Planned maintenance and survey of distribution systems Precautions during construction and repairs Small animals in drinking water distribution systems Risk management for distribution systems
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: Eleni Bastéa
Publisher: UNM Press
ISBN: 9780826332691
Category : Architecture
Languages : en
Pages : 364
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Book Description
An international study of cultural relationships with built environments.
Author: Bjorn Johannessen
Publisher:
ISBN: 9789221209775
Category : Rural roads
Languages : en
Pages : 0
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Book Description
First popularized on "Sesame Street, " Raposo's classic composition OSing a SongO has been interpreted by such performers as Gloria Estefan, the Dixie Chicks, and R.E.M. Here, illustrator Lichtenheld puts a visual story to this timeless and universal song that celebrates perseverance, self-expression, and the power of music. Includes a CD with three songs. Full color.
