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Author: Publisher: ISBN: Category : Languages : pt-BR Pages :
Book Description
A necessidade cada vez mais freqüente de reforço em estruturas de concreto armado, exige um completo conhecimento do comportamento da estrutura reforçada devido a alterações de rigidez do conjunto, aumento da cargade ruptura, alterações na distribuição de fissuras, modificação de comportamento e posição da linha neutra, entre outros. Nos últimos anos diversos estudosexperimentais têm sido conduzidos, fornecendo parâmetros cada vez mais confiáveis à elaboração de projetos e ao dimensionamento seguro em relação aos estados limites de utilização e de ruptura. No desenvolvimento deste trabalho, utiliza-se um programa computacional baseado no método dos elementos finitos, capaz de descrever o comportamento de elementos estruturais prismáticos em concreto armado reforçados à flexão. Descreve-se o modelo hipoelástico de Elwi e Murray -1979- para o concreto simples e um modelo multilinear para simulação dos reforços. Tais relações resultam de estudos analíticos e experimentais sobre oconcreto armado e estão originalmente implementadas no programa FEPARCS -Elwi e Murray, 1980-, que neste trabalho é modificado e adaptado de acordo com a realidade da execução de reforços em estruturas em serviço. O programaFEPACS, capaz de realizar análises numéricas não-lineares, é acoplado a um programa de pré e pós-processamento gráfico especialmente desenvolvido para geração, gerenciamento do processo de cálculo e para análise de resultados obtidos. Os resultados obtidos utilizando o programa proposto são validados através de uma comparação com resultados experimentais obtidos na literatura.
Author: Publisher: ISBN: Category : Languages : pt-BR Pages :
Book Description
A necessidade cada vez mais freqüente de reforço em estruturas de concreto armado, exige um completo conhecimento do comportamento da estrutura reforçada devido a alterações de rigidez do conjunto, aumento da cargade ruptura, alterações na distribuição de fissuras, modificação de comportamento e posição da linha neutra, entre outros. Nos últimos anos diversos estudosexperimentais têm sido conduzidos, fornecendo parâmetros cada vez mais confiáveis à elaboração de projetos e ao dimensionamento seguro em relação aos estados limites de utilização e de ruptura. No desenvolvimento deste trabalho, utiliza-se um programa computacional baseado no método dos elementos finitos, capaz de descrever o comportamento de elementos estruturais prismáticos em concreto armado reforçados à flexão. Descreve-se o modelo hipoelástico de Elwi e Murray -1979- para o concreto simples e um modelo multilinear para simulação dos reforços. Tais relações resultam de estudos analíticos e experimentais sobre oconcreto armado e estão originalmente implementadas no programa FEPARCS -Elwi e Murray, 1980-, que neste trabalho é modificado e adaptado de acordo com a realidade da execução de reforços em estruturas em serviço. O programaFEPACS, capaz de realizar análises numéricas não-lineares, é acoplado a um programa de pré e pós-processamento gráfico especialmente desenvolvido para geração, gerenciamento do processo de cálculo e para análise de resultados obtidos. Os resultados obtidos utilizando o programa proposto são validados através de uma comparação com resultados experimentais obtidos na literatura.
Author: Luthfi Muhammad Mauludin Publisher: LAP Lambert Academic Publishing ISBN: 9783659414756 Category : Languages : en Pages : 112
Book Description
This book presents the numerical evaluation of reinforced concrete beam which is repaired with polymer modified mortar. In this study, a series of reinforced concrete beams model were built for the analysis. All those beams model were made with rectangular cross section and equipped with longitudinal reinforcement both in tension and compression region and also transversal reinforcement(stirrups)in shear span extended to the entire length of the beam with uniform spacing. The repaired beams are modeled by Finite Element Method (FEM) into half geometry due to the symmetric geometry and loading conditions. The repaired beams were modeled by 2D elements in plane-stress condition including the interface model between the parent concrete and the repaired layer. Finite Element Method used to model simple support of the repaired beams with two loading points. Furthermore, parametric study is carried out to evaluate the effectiveness and the behavior of repaired beam with different concrete properties, repairing mortar properties and also with different thickness of mortar as well.
Author: Xiaoshan Lin Publisher: Woodhead Publishing ISBN: 0128169001 Category : Technology & Engineering Languages : en Pages : 258
Book Description
Nonlinear Finite Element Analysis of Composite and Reinforced Concrete Beams presents advanced methods and techniques for the analysis of composite and FRP reinforced concrete beams. The title introduces detailed numerical modeling methods and the modeling of the structural behavior of composite beams, including critical interfacial bond-slip behavior. It covers a new family of composite beam elements developed by the authors. Other sections cover nonlinear finite element analysis procedures and the numerical modeling techniques used in commercial finite element software that will be of particular interest to engineers and researchers executing numerical simulations. - Gives advanced methods and techniques for the analysis of composite and fiber Reinforced Plastic (FRP) and reinforced concrete beams - Presents new composite beam elements developed by the authors - Introduces numerical techniques for the development of effective finite element models using commercial software - Discusses the critical issues encountered in structural analysis - Maintains a clear focus on advanced numerical modeling
Author: Luthfi Muhammad Mauludin Publisher: ISBN: Category : Languages : en Pages : 94
Book Description
This study presents the numerical evaluation of reinforced concrete beam which is repaired with polymer modified mortars. In this study, a series of reinforced concrete beams model were built for the analysis. All those beams model were made with rectangular cross section and equipped with longitudinal reinforcement both in tension and compression region and also transversal reinforcement (stirrups) in shear span extended to the entire length of the beam with uniform spacing. The repaired beams are modeled by Finite Element Method (FEM) into half geometry due to the symmetric geometry and loading conditions. The repaired beams were modeled by 2D elements in plane-stress condition including the interface model between the parent concrete and the repaired layer. Finite Element Method used to model simple support of the repaired beams with two loading points. Furthermore, parametric study is carried out to evaluate the effectiveness and the behavior of repaired beam with different concrete properties, repairing mortar properties and also with different thickness of mortars as well. Finally, to evaluate fatigue behavior of the repaired beams, numerical modeling is carried out to assess the behavior of the repaired beams when subjected to cyclic loading with applying number of cycles of loading. The numerical results showed that thick repairs which the longitudinal reinforcement included were found to be the most effective method for repairing when subjected both to static and fatigue loading. The result from this numerical modeling would become valuable reference for the experimental test which will be carried out in the future.
Author: M. A. Mansur Publisher: CRC Press ISBN: 9780849374357 Category : Technology & Engineering Languages : en Pages : 240
Book Description
This book compiles state-of-the-art information on the behavior, analysis, and design of concrete beams containing transverse openings. Discussions include the need, effects, and classification of openings as well as the general requirements for fulfilling design pure bending, combined bending, and shear - illustrated with numerical examples torsion alone or in combination with bending and shear large rectangular openings as well as opening size and location on beam behavior methods for analyzing ultimate strength and serviceability requirements effects of torsion in beams large openings in continuous beams and their effects on possible redistribution of internal forces as well as guidelines and procedures for the design of such beams effect of prestressing on the serviceability and strength of beams with web openings design against cracking at openings and ultimate loads Concrete Beams with Openings serves as an invaluable source of information for designers and practicing engineers, especially useful since little or no provision or guidelines are currently available in most building codes.
Author: F K Kong Publisher: CRC Press ISBN: 0203034880 Category : Architecture Languages : en Pages : 305
Book Description
The contents of this book have been chosen with the following main aims: to review the present coverage of the major design codes and the CIRIA guide, and to explain the fundamental behaviour of deep beams; to provide information on design topics which are inadequately covered by the current codes and design manuals; and to give authoritative revie
Author: Nenad Bicanic Publisher: CRC Press ISBN: 131576203X Category : Technology & Engineering Languages : en Pages : 1120
Book Description
The EURO-C conference series (Split 1984, Zell am See 1990, Innsbruck 1994, Badgastein 1998, St Johann im Pongau 2003, Mayrhofen 2006, Schladming 2010, St Anton am Alberg 2014) brings together researchers and practising engineers concerned with theoretical, algorithmic and validation aspects associated with computational simulations of concrete and
Author: Sheila Belayutham Publisher: Springer Nature ISBN: 981167924X Category : Technology & Engineering Languages : en Pages : 1515
Book Description
This book compiles papers presented during the 5th International Conference on Sustainable Civil Engineering Structures and Construction Materials (SCESCM) held virtually in December 2020. This is the fifth edition of this conference series; the theme for the 5th SCESCM is “Transforming the World, Foster the Sustainable Development Goals (SDGs),” and it focuses on various issues, novel findings, as well as developments in the area of civil and infrastructure, conforming to the SDGs. This book caters to postgraduate students, researchers, and practitioners involved in advocating and embedding sustainability in various phases of design, construction and maintenance of civil engineering structures and infrastructure facilities.
Author: 
Author: 
Author: Luthfi Muhammad Mauludin
Author: Xiaoshan Lin
Author: Luthfi Muhammad Mauludin
Author: Shamsher Bahadur Singh
Author: M. A. Mansur
Author: Zinoviy Blikharskyy
Author: F K Kong
Author: Nenad Bicanic
Author: Sheila Belayutham