Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams.
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/11296 http://dx.doi.org/10.1590/S1983-41952018000400007 |
Resumo: | Most of the engineering problems involving structural elements of steel-concrete composite beam type are approximations of the structural problem involving concrete plates connected by connectors to steel beams. Technical standards allow the replacement of the concrete plate element by a beam element by adopting a reduction in the width of the plate element known as effective width. The effective width is obtained, in most technical norms, taking into account only the parameters of beam span length and distance between adjacent beams. Numerical and experimental works found in the literature show that this effective width depends on several other parameters, such as the width and thickness of the concrete slab, and the type of loading. The objective of this work is to verify the influence of the partial interaction in the evaluation of the effective width of composite beams formed by a concrete slab connected to a steel beam with deformable connection, being used in numerical simulation three types of finite elements: a plate element for nonlinear analysis of the concrete slab; a bar element for non-linear analysis of beams with cross-section defined by a polygon; and an interface element which connects the plate and beam elements, simulating the deformation effect of the shear connectors. In the studied examples, it was found that the reduction of the shear connection stiffness at the interface between the concrete slab and the steel beam leads to a decrease in the shear lag effect and, consequently, makes the effective width of the concrete slab closer to the its real width. In another example, curves are constructed to define the effective width of a composite beam with medium stiffness. Considering maximum stresses and maximum displacements, these curves are obtained by forcing the equivalence of the approximate model with the model closest to the real problem. |
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Silva, Amilton Rodrigues daDias, Luís E. S.2019-05-14T16:36:22Z2019-05-14T16:36:22Z2017SILVA, A. R. da; DIAS, L. E. S. Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams. Revista IBRACON de Estruturas e Materiais, v. 11, n. 4, p. 757-778, ago. 2018. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000400757>. Acesso em: 12 fev. 2019.1983-4195http://www.repositorio.ufop.br/handle/123456789/11296http://dx.doi.org/10.1590/S1983-41952018000400007Most of the engineering problems involving structural elements of steel-concrete composite beam type are approximations of the structural problem involving concrete plates connected by connectors to steel beams. Technical standards allow the replacement of the concrete plate element by a beam element by adopting a reduction in the width of the plate element known as effective width. The effective width is obtained, in most technical norms, taking into account only the parameters of beam span length and distance between adjacent beams. Numerical and experimental works found in the literature show that this effective width depends on several other parameters, such as the width and thickness of the concrete slab, and the type of loading. The objective of this work is to verify the influence of the partial interaction in the evaluation of the effective width of composite beams formed by a concrete slab connected to a steel beam with deformable connection, being used in numerical simulation three types of finite elements: a plate element for nonlinear analysis of the concrete slab; a bar element for non-linear analysis of beams with cross-section defined by a polygon; and an interface element which connects the plate and beam elements, simulating the deformation effect of the shear connectors. In the studied examples, it was found that the reduction of the shear connection stiffness at the interface between the concrete slab and the steel beam leads to a decrease in the shear lag effect and, consequently, makes the effective width of the concrete slab closer to the its real width. In another example, curves are constructed to define the effective width of a composite beam with medium stiffness. Considering maximum stresses and maximum displacements, these curves are obtained by forcing the equivalence of the approximate model with the model closest to the real problem.A maioria dos problemas de engenharia envolvendo elementos estruturais do tipo viga mista de aço e concreto são aproximações do problema estrutural envolvendo placas de concreto ligadas por meio de conectores a vigas de aço. Normas técnicas permitem a substituição do elemento de placa de concreto por um elemento de viga adotando uma redução na largura do elemento de placa, conhecida como largura efetiva. A largura efetiva é obtida, na maioria das normas técnicas, levando em consideração apenas os parâmetros de comprimento do vão da viga e distância entre vigas adjacentes, porém alguns trabalhos numéricos e experimentais encontrados na literatura mostram que essa largura efetiva depende de vários outros fatores como, por exemplo, a largura e espessura da laje de concreto, e o tipo de carregamento. O objetivo desse trabalho é verificar a influência da interação parcial na determinação da largura efetiva de vigas mistas formadas por uma laje de concreto ligada a viga de aço com conexão deformável, sendo usado na simulação numérica três tipos de elementos finitos: um elemento de placa para análise não linear da laje de concreto; um elemento de barra para analise não linear de vigas com seção transversal definida por um polígono qualquer; e um elemento de interface que faz a ligação entre os elementos de placa e viga simulando o efeito de deformação dos conectores de cisalhamento. Nos exemplos analisados verificou-se que a redução da rigidez da conexão na interface entre a laje de concreto e a viga de aço leva a uma diminuição do efeito “shear lag” e, consequentemente, torna a largura efetiva da laje de concreto mais próxima da sua largura real. Em um dos exemplos são construídas curvas para definição da largura efetiva de uma viga mista com rigidez média. Considerando análises de tensões e flechas máximas, essas curvas são obtidas forçando a equivalência do modelo aproximado com o modelo mais próximo do problema real.This is an open-access article distributed under the terms of the Creative Commons Attribution License. Fonte: o próprio artigoinfo:eu-repo/semantics/openAccessStiffened concrete platePlaca de concreto enrijecidaNumerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams.Análise numérica do efeito da interação parcial na avaliação da largura efetiva de vigas mistas.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-8924http://www.repositorio.ufop.br/bitstream/123456789/11296/2/license.txt62604f8d955274beb56c80ce1ee5dcaeMD52ORIGINALARTIGO_NumericalAnalysisEffect.pdfARTIGO_NumericalAnalysisEffect.pdfapplication/pdf1176795http://www.repositorio.ufop.br/bitstream/123456789/11296/1/ARTIGO_NumericalAnalysisEffect.pdf48ed6f3225e449dafa5f4938f310dd2aMD51123456789/112962019-05-14 12:36:22.484oai:localhost: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ório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-05-14T16:36:22Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams. |
dc.title.alternative.pt_BR.fl_str_mv |
Análise numérica do efeito da interação parcial na avaliação da largura efetiva de vigas mistas. |
title |
Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams. |
spellingShingle |
Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams. Silva, Amilton Rodrigues da Stiffened concrete plate Placa de concreto enrijecida |
title_short |
Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams. |
title_full |
Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams. |
title_fullStr |
Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams. |
title_full_unstemmed |
Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams. |
title_sort |
Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams. |
author |
Silva, Amilton Rodrigues da |
author_facet |
Silva, Amilton Rodrigues da Dias, Luís E. S. |
author_role |
author |
author2 |
Dias, Luís E. S. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Silva, Amilton Rodrigues da Dias, Luís E. S. |
dc.subject.por.fl_str_mv |
Stiffened concrete plate Placa de concreto enrijecida |
topic |
Stiffened concrete plate Placa de concreto enrijecida |
description |
Most of the engineering problems involving structural elements of steel-concrete composite beam type are approximations of the structural problem involving concrete plates connected by connectors to steel beams. Technical standards allow the replacement of the concrete plate element by a beam element by adopting a reduction in the width of the plate element known as effective width. The effective width is obtained, in most technical norms, taking into account only the parameters of beam span length and distance between adjacent beams. Numerical and experimental works found in the literature show that this effective width depends on several other parameters, such as the width and thickness of the concrete slab, and the type of loading. The objective of this work is to verify the influence of the partial interaction in the evaluation of the effective width of composite beams formed by a concrete slab connected to a steel beam with deformable connection, being used in numerical simulation three types of finite elements: a plate element for nonlinear analysis of the concrete slab; a bar element for non-linear analysis of beams with cross-section defined by a polygon; and an interface element which connects the plate and beam elements, simulating the deformation effect of the shear connectors. In the studied examples, it was found that the reduction of the shear connection stiffness at the interface between the concrete slab and the steel beam leads to a decrease in the shear lag effect and, consequently, makes the effective width of the concrete slab closer to the its real width. In another example, curves are constructed to define the effective width of a composite beam with medium stiffness. Considering maximum stresses and maximum displacements, these curves are obtained by forcing the equivalence of the approximate model with the model closest to the real problem. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2019-05-14T16:36:22Z |
dc.date.available.fl_str_mv |
2019-05-14T16:36:22Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
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article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SILVA, A. R. da; DIAS, L. E. S. Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams. Revista IBRACON de Estruturas e Materiais, v. 11, n. 4, p. 757-778, ago. 2018. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000400757>. Acesso em: 12 fev. 2019. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/11296 |
dc.identifier.issn.none.fl_str_mv |
1983-4195 |
dc.identifier.doi.pt_BR.fl_str_mv |
http://dx.doi.org/10.1590/S1983-41952018000400007 |
identifier_str_mv |
SILVA, A. R. da; DIAS, L. E. S. Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams. Revista IBRACON de Estruturas e Materiais, v. 11, n. 4, p. 757-778, ago. 2018. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000400757>. Acesso em: 12 fev. 2019. 1983-4195 |
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http://www.repositorio.ufop.br/handle/123456789/11296 http://dx.doi.org/10.1590/S1983-41952018000400007 |
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