Numerical analysis of truss systems with stiffened flattened end-bars.
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/10261 |
Resumo: | Circular hollow sections are usually used in long-span roof truss systems. One of the typology for connecting elements in such structures involves the flattening of bar ends. This article presents the numerical analysis of a plane truss composed of circular hollow sections, in which diagonal bars have flattened ends. In this sense, a new flattening typology called stiffened flattening is proposed, characterized by a non-flat geometry, with the creation of stiffeners in the lateral edges of the diagonal flattened ends. The diagonal connecting system with the chord members uses connecting plates. The plates are welded to the chords and the diagonals are connected to latter through a single bolt. The numerical analysis using finite elements method was developed in two stages through ANSYS software with the Parametric Design Language (APDL), in which parameters such as geometry, materials, element types, boundary conditions and loads are specified. A non-linear analysis was performed using shell elements on the chords, diagonals, plates and welds, and contact elements between the diagonals with stiffened flattened ends and the connecting plates. Initially, a numerical study of the connecting node and the stiffened flattened end was performed, and the results directed the modeling of the plane truss. The numerical results were calibrated with the experimental truss results in full scale. The numerical result of the plane truss was also compared to a theoretical study, considering the axial load eccentricity applied in the diagonal with stiffened flattened ends. The study was based on the consideration of combined effects of axial force and bending moment provided by the Brazilian standard ABNT NBR 8800:2008. The final results indicate that the numerical model proposed is efficient and has good correlation with the experimental and theoretical results. |
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Mazon, Ana Amélia OliveiraSarmanho, Arlene Maria CunhaNunes, Gabriel VieiraAmparo, Lucas RoqueteNeiva, Luiz Henrique de AlmeidaSouza, Flávio Teixeira de2018-09-26T18:24:05Z2018-09-26T18:24:05Z2018MAZON, A. A. O. et al. Numerical analysis of truss systems with stiffened flattened end-bars. Latin American Journal of Solids and Structures, v. 15, n. 3, p. 1-24, 2018. Disponível em: <http://www.scielo.br/scielo.php?pid=S1679-78252018000300504&script=sci_abstract&tlng=en>. Acesso em: 03 mai. 2018.16797825http://www.repositorio.ufop.br/handle/123456789/10261Circular hollow sections are usually used in long-span roof truss systems. One of the typology for connecting elements in such structures involves the flattening of bar ends. This article presents the numerical analysis of a plane truss composed of circular hollow sections, in which diagonal bars have flattened ends. In this sense, a new flattening typology called stiffened flattening is proposed, characterized by a non-flat geometry, with the creation of stiffeners in the lateral edges of the diagonal flattened ends. The diagonal connecting system with the chord members uses connecting plates. The plates are welded to the chords and the diagonals are connected to latter through a single bolt. The numerical analysis using finite elements method was developed in two stages through ANSYS software with the Parametric Design Language (APDL), in which parameters such as geometry, materials, element types, boundary conditions and loads are specified. A non-linear analysis was performed using shell elements on the chords, diagonals, plates and welds, and contact elements between the diagonals with stiffened flattened ends and the connecting plates. Initially, a numerical study of the connecting node and the stiffened flattened end was performed, and the results directed the modeling of the plane truss. The numerical results were calibrated with the experimental truss results in full scale. The numerical result of the plane truss was also compared to a theoretical study, considering the axial load eccentricity applied in the diagonal with stiffened flattened ends. The study was based on the consideration of combined effects of axial force and bending moment provided by the Brazilian standard ABNT NBR 8800:2008. The final results indicate that the numerical model proposed is efficient and has good correlation with the experimental and theoretical results.O periódico Latin American Journal of Solids and Structures permite o depósito de cópia em repositório institucional. Fonte: Latin American Journal of Solids and Structures <http://www.lajss.org/index.php/LAJSS/about/submissions#copyrightNotice>. Acesso em: 03 jan. 2017.info:eu-repo/semantics/openAccessSteel structuresPlane trussesCircular hollow sectionsNumerical analysis of truss systems with stiffened flattened end-bars.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/123456789/10261/2/license.txt62604f8d955274beb56c80ce1ee5dcaeMD52ORIGINALARTIGO_NumericalAnalysisTruss.pdfARTIGO_NumericalAnalysisTruss.pdfapplication/pdf1525144http://www.repositorio.ufop.br/bitstream/123456789/10261/1/ARTIGO_NumericalAnalysisTruss.pdf1720df5d8eaea025a8158656436dc824MD51123456789/102612018-09-26 14:24:05.108oai:localhost: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ório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332018-09-26T18:24:05Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
Numerical analysis of truss systems with stiffened flattened end-bars. |
title |
Numerical analysis of truss systems with stiffened flattened end-bars. |
spellingShingle |
Numerical analysis of truss systems with stiffened flattened end-bars. Mazon, Ana Amélia Oliveira Steel structures Plane trusses Circular hollow sections |
title_short |
Numerical analysis of truss systems with stiffened flattened end-bars. |
title_full |
Numerical analysis of truss systems with stiffened flattened end-bars. |
title_fullStr |
Numerical analysis of truss systems with stiffened flattened end-bars. |
title_full_unstemmed |
Numerical analysis of truss systems with stiffened flattened end-bars. |
title_sort |
Numerical analysis of truss systems with stiffened flattened end-bars. |
author |
Mazon, Ana Amélia Oliveira |
author_facet |
Mazon, Ana Amélia Oliveira Sarmanho, Arlene Maria Cunha Nunes, Gabriel Vieira Amparo, Lucas Roquete Neiva, Luiz Henrique de Almeida Souza, Flávio Teixeira de |
author_role |
author |
author2 |
Sarmanho, Arlene Maria Cunha Nunes, Gabriel Vieira Amparo, Lucas Roquete Neiva, Luiz Henrique de Almeida Souza, Flávio Teixeira de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Mazon, Ana Amélia Oliveira Sarmanho, Arlene Maria Cunha Nunes, Gabriel Vieira Amparo, Lucas Roquete Neiva, Luiz Henrique de Almeida Souza, Flávio Teixeira de |
dc.subject.por.fl_str_mv |
Steel structures Plane trusses Circular hollow sections |
topic |
Steel structures Plane trusses Circular hollow sections |
description |
Circular hollow sections are usually used in long-span roof truss systems. One of the typology for connecting elements in such structures involves the flattening of bar ends. This article presents the numerical analysis of a plane truss composed of circular hollow sections, in which diagonal bars have flattened ends. In this sense, a new flattening typology called stiffened flattening is proposed, characterized by a non-flat geometry, with the creation of stiffeners in the lateral edges of the diagonal flattened ends. The diagonal connecting system with the chord members uses connecting plates. The plates are welded to the chords and the diagonals are connected to latter through a single bolt. The numerical analysis using finite elements method was developed in two stages through ANSYS software with the Parametric Design Language (APDL), in which parameters such as geometry, materials, element types, boundary conditions and loads are specified. A non-linear analysis was performed using shell elements on the chords, diagonals, plates and welds, and contact elements between the diagonals with stiffened flattened ends and the connecting plates. Initially, a numerical study of the connecting node and the stiffened flattened end was performed, and the results directed the modeling of the plane truss. The numerical results were calibrated with the experimental truss results in full scale. The numerical result of the plane truss was also compared to a theoretical study, considering the axial load eccentricity applied in the diagonal with stiffened flattened ends. The study was based on the consideration of combined effects of axial force and bending moment provided by the Brazilian standard ABNT NBR 8800:2008. The final results indicate that the numerical model proposed is efficient and has good correlation with the experimental and theoretical results. |
publishDate |
2018 |
dc.date.accessioned.fl_str_mv |
2018-09-26T18:24:05Z |
dc.date.available.fl_str_mv |
2018-09-26T18:24:05Z |
dc.date.issued.fl_str_mv |
2018 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
MAZON, A. A. O. et al. Numerical analysis of truss systems with stiffened flattened end-bars. Latin American Journal of Solids and Structures, v. 15, n. 3, p. 1-24, 2018. Disponível em: <http://www.scielo.br/scielo.php?pid=S1679-78252018000300504&script=sci_abstract&tlng=en>. Acesso em: 03 mai. 2018. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/10261 |
dc.identifier.issn.none.fl_str_mv |
16797825 |
identifier_str_mv |
MAZON, A. A. O. et al. Numerical analysis of truss systems with stiffened flattened end-bars. Latin American Journal of Solids and Structures, v. 15, n. 3, p. 1-24, 2018. Disponível em: <http://www.scielo.br/scielo.php?pid=S1679-78252018000300504&script=sci_abstract&tlng=en>. Acesso em: 03 mai. 2018. 16797825 |
url |
http://www.repositorio.ufop.br/handle/123456789/10261 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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reponame:Repositório Institucional da UFOP instname:Universidade Federal de Ouro Preto (UFOP) instacron:UFOP |
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UFOP |
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Repositório Institucional da UFOP |
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