Comparison of two FORM methodologies for reinforced concrete beams under flexure
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/232724 |
Resumo: | The response of a reinforced concrete structure is influenced by the variability of design parameters such as materials strengths, geometry, and load intensity. One of the most rational ways to assess the safety level of a reinforced concrete structure is to employ a probabilistic approach. This paper aims to compare the reliability indexes for a set of reinforced concrete beams according to two different methodologies, based on the association of First Order Reliability Method (FORM) with the ANSYS software. In the first methodology, the reliability indexes were assessed through the direct coupling of the FORM to the Finite Element model. In the second methodology, a response surface was employed to fit a flexural resistance function, based on the FE results, being the reliability indexes assessed by an external FORM algorithm. The results showed that both methodologies led to equivalent reliability indexes and that the safety level of the beams, which were designed according to the Brazilian code NBR 6118:2014, is mainly influenced by the load combination, presenting unsatisfactory values when the live load increases. |
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Scherer, MailsonTitello, Eduardo PagnussatMorsch, Inacio BenvegnuReal, Mauro de VasconcellosCampos Filho, Americo2021-12-09T04:35:47Z20211679-7825http://hdl.handle.net/10183/232724001133097The response of a reinforced concrete structure is influenced by the variability of design parameters such as materials strengths, geometry, and load intensity. One of the most rational ways to assess the safety level of a reinforced concrete structure is to employ a probabilistic approach. This paper aims to compare the reliability indexes for a set of reinforced concrete beams according to two different methodologies, based on the association of First Order Reliability Method (FORM) with the ANSYS software. In the first methodology, the reliability indexes were assessed through the direct coupling of the FORM to the Finite Element model. In the second methodology, a response surface was employed to fit a flexural resistance function, based on the FE results, being the reliability indexes assessed by an external FORM algorithm. The results showed that both methodologies led to equivalent reliability indexes and that the safety level of the beams, which were designed according to the Brazilian code NBR 6118:2014, is mainly influenced by the load combination, presenting unsatisfactory values when the live load increases.application/pdfengLatin american journal of solids and structures [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 18, no. 7 (2021), Art. e402, 16 p.Vigas de concreto armadoEstruturas (Engenharia) : ConfiabilidadeElementos finitosStructural reliabilityReinforced concrete beamFinite Element MethodFORMResponse Surface MethodComparison of two FORM methodologies for reinforced concrete beams under flexureinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001133097.pdf.txt001133097.pdf.txtExtracted Texttext/plain49486http://www.lume.ufrgs.br/bitstream/10183/232724/2/001133097.pdf.txt52ee27b4e46614c75966ecfde0f88194MD52ORIGINAL001133097.pdfTexto completo (inglês)application/pdf1045227http://www.lume.ufrgs.br/bitstream/10183/232724/1/001133097.pdff0318dee50a114137d641be08d9ac783MD5110183/2327242021-12-19 05:30:01.242459oai:www.lume.ufrgs.br:10183/232724Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-12-19T07:30:01Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Comparison of two FORM methodologies for reinforced concrete beams under flexure |
title |
Comparison of two FORM methodologies for reinforced concrete beams under flexure |
spellingShingle |
Comparison of two FORM methodologies for reinforced concrete beams under flexure Scherer, Mailson Vigas de concreto armado Estruturas (Engenharia) : Confiabilidade Elementos finitos Structural reliability Reinforced concrete beam Finite Element Method FORM Response Surface Method |
title_short |
Comparison of two FORM methodologies for reinforced concrete beams under flexure |
title_full |
Comparison of two FORM methodologies for reinforced concrete beams under flexure |
title_fullStr |
Comparison of two FORM methodologies for reinforced concrete beams under flexure |
title_full_unstemmed |
Comparison of two FORM methodologies for reinforced concrete beams under flexure |
title_sort |
Comparison of two FORM methodologies for reinforced concrete beams under flexure |
author |
Scherer, Mailson |
author_facet |
Scherer, Mailson Titello, Eduardo Pagnussat Morsch, Inacio Benvegnu Real, Mauro de Vasconcellos Campos Filho, Americo |
author_role |
author |
author2 |
Titello, Eduardo Pagnussat Morsch, Inacio Benvegnu Real, Mauro de Vasconcellos Campos Filho, Americo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Scherer, Mailson Titello, Eduardo Pagnussat Morsch, Inacio Benvegnu Real, Mauro de Vasconcellos Campos Filho, Americo |
dc.subject.por.fl_str_mv |
Vigas de concreto armado Estruturas (Engenharia) : Confiabilidade Elementos finitos |
topic |
Vigas de concreto armado Estruturas (Engenharia) : Confiabilidade Elementos finitos Structural reliability Reinforced concrete beam Finite Element Method FORM Response Surface Method |
dc.subject.eng.fl_str_mv |
Structural reliability Reinforced concrete beam Finite Element Method FORM Response Surface Method |
description |
The response of a reinforced concrete structure is influenced by the variability of design parameters such as materials strengths, geometry, and load intensity. One of the most rational ways to assess the safety level of a reinforced concrete structure is to employ a probabilistic approach. This paper aims to compare the reliability indexes for a set of reinforced concrete beams according to two different methodologies, based on the association of First Order Reliability Method (FORM) with the ANSYS software. In the first methodology, the reliability indexes were assessed through the direct coupling of the FORM to the Finite Element model. In the second methodology, a response surface was employed to fit a flexural resistance function, based on the FE results, being the reliability indexes assessed by an external FORM algorithm. The results showed that both methodologies led to equivalent reliability indexes and that the safety level of the beams, which were designed according to the Brazilian code NBR 6118:2014, is mainly influenced by the load combination, presenting unsatisfactory values when the live load increases. |
publishDate |
2021 |
dc.date.accessioned.fl_str_mv |
2021-12-09T04:35:47Z |
dc.date.issued.fl_str_mv |
2021 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/232724 |
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1679-7825 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001133097 |
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http://hdl.handle.net/10183/232724 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Latin american journal of solids and structures [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 18, no. 7 (2021), Art. e402, 16 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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