Comparison of two FORM methodologies for reinforced concrete beams under flexure
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Latin American journal of solids and structures (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000700506 |
Resumo: | Abstract 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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Latin American journal of solids and structures (Online) |
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spelling |
Comparison of two FORM methodologies for reinforced concrete beams under flexurestructural reliabilityreinforced concrete beamFinite Element MethodFORMResponse Surface MethodAbstract 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.Associação Brasileira de Ciências Mecânicas2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000700506Latin American Journal of Solids and Structures v.18 n.7 2021reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78256670info:eu-repo/semantics/openAccessScherer,MaílsonTitello,Eduardo PagnussatMorsch,Inácio BenvegnuReal,Mauro de VasconcellosCampos Filho,Américoeng2021-10-28T00:00:00Zoai:scielo:S1679-78252021000700506Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2021-10-28T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.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,Maílson 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,Maílson |
author_facet |
Scherer,Maílson Titello,Eduardo Pagnussat Morsch,Inácio Benvegnu Real,Mauro de Vasconcellos Campos Filho,Américo |
author_role |
author |
author2 |
Titello,Eduardo Pagnussat Morsch,Inácio Benvegnu Real,Mauro de Vasconcellos Campos Filho,Américo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Scherer,Maílson Titello,Eduardo Pagnussat Morsch,Inácio Benvegnu Real,Mauro de Vasconcellos Campos Filho,Américo |
dc.subject.por.fl_str_mv |
structural reliability reinforced concrete beam Finite Element Method FORM Response Surface Method |
topic |
structural reliability reinforced concrete beam Finite Element Method FORM Response Surface Method |
description |
Abstract 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.none.fl_str_mv |
2021-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000700506 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000700506 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78256670 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
dc.source.none.fl_str_mv |
Latin American Journal of Solids and Structures v.18 n.7 2021 reponame:Latin American journal of solids and structures (Online) instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) instacron:ABCM |
instname_str |
Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
instacron_str |
ABCM |
institution |
ABCM |
reponame_str |
Latin American journal of solids and structures (Online) |
collection |
Latin American journal of solids and structures (Online) |
repository.name.fl_str_mv |
Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
repository.mail.fl_str_mv |
abcm@abcm.org.br||maralves@usp.br |
_version_ |
1754302890827055104 |