Evaluation of the reliability of optimized reinforced concrete beams

Detalhes bibliográficos
Autor(a) principal: Correia,Rubens Silva
Data de Publicação: 2022
Outros Autores: Bono,Giuliana Furtado Franca, Paliga,Charlei Marcelo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista IBRACON de Estruturas e Materiais
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000400209
Resumo: ABSTRACT In the present research, the reliability of optimized reinforced concrete beams was evaluated in different design situations. Simply supported beams were optimized to find the dimensions and reinforcements of the cross-section that minimize costs, meeting the criteria of technical codes, through genetic algorithms. For each optimized beam, the reliability index was obtained in relation to the ultimate limit state of flexure with the iHLRF algorithm, considering the uncertainties of the resistance and load models, loads and resistances. It wa s verified that the reliability indexes, in general, were higher than the minimum value of 3.8, recommended by technical codes, in design situations with little live load. Through a parametric study, trends were identified for the reliability index according to the design parameters and characteristics of the beams.
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spelling Evaluation of the reliability of optimized reinforced concrete beamsbeamsreinforced concretestructural optimizationstructural reliabilityABSTRACT In the present research, the reliability of optimized reinforced concrete beams was evaluated in different design situations. Simply supported beams were optimized to find the dimensions and reinforcements of the cross-section that minimize costs, meeting the criteria of technical codes, through genetic algorithms. For each optimized beam, the reliability index was obtained in relation to the ultimate limit state of flexure with the iHLRF algorithm, considering the uncertainties of the resistance and load models, loads and resistances. It wa s verified that the reliability indexes, in general, were higher than the minimum value of 3.8, recommended by technical codes, in design situations with little live load. Through a parametric study, trends were identified for the reliability index according to the design parameters and characteristics of the beams.IBRACON - Instituto Brasileiro do Concreto2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000400209Revista IBRACON de Estruturas e Materiais v.15 n.4 2022reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952022000400009info:eu-repo/semantics/openAccessCorreia,Rubens SilvaBono,Giuliana Furtado FrancaPaliga,Charlei Marceloeng2022-03-07T00:00:00Zoai:scielo:S1983-41952022000400209Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2022-03-07T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Evaluation of the reliability of optimized reinforced concrete beams
title Evaluation of the reliability of optimized reinforced concrete beams
spellingShingle Evaluation of the reliability of optimized reinforced concrete beams
Correia,Rubens Silva
beams
reinforced concrete
structural optimization
structural reliability
title_short Evaluation of the reliability of optimized reinforced concrete beams
title_full Evaluation of the reliability of optimized reinforced concrete beams
title_fullStr Evaluation of the reliability of optimized reinforced concrete beams
title_full_unstemmed Evaluation of the reliability of optimized reinforced concrete beams
title_sort Evaluation of the reliability of optimized reinforced concrete beams
author Correia,Rubens Silva
author_facet Correia,Rubens Silva
Bono,Giuliana Furtado Franca
Paliga,Charlei Marcelo
author_role author
author2 Bono,Giuliana Furtado Franca
Paliga,Charlei Marcelo
author2_role author
author
dc.contributor.author.fl_str_mv Correia,Rubens Silva
Bono,Giuliana Furtado Franca
Paliga,Charlei Marcelo
dc.subject.por.fl_str_mv beams
reinforced concrete
structural optimization
structural reliability
topic beams
reinforced concrete
structural optimization
structural reliability
description ABSTRACT In the present research, the reliability of optimized reinforced concrete beams was evaluated in different design situations. Simply supported beams were optimized to find the dimensions and reinforcements of the cross-section that minimize costs, meeting the criteria of technical codes, through genetic algorithms. For each optimized beam, the reliability index was obtained in relation to the ultimate limit state of flexure with the iHLRF algorithm, considering the uncertainties of the resistance and load models, loads and resistances. It wa s verified that the reliability indexes, in general, were higher than the minimum value of 3.8, recommended by technical codes, in design situations with little live load. Through a parametric study, trends were identified for the reliability index according to the design parameters and characteristics of the beams.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
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=S1983-41952022000400209
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000400209
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952022000400009
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 IBRACON - Instituto Brasileiro do Concreto
publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
dc.source.none.fl_str_mv Revista IBRACON de Estruturas e Materiais v.15 n.4 2022
reponame:Revista IBRACON de Estruturas e Materiais
instname:Instituto Brasileiro do Concreto (IBRACON)
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instname_str Instituto Brasileiro do Concreto (IBRACON)
instacron_str IBRACON
institution IBRACON
reponame_str Revista IBRACON de Estruturas e Materiais
collection Revista IBRACON de Estruturas e Materiais
repository.name.fl_str_mv Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)
repository.mail.fl_str_mv editores.riem@gmail.com||arlene@ibracon.org.br
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