Shear-torsion-bending interaction in RC beams according to NBR 6118/2014 and AASHTO LRFD 2014

Detalhes bibliográficos
Autor(a) principal: Almeida,Vinícius Belarmino
Data de Publicação: 2023
Outros Autores: Horowitz,Bernardo
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=S1983-41952023000100202
Resumo: abstract: Reinforced concrete beams are subjected to bending, torsion and shear simultaneously. The interaction of combined loading is complex and demands a unified model for analysis and design. Using the models from NBR 6118/2014 (variable angle truss model with parallel chords) and AASHTO LRFD Bridge Design Specifications 2014 (Modified Compression Field Theory), an algorithm was created, converting the resistance problem into a constrained optimization problem and generating an interaction surface that also displays the active constraints for each degree of interaction. Applying it to three beams previously tested, the experimental data was plotted against the surface obtained by the standards. The procedure and its optimization approach were efficient and effective in predicting the beams’ resistance. Comparison between the interaction surfaces, empirical data and existing literature showed the procedure and the standards were consistent and its application simple and practical.
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spelling Shear-torsion-bending interaction in RC beams according to NBR 6118/2014 and AASHTO LRFD 2014reinforced concretebendingtorsionshearinteractionoptimizationNBR 6118AASHTO LRFDabstract: Reinforced concrete beams are subjected to bending, torsion and shear simultaneously. The interaction of combined loading is complex and demands a unified model for analysis and design. Using the models from NBR 6118/2014 (variable angle truss model with parallel chords) and AASHTO LRFD Bridge Design Specifications 2014 (Modified Compression Field Theory), an algorithm was created, converting the resistance problem into a constrained optimization problem and generating an interaction surface that also displays the active constraints for each degree of interaction. Applying it to three beams previously tested, the experimental data was plotted against the surface obtained by the standards. The procedure and its optimization approach were efficient and effective in predicting the beams’ resistance. Comparison between the interaction surfaces, empirical data and existing literature showed the procedure and the standards were consistent and its application simple and practical.IBRACON - Instituto Brasileiro do Concreto2023-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952023000100202Revista IBRACON de Estruturas e Materiais v.16 n.1 2023reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952023000100002info:eu-repo/semantics/openAccessAlmeida,Vinícius BelarminoHorowitz,Bernardoeng2022-05-03T00:00:00Zoai:scielo:S1983-41952023000100202Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2022-05-03T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Shear-torsion-bending interaction in RC beams according to NBR 6118/2014 and AASHTO LRFD 2014
title Shear-torsion-bending interaction in RC beams according to NBR 6118/2014 and AASHTO LRFD 2014
spellingShingle Shear-torsion-bending interaction in RC beams according to NBR 6118/2014 and AASHTO LRFD 2014
Almeida,Vinícius Belarmino
reinforced concrete
bending
torsion
shear
interaction
optimization
NBR 6118
AASHTO LRFD
title_short Shear-torsion-bending interaction in RC beams according to NBR 6118/2014 and AASHTO LRFD 2014
title_full Shear-torsion-bending interaction in RC beams according to NBR 6118/2014 and AASHTO LRFD 2014
title_fullStr Shear-torsion-bending interaction in RC beams according to NBR 6118/2014 and AASHTO LRFD 2014
title_full_unstemmed Shear-torsion-bending interaction in RC beams according to NBR 6118/2014 and AASHTO LRFD 2014
title_sort Shear-torsion-bending interaction in RC beams according to NBR 6118/2014 and AASHTO LRFD 2014
author Almeida,Vinícius Belarmino
author_facet Almeida,Vinícius Belarmino
Horowitz,Bernardo
author_role author
author2 Horowitz,Bernardo
author2_role author
dc.contributor.author.fl_str_mv Almeida,Vinícius Belarmino
Horowitz,Bernardo
dc.subject.por.fl_str_mv reinforced concrete
bending
torsion
shear
interaction
optimization
NBR 6118
AASHTO LRFD
topic reinforced concrete
bending
torsion
shear
interaction
optimization
NBR 6118
AASHTO LRFD
description abstract: Reinforced concrete beams are subjected to bending, torsion and shear simultaneously. The interaction of combined loading is complex and demands a unified model for analysis and design. Using the models from NBR 6118/2014 (variable angle truss model with parallel chords) and AASHTO LRFD Bridge Design Specifications 2014 (Modified Compression Field Theory), an algorithm was created, converting the resistance problem into a constrained optimization problem and generating an interaction surface that also displays the active constraints for each degree of interaction. Applying it to three beams previously tested, the experimental data was plotted against the surface obtained by the standards. The procedure and its optimization approach were efficient and effective in predicting the beams’ resistance. Comparison between the interaction surfaces, empirical data and existing literature showed the procedure and the standards were consistent and its application simple and practical.
publishDate 2023
dc.date.none.fl_str_mv 2023-01-01
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=S1983-41952023000100202
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952023000100202
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952023000100002
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.16 n.1 2023
reponame:Revista IBRACON de Estruturas e Materiais
instname:Instituto Brasileiro do Concreto (IBRACON)
instacron:IBRACON
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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