M-N interaction curves for rectangular concrete-filled steel tube columns subjected to uniaxial bending moments

Detalhes bibliográficos
Autor(a) principal: Fernandes,Matheus
Data de Publicação: 2022
Outros Autores: De Nardin,Silvana, Almeida Filho,Fernando Menezes de
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=S1983-41952022000100204
Resumo: abstract: In this paper, a computational code was developed to obtain M-N interaction curves for rectangular concrete-filled steel tube columns considering the strain compatibility in the cross-section. Considering the composite section subjected to uniaxial bending moments, expressions were developed to determine normal force, moment resistance, neutral axis depth and components resistance of cross-section. Such expressions were implemented in a computational tool developed to the authors and that allows to obtain the M-N pairs of strength. The steel and concrete ultimate strains were defined with the aid of the Brazilian standard for reinforced concrete structures ABNT NBR 6118. The obtained results were compared to simplified curves defined according to the theoretical models of ABNT NBR 8800, ABNT NBR 16239, EN 1994-1-1 and literature data. The proposed model showed good agreement with literature results and had good precision to estimate the ultimate moment values. To further understand the resistance of composite columns under uniaxial bending moments, parametric study was performed to evaluate the influence of the compressive strength of concrete, yielding strength of steel and steel area ratio on M-N interaction curves. The results indicate that the yielding strength of steel and the steel area ratio were the variables that most influenced the values of composite columns resistance (normal force and bending moment).
id IBRACON-1_90e585b2c5baab6babfc3173435302f3
oai_identifier_str oai:scielo:S1983-41952022000100204
network_acronym_str IBRACON-1
network_name_str Revista IBRACON de Estruturas e Materiais
repository_id_str
spelling M-N interaction curves for rectangular concrete-filled steel tube columns subjected to uniaxial bending momentsconcrete-filled steel tube columnuniaxial bending momentM-N interaction curveabstract: In this paper, a computational code was developed to obtain M-N interaction curves for rectangular concrete-filled steel tube columns considering the strain compatibility in the cross-section. Considering the composite section subjected to uniaxial bending moments, expressions were developed to determine normal force, moment resistance, neutral axis depth and components resistance of cross-section. Such expressions were implemented in a computational tool developed to the authors and that allows to obtain the M-N pairs of strength. The steel and concrete ultimate strains were defined with the aid of the Brazilian standard for reinforced concrete structures ABNT NBR 6118. The obtained results were compared to simplified curves defined according to the theoretical models of ABNT NBR 8800, ABNT NBR 16239, EN 1994-1-1 and literature data. The proposed model showed good agreement with literature results and had good precision to estimate the ultimate moment values. To further understand the resistance of composite columns under uniaxial bending moments, parametric study was performed to evaluate the influence of the compressive strength of concrete, yielding strength of steel and steel area ratio on M-N interaction curves. The results indicate that the yielding strength of steel and the steel area ratio were the variables that most influenced the values of composite columns resistance (normal force and bending moment).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=S1983-41952022000100204Revista IBRACON de Estruturas e Materiais v.15 n.1 2022reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952022000100008info:eu-repo/semantics/openAccessFernandes,MatheusDe Nardin,SilvanaAlmeida Filho,Fernando Menezes deeng2021-07-26T00:00:00Zoai:scielo:S1983-41952022000100204Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2021-07-26T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv M-N interaction curves for rectangular concrete-filled steel tube columns subjected to uniaxial bending moments
title M-N interaction curves for rectangular concrete-filled steel tube columns subjected to uniaxial bending moments
spellingShingle M-N interaction curves for rectangular concrete-filled steel tube columns subjected to uniaxial bending moments
Fernandes,Matheus
concrete-filled steel tube column
uniaxial bending moment
M-N interaction curve
title_short M-N interaction curves for rectangular concrete-filled steel tube columns subjected to uniaxial bending moments
title_full M-N interaction curves for rectangular concrete-filled steel tube columns subjected to uniaxial bending moments
title_fullStr M-N interaction curves for rectangular concrete-filled steel tube columns subjected to uniaxial bending moments
title_full_unstemmed M-N interaction curves for rectangular concrete-filled steel tube columns subjected to uniaxial bending moments
title_sort M-N interaction curves for rectangular concrete-filled steel tube columns subjected to uniaxial bending moments
author Fernandes,Matheus
author_facet Fernandes,Matheus
De Nardin,Silvana
Almeida Filho,Fernando Menezes de
author_role author
author2 De Nardin,Silvana
Almeida Filho,Fernando Menezes de
author2_role author
author
dc.contributor.author.fl_str_mv Fernandes,Matheus
De Nardin,Silvana
Almeida Filho,Fernando Menezes de
dc.subject.por.fl_str_mv concrete-filled steel tube column
uniaxial bending moment
M-N interaction curve
topic concrete-filled steel tube column
uniaxial bending moment
M-N interaction curve
description abstract: In this paper, a computational code was developed to obtain M-N interaction curves for rectangular concrete-filled steel tube columns considering the strain compatibility in the cross-section. Considering the composite section subjected to uniaxial bending moments, expressions were developed to determine normal force, moment resistance, neutral axis depth and components resistance of cross-section. Such expressions were implemented in a computational tool developed to the authors and that allows to obtain the M-N pairs of strength. The steel and concrete ultimate strains were defined with the aid of the Brazilian standard for reinforced concrete structures ABNT NBR 6118. The obtained results were compared to simplified curves defined according to the theoretical models of ABNT NBR 8800, ABNT NBR 16239, EN 1994-1-1 and literature data. The proposed model showed good agreement with literature results and had good precision to estimate the ultimate moment values. To further understand the resistance of composite columns under uniaxial bending moments, parametric study was performed to evaluate the influence of the compressive strength of concrete, yielding strength of steel and steel area ratio on M-N interaction curves. The results indicate that the yielding strength of steel and the steel area ratio were the variables that most influenced the values of composite columns resistance (normal force and bending moment).
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=S1983-41952022000100204
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000100204
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952022000100008
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.1 2022
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
_version_ 1754193606557564928