Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in fire

Detalhes bibliográficos
Autor(a) principal: SIMÕES,Y. S.
Data de Publicação: 2018
Outros Autores: ROCHA,F. M., MUNAIAR NETO,J.
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=S1983-41952018000400876
Resumo: Abstract The bare steel structural members have a low fire resistance. However, in steel and concrete composite members, the concrete encasement, besides the contribution to the stiffness of the whole system, reduces the amount of heat that reaches the steel profile, increasing the its fire resistance. The aim of this paper is to conduct a numerical study on the behavior of steel and steel and concrete composite columns in fire, in order to compare their performance based on the variation of parameters such as the stiffness of the surrounding structure, geometric imperfection and load ratio. It has been found that, in general, the intensity of the geometric imperfection and stiffness of the surrounding structure does not affect the fire resistance of steel and composite columns. However, the stiffness of the surrounding structure raised the maximum value of the restraining forces generate throughout the heating. Regarding the load ratio, when increased, the fire resistance and critical temperature decreased.
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spelling Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in firesteel and concrete composite columnssteel columnsnumerical studyfirefire resistenceAbstract The bare steel structural members have a low fire resistance. However, in steel and concrete composite members, the concrete encasement, besides the contribution to the stiffness of the whole system, reduces the amount of heat that reaches the steel profile, increasing the its fire resistance. The aim of this paper is to conduct a numerical study on the behavior of steel and steel and concrete composite columns in fire, in order to compare their performance based on the variation of parameters such as the stiffness of the surrounding structure, geometric imperfection and load ratio. It has been found that, in general, the intensity of the geometric imperfection and stiffness of the surrounding structure does not affect the fire resistance of steel and composite columns. However, the stiffness of the surrounding structure raised the maximum value of the restraining forces generate throughout the heating. Regarding the load ratio, when increased, the fire resistance and critical temperature decreased.IBRACON - Instituto Brasileiro do Concreto2018-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000400876Revista IBRACON de Estruturas e Materiais v.11 n.4 2018reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952018000400012info:eu-repo/semantics/openAccessSIMÕES,Y. S.ROCHA,F. M.MUNAIAR NETO,J.eng2018-09-04T00:00:00Zoai:scielo:S1983-41952018000400876Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2018-09-04T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in fire
title Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in fire
spellingShingle Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in fire
SIMÕES,Y. S.
steel and concrete composite columns
steel columns
numerical study
fire
fire resistence
title_short Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in fire
title_full Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in fire
title_fullStr Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in fire
title_full_unstemmed Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in fire
title_sort Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in fire
author SIMÕES,Y. S.
author_facet SIMÕES,Y. S.
ROCHA,F. M.
MUNAIAR NETO,J.
author_role author
author2 ROCHA,F. M.
MUNAIAR NETO,J.
author2_role author
author
dc.contributor.author.fl_str_mv SIMÕES,Y. S.
ROCHA,F. M.
MUNAIAR NETO,J.
dc.subject.por.fl_str_mv steel and concrete composite columns
steel columns
numerical study
fire
fire resistence
topic steel and concrete composite columns
steel columns
numerical study
fire
fire resistence
description Abstract The bare steel structural members have a low fire resistance. However, in steel and concrete composite members, the concrete encasement, besides the contribution to the stiffness of the whole system, reduces the amount of heat that reaches the steel profile, increasing the its fire resistance. The aim of this paper is to conduct a numerical study on the behavior of steel and steel and concrete composite columns in fire, in order to compare their performance based on the variation of parameters such as the stiffness of the surrounding structure, geometric imperfection and load ratio. It has been found that, in general, the intensity of the geometric imperfection and stiffness of the surrounding structure does not affect the fire resistance of steel and composite columns. However, the stiffness of the surrounding structure raised the maximum value of the restraining forces generate throughout the heating. Regarding the load ratio, when increased, the fire resistance and critical temperature decreased.
publishDate 2018
dc.date.none.fl_str_mv 2018-08-01
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=S1983-41952018000400876
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000400876
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952018000400012
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.11 n.4 2018
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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