Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in fire
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , |
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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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 |
_version_ |
1754193605563514880 |