The effect of the load level on the fire resistance of partially encased columns

Detalhes bibliográficos
Autor(a) principal: Mellef, Mehdi
Data de Publicação: 2018
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/23297
Resumo: Mestrado de dupla diplomação com a Université Libre de Tunis
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spelling The effect of the load level on the fire resistance of partially encased columnsPartially encased columnsComposite columnsFire resistanceBalanced summation methodANSYSBuckling resistanceDomínio/Área Científica::Engenharia e Tecnologia::Engenharia CivilMestrado de dupla diplomação com a Université Libre de TunisPartially encased composite columns (PEC) present better structural performance under fire situation than simple steel columns. Thus, it is not possible to calculate the fire resistance of its components, taking just into account the temperature of the steel, because the concrete increases considerably the fire resistance of the column. However, the annex G of EN 1994-1-2presents the balanced summation method to determine the fire resistance of the partially encased columns, by calculating the buckling resistance around the weak axis when exposed to the standard fire curve ISO834 for different fire ratings. Thereafter a new proposal was presented to improve this simple method, taking into consideration the average temperature of all components of the cross section, the residual height of the web based on 400ºC isothermal and the residual concrete area based on the 500ºC isothermal. Later the finite element method is used to calculate the buckling resistance of partially encased columns using an incremental and iterative procedure, investigating the behavior of thirty different PEC cross sections, being ten of each specified steel profile series (HEA, HEB and HD) for two different columns height (3 and 4 meter). The results of the numerical solution are compared with the balanced summation method of annex G from EN 1994-1-2 as well the new proposed solution model.Piloto, P.A.G.Biblioteca Digital do IPBMellef, Mehdi2021-02-16T10:39:30Z201920182019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10198/23297TID:202585352enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-21T10:51:54Zoai:bibliotecadigital.ipb.pt:10198/23297Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:14:14.442065Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv The effect of the load level on the fire resistance of partially encased columns
title The effect of the load level on the fire resistance of partially encased columns
spellingShingle The effect of the load level on the fire resistance of partially encased columns
Mellef, Mehdi
Partially encased columns
Composite columns
Fire resistance
Balanced summation method
ANSYS
Buckling resistance
Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Civil
title_short The effect of the load level on the fire resistance of partially encased columns
title_full The effect of the load level on the fire resistance of partially encased columns
title_fullStr The effect of the load level on the fire resistance of partially encased columns
title_full_unstemmed The effect of the load level on the fire resistance of partially encased columns
title_sort The effect of the load level on the fire resistance of partially encased columns
author Mellef, Mehdi
author_facet Mellef, Mehdi
author_role author
dc.contributor.none.fl_str_mv Piloto, P.A.G.
Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Mellef, Mehdi
dc.subject.por.fl_str_mv Partially encased columns
Composite columns
Fire resistance
Balanced summation method
ANSYS
Buckling resistance
Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Civil
topic Partially encased columns
Composite columns
Fire resistance
Balanced summation method
ANSYS
Buckling resistance
Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Civil
description Mestrado de dupla diplomação com a Université Libre de Tunis
publishDate 2018
dc.date.none.fl_str_mv 2018
2019
2019-01-01T00:00:00Z
2021-02-16T10:39:30Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10198/23297
TID:202585352
url http://hdl.handle.net/10198/23297
identifier_str_mv TID:202585352
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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