The effect of the load level on the fire resistance of partially encased columns
Autor(a) principal: | |
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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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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 |
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1799135421569957888 |