Load carrying capacity of partially encased columns for different fire ratings
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10198/16486 |
Resumo: | Partially encased columns have significant fire resistance in comparison with steel bare columns. However, it is not possible to assess the fire resistance of such members simply by considering the temperature of the steel. The presence of concrete increases the mass and thermal inertia of the member and the variation of temperature within the cross section, in both the steel and concrete components. The annex G of EN1994-1-2:20051 allows to calculate the load carrying capacity of partially encased columns, for a specific fire rating time, considering the balanced summation model. New formulas will be proposed to calculate the plastic resistance to axial compression and the effective flexural stiffness. These two parameters are used to determine the buckling resistance. The finite element method is used to compare the results for the elastic critical load and the load carrying capacity of partially encased columns for different fire ratings of 30 and 60 min. This work compares the results from both solution methods, provides the validation of the three-dimensional model and demonstrates that a new design curve should be used for the buckling analysis of partially encased columns. |
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Load carrying capacity of partially encased columns for different fire ratingsPartially encased columnsStabilityFire resistanceBalanced summation modelPartially encased columns have significant fire resistance in comparison with steel bare columns. However, it is not possible to assess the fire resistance of such members simply by considering the temperature of the steel. The presence of concrete increases the mass and thermal inertia of the member and the variation of temperature within the cross section, in both the steel and concrete components. The annex G of EN1994-1-2:20051 allows to calculate the load carrying capacity of partially encased columns, for a specific fire rating time, considering the balanced summation model. New formulas will be proposed to calculate the plastic resistance to axial compression and the effective flexural stiffness. These two parameters are used to determine the buckling resistance. The finite element method is used to compare the results for the elastic critical load and the load carrying capacity of partially encased columns for different fire ratings of 30 and 60 min. This work compares the results from both solution methods, provides the validation of the three-dimensional model and demonstrates that a new design curve should be used for the buckling analysis of partially encased columns.Biblioteca Digital do IPBFellouh, AbdelkadirBenlakehal, Nourredine O.Piloto, P.A.G.Ramos Gavilán, Ana BelénMesquita, L.M.R.2018-03-23T11:18:08Z20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/16486engFellouh, Abdelkadir; Benlakehal, Nourredine; Piloto, P.A.G.; Ramos, Ana; Mesquita, L.M.R. (2016). Load carrying capacity of partially encased columns for different fire ratings. Fire Research 2016. 1:23, p. 13-1910.4081/fire.2017.23info: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:RCAAP2023-11-21T10:38:04Zoai:bibliotecadigital.ipb.pt:10198/16486Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:05:53.523822Repositório 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 |
Load carrying capacity of partially encased columns for different fire ratings |
title |
Load carrying capacity of partially encased columns for different fire ratings |
spellingShingle |
Load carrying capacity of partially encased columns for different fire ratings Fellouh, Abdelkadir Partially encased columns Stability Fire resistance Balanced summation model |
title_short |
Load carrying capacity of partially encased columns for different fire ratings |
title_full |
Load carrying capacity of partially encased columns for different fire ratings |
title_fullStr |
Load carrying capacity of partially encased columns for different fire ratings |
title_full_unstemmed |
Load carrying capacity of partially encased columns for different fire ratings |
title_sort |
Load carrying capacity of partially encased columns for different fire ratings |
author |
Fellouh, Abdelkadir |
author_facet |
Fellouh, Abdelkadir Benlakehal, Nourredine O. Piloto, P.A.G. Ramos Gavilán, Ana Belén Mesquita, L.M.R. |
author_role |
author |
author2 |
Benlakehal, Nourredine O. Piloto, P.A.G. Ramos Gavilán, Ana Belén Mesquita, L.M.R. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Fellouh, Abdelkadir Benlakehal, Nourredine O. Piloto, P.A.G. Ramos Gavilán, Ana Belén Mesquita, L.M.R. |
dc.subject.por.fl_str_mv |
Partially encased columns Stability Fire resistance Balanced summation model |
topic |
Partially encased columns Stability Fire resistance Balanced summation model |
description |
Partially encased columns have significant fire resistance in comparison with steel bare columns. However, it is not possible to assess the fire resistance of such members simply by considering the temperature of the steel. The presence of concrete increases the mass and thermal inertia of the member and the variation of temperature within the cross section, in both the steel and concrete components. The annex G of EN1994-1-2:20051 allows to calculate the load carrying capacity of partially encased columns, for a specific fire rating time, considering the balanced summation model. New formulas will be proposed to calculate the plastic resistance to axial compression and the effective flexural stiffness. These two parameters are used to determine the buckling resistance. The finite element method is used to compare the results for the elastic critical load and the load carrying capacity of partially encased columns for different fire ratings of 30 and 60 min. This work compares the results from both solution methods, provides the validation of the three-dimensional model and demonstrates that a new design curve should be used for the buckling analysis of partially encased columns. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2016-01-01T00:00:00Z 2018-03-23T11:18:08Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10198/16486 |
url |
http://hdl.handle.net/10198/16486 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Fellouh, Abdelkadir; Benlakehal, Nourredine; Piloto, P.A.G.; Ramos, Ana; Mesquita, L.M.R. (2016). Load carrying capacity of partially encased columns for different fire ratings. Fire Research 2016. 1:23, p. 13-19 10.4081/fire.2017.23 |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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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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1799135310719746048 |