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Influence of load-level and effective thickness on the fire resistance of composite slabs with steel deck

2021Artigo científico Acesso aberto
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dc.contributor.authorSantos, Lucas Manoel Cunha
dc.contributor.authorPiloto, P.A.G.
dc.contributor.authorBalsa, Carlos
dc.contributor.authorKimura, Érica Fernanda Aiko
dc.date.accessioned2022-01-13T12:03:27Z
dc.date.available2022-01-13T12:03:27Z
dc.date.issued2021
dc.description.abstractComposite slabs with steel deck have been used on building construction due to its fast-and-easy crafting that brings economic outstanding alternatives to architects and engineers on large-scale steel framed constructions. At room temperatures and in Europe, the designing procedures of composite slabs are defined by Eurocode 1994-1-1. When it comes to the fire safety analysis of these elements, the designing procedure requires more attention due to the direct exposition of the steel deck to fire, affecting the overall bending resistance. This importance is presented in Eurocode 1994-1-2, taking in consideration the integrity, insulation and load-bearing criteria. In this work the thermal and mechanical behavior of composite slabs with steel deck exposed to standard fire ISO 834 are studied through numerical simulations using Finite-Element Method (FEM). The model was previously validated with one experimental test from literature. The ANSYS Mechanical APDL software was used to develop a parametric study, simulating four different geometries with different load levels, comprehending a total of 126 thermal and mechanical simulations used to determine the correlation between load-level and fire resistance. As result, a new simplified method is proposed for the load bearing fire resistance of composite slabs, considering the effect of the effective thickness and the load level. The fire resistance decreases with the load level and increases with the thickness of the concrete. A new proposal is presented to determine the fire resistance, based on these two parameters.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSantos, Lucas; Piloto, P.A.G.; Balsa, Carlos; Kimura, Érica (2021). Influence of load-level and effective thickness on the fire resistance of composite slabs with steel deck. Journal of Computational Applied Mechanics. ISSN 2423-6713. 52:2, p. 193-205pt_PT
dc.identifier.doi10.22059/jcamech.2021.316155.583pt_PT
dc.identifier.eissn2423-6705
dc.identifier.issn2423-6713
dc.identifier.urihttp://hdl.handle.net/10198/24613
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectComposite slabspt_PT
dc.subjectSteel deckpt_PT
dc.subjectLoad levelpt_PT
dc.subjectFire resistancept_PT
dc.subjectNumerical simulationspt_PT
dc.titleInfluence of load-level and effective thickness on the fire resistance of composite slabs with steel deckpt_PT
dc.typejournal article
dspace.entity.typePublication
person.familyNamePiloto
person.familyNameBalsa
person.givenNamePaulo A.G.
person.givenNameCarlos
person.identifier1721518
person.identifier.ciencia-id0519-449D-6F13
person.identifier.ciencia-idDE1E-2F7A-AAB1
person.identifier.orcid0000-0003-2834-0501
person.identifier.orcid0000-0003-2431-8665
person.identifier.ridB-4866-2008
person.identifier.ridM-8735-2013
person.identifier.scopus-author-id6506406159
person.identifier.scopus-author-id23391719100
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationbaaee084-ab97-4c95-b636-24ab6bab0e3e
relation.isAuthorOfPublicationd0e5ccff-9696-4f4f-9567-8d698a6bf17d
relation.isAuthorOfPublication.latestForDiscoverybaaee084-ab97-4c95-b636-24ab6bab0e3e

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