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Accuracy of 2D numerical models towards the prediction of the fire resistance on LSF partition walls

2023Journal article Open access
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dc.contributor.authorPiloto, P.A.G.
dc.contributor.authorGomes, Stephan
dc.contributor.authorTorres, Leonardo
dc.contributor.authorCouto, Carlos
dc.contributor.authorReal, Paulo Vila
dc.date.accessioned2020-06-17T08:28:04Z
dc.date.available2020-06-17T08:28:04Z
dc.date.issued2023
dc.description.abstractLightweight steel framing (LSF) walls are commonly used in modern buildings due to their high strength-to -weight ratio and readiness for installation. However, empty cavities within these walls can pose a fire risk if not properly addressed. In order to ensure the fire resistance and performance of LSF walls with empty cavities, various modelling techniques can be employed. Two-dimensional thermal models can also be used to simulate the behaviour of LSF walls with empty cavities in a fire scenario. These models can predict the spread of heat through the empty cavity, allowing designers to identify potential fire hazards and make adjustments to the design to mitigate those risks.Three different computational solution methods were used to compare the fire performance of LSF walls with void cavities. Solution method 1 considers the air-structure interaction in the cavity region. Solution method 2 considers the existence of interface elements for the radiation heat transfer in the cavity region allowing the cavity temperature prediction. Solution method 3 considers the convection and radiation in the cavity region with a prescribed cavity temperature from experiments (hybrid). Solution methods 1 and 3 give a small root mean square error (RMSE), when compared with solution method 2. Solution method 3 gives a better approx-imation because can capture the main fire events during the fire, such as the cracks and fall off. Based on the parametric study, a new proposal is presented to predict the fire resistance by insulation, depending on the gypsum type and thickness.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPiloto, P.A.G.; Gomes, Stephan; Torres, Leonardo; Couto, Carlos; Real, Paulo Vila (2023). Accuracy of 2D numerical models towards the prediction of the fire resistance on LSF partition walls. International Journal of Thermal Sciences. eISSN 1778-4166. 193, p. 1-20pt_PT
dc.identifier.doi10.1016/j.ijthermalsci.2023.108511
dc.identifier.eissn1778-4166
dc.identifier.issn1290-0729
dc.identifier.urihttp://hdl.handle.net/10198/22075
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectFirept_PT
dc.subjectLSF wallspt_PT
dc.subjectComputational modelspt_PT
dc.subjectFinite volume method
dc.subjectHybrid finite element method
dc.titleAccuracy of 2D numerical models towards the prediction of the fire resistance on LSF partition wallspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleInternational Journal of Thermal Sciencespt_PT
person.familyNamePiloto
person.givenNamePaulo A.G.
person.identifier.ciencia-id0519-449D-6F13
person.identifier.orcid0000-0003-2834-0501
person.identifier.ridB-4866-2008
person.identifier.scopus-author-id6506406159
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationbaaee084-ab97-4c95-b636-24ab6bab0e3e
relation.isAuthorOfPublication.latestForDiscoverybaaee084-ab97-4c95-b636-24ab6bab0e3e

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