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Non-linear buckling analysis of composite columns made from high and normal strength concrete under fire

dc.contributor.authorFellouh, Abdelkadir
dc.contributor.authorBougara, Abdelkader
dc.contributor.authorPiloto, P.A.G.
dc.contributor.authorBenlakehal, Nourredine O.
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2020-01-03T17:07:03Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2020-01-03T17:07:03Z
dc.date.issued2019
dc.description.abstractComposite structures made from the combination of steel profile and concrete have significant loadbearing capacity which depends on the behaviour of the two material components and their interaction, particularly in fire conditions. It is not possible to assess the fire resistance of composite members only by considering the temperature of the steel, because the presence of the concrete may contribute greatly to increase the resistance, strength and thermal inertia of the member, which improves consequently the fire behaviour of the element. The aim of this work is to develop an efficient non-linear 3D finite element model to investigate the behaviour of pin-ended axially loaded composite column made from high strength concrete (HSC) and normal strength concrete (NSC) at different fire rating classes. Two types of column section were selected, notably HEB 160 profile totally encased with concrete and HEB220 partially encased with concrete. The fire behaviour of the columns was tested according to ISO834 standard fire. The results show that the use of HSC in composite columns reduces the level of fire protection with the regard to NSC. NSC in composite structures accommodates higher deflections than HSC, which is safer in case of fire accident. The mechanical resistance in composite columns at room temperature is reduced more than twice after 30 min of fire exposure.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationFellouh, Abdelkadir; Bougara, Abdelkader; Piloto, Paulo A.G.; Benlakehal, Nourredine (2019). Non-linear buckling analysis of composite columns made from high and normal strength concrete under fire. Asian Journal of Civil Engineering. ISSN 1563-0854. p. 1-11en_EN
dc.identifier.doi10.1007/s42107-019-00180-8en_EN
dc.identifier.issn1563-0854
dc.identifier.urihttp://hdl.handle.net/10198/20087
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.subjectBucklingen_EN
dc.subjectComposite columnen_EN
dc.subjectConcreteen_EN
dc.subjectFinite elementsen_EN
dc.subjectFireen_EN
dc.subjectNon-linearen_EN
dc.titleNon-linear buckling analysis of composite columns made from high and normal strength concrete under fireen_EN
dc.typejournal article
dspace.entity.typePublication
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.rightsopenAccessen_EN
rcaap.typearticleen_EN
relation.isAuthorOfPublicationbaaee084-ab97-4c95-b636-24ab6bab0e3e
relation.isAuthorOfPublication.latestForDiscoverybaaee084-ab97-4c95-b636-24ab6bab0e3e

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