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Steel mechanical properties evaluated at room temperature after being submitted at fire conditions

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dc.contributor.authorPiloto, P.A.G.
dc.contributor.authorVila Real, Paulo M.M.
dc.contributor.authorMesquita, L.M.R.
dc.contributor.authorVaz, M.A.P.
dc.date.accessioned2010-02-19T14:14:57Z
dc.date.available2010-02-19T14:14:57Z
dc.date.created2002en_US
dc.date.issued2002
dc.date.updated2010-01-29T17:13:44Z
dc.description.abstractSeveral researchers have already studied the effect of temperature increase in steel structures regarding load-bearing capacity and some material models have been developed in fire conditions, based on experimental results. The mechanical properties of a S275 JR steel construction material has been tested at elevated temperatures after a natural and forced cooling. The major focus has been made on yield and ultimate strength behavior, hardness material and residual stress relief. Experimental results will be presented for each temperature level, dwell time and cooling rate. Test results were compared with the normal room temperature condition. The material specimens were cutted from the web of each unit length IPE 100 profiles, after being heated by means of electro ceramic mat resistance and tested at the universal machine, according to NP EN 10002-1 standard. Microstructure analysis has been done regarding each different steel state, based on the standard NP-1467. The hardness tests has been determined for some steel specimen conditions over the entire cross section, according to NP 4072 standard. The results shown that material yield strength from the tested heated specimens are smaller and grater when compared with the yield strength of the used material at room temperature, depending on the temperature level during fire and respective cooling rate. Residual stresses were measured as closed as possible to ASTM E837-01. A stress relief was thermally induced and the final stress state measured and compared with the initial state.pt
dc.description.sponsorshipThis work was performed in the course of the research project PRAXIS/P/ECM/14176/1998, sponsored by the Portuguese Foundation for Science and Technology. Special thanks are due to the enterprise J. Soares Correia.
dc.identifier.citationPiloto, P.A.G.; Vila Real, P.M.M.; Mesquita, L.M.R.; Vaz, M.A.P. (2002). Steel mechanical properties evaluated at room temperature after being submitted at fire conditions. In XXX IAHS World Congress on Housing Housing Construction: An Interdisciplinary Task. Coimbra, Portugal.pt
dc.identifier.urihttp://hdl.handle.net/10198/2039
dc.language.isoengpt
dc.subjectMechanical propertiespt
dc.subjectFire conditionspt
dc.subjectResidual stress reliefpt
dc.subjectMetallurgic phase transformationpt
dc.titleSteel mechanical properties evaluated at room temperature after being submitted at fire conditionspt
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceCoimbrapt
oaire.citation.titleXXX IAHS World Congress on Housing Housing Construction: An Interdisciplinary Taskpt
person.familyNamePiloto
person.familyNameMesquita
person.givenNamePaulo A.G.
person.givenNameLuís M.R.
person.identifier1339117
person.identifier.ciencia-id0519-449D-6F13
person.identifier.ciencia-id401E-2FEC-8303
person.identifier.orcid0000-0003-2834-0501
person.identifier.orcid0000-0002-2385-4282
person.identifier.ridB-4866-2008
person.identifier.ridF-2269-2010
person.identifier.scopus-author-id6506406159
person.identifier.scopus-author-id8585923500
rcaap.rightsopenAccesspt
rcaap.typeconferenceObjectpt
relation.isAuthorOfPublicationbaaee084-ab97-4c95-b636-24ab6bab0e3e
relation.isAuthorOfPublication3d08baba-b032-42c4-8244-94672c4611a1
relation.isAuthorOfPublication.latestForDiscoverybaaee084-ab97-4c95-b636-24ab6bab0e3e

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