Response of high-strength steel beam and single-storey frame in fire : Numerical simulation

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorShakil, Saanien_US
dc.contributor.authorLu, Weien_US
dc.contributor.authorPuttonen, Jarien_US
dc.contributor.departmentDepartment of Civil Engineeringen
dc.date.accessioned2018-08-01T13:32:45Z
dc.date.available2018-08-01T13:32:45Z
dc.date.embargoinfo:eu-repo/date/embargoEnd/2020-06-21en_US
dc.date.issued2018-09-01en_US
dc.description.abstractThe design principles for high strength steel (HSS) structures exposed to fire are under development. In this paper, the response of HSS structures in fire is studied through numerical simulation of a beam and a two-bay frame. Geometrical imperfections and residual stresses are introduced into the structural models. Deformation limit criteria are used to compare the critical temperatures of the structures made of HSS and mild steel. The comparisons show that HSS structures have higher strength reserve than mild steel structures. Using the mechanical properties at elevated temperatures from literature sources, it is observed that the deflection behaviour of the studied structures depends on the ratio of strength to elastic modulus. The deflection of the studied beam is sensitive to yield strength reduction factors as the beam fails by plastic hinge mechanism. Whereas, the deflection of the HSS frame is sensitive to the reduction factors of the elastic modulus as the frame fails by inelastic instability. The above-mentioned observations on the studied structures are made using a three-stage mechanism which is developed for interpreting the deformation response.en
dc.description.versionPeer revieweden
dc.format.extent11
dc.format.extent551-561
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationShakil, S, Lu, W & Puttonen, J 2018, ' Response of high-strength steel beam and single-storey frame in fire : Numerical simulation ', Journal of Constructional Steel Research, vol. 148, pp. 551-561 . https://doi.org/10.1016/j.jcsr.2018.06.010en
dc.identifier.doi10.1016/j.jcsr.2018.06.010en_US
dc.identifier.issn0143-974X
dc.identifier.otherPURE UUID: b17db641-14bf-4ec1-ab53-e3286caac282en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/b17db641-14bf-4ec1-ab53-e3286caac282en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85048785413&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/26099963/ENG_Shakil_Saani_et_al_Response_of_high_strength_Journal_of_constructional_steel_research.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/32881
dc.identifier.urnURN:NBN:fi:aalto-201808014282
dc.language.isoenen
dc.relation.ispartofseriesJOURNAL OF CONSTRUCTIONAL STEEL RESEARCHen
dc.relation.ispartofseriesVolume 148en
dc.rightsopenAccessen
dc.subject.keywordBeam and frame structures in fireen_US
dc.subject.keywordHigh strength steelen_US
dc.subject.keywordMechanical properties at elevated temperatureen_US
dc.subject.keywordPerformance-based fire designen_US
dc.titleResponse of high-strength steel beam and single-storey frame in fire : Numerical simulationen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
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