Lateral torsional buckling of doubly-symmetric steel cellular I-Beams

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dc.authoridErtenli, Mehmet Fethi/0000-0002-7310-8720
dc.contributor.authorErtenli, Mehmet Fethi
dc.contributor.authorErdal, Erdal
dc.contributor.authorBuyukkaragoz, Alper
dc.contributor.authorKalkan, Ilker
dc.contributor.authorAksoylu, Ceyhun
dc.contributor.authorOzkilic, Yasin Onuralp
dc.date.accessioned2024-09-29T16:06:07Z
dc.date.available2024-09-29T16:06:07Z
dc.date.issued2023
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe absence of an important portion of the web plate in steel beams with multiple circular perforations, cellular beams, causes the web plate to undergo distortions prior to and during lateral torsional buckling (LTB). The conventional LTB equations in the codes and literature underestimate the buckling moments of cellular beams due to web distortions. The present study is an attempt to develop analytical methods for estimating the elastic buckling moments of cellular beams. The proposed methods rely on the reductions in the torsional and warping rigidities of the beams due to web distortions and the reductions in the weak-axis bending and torsional rigidities due to the presence of web openings. To test the accuracy of the analytical estimates from proposed solutions, a total of 114 finite element analyses were conducted for six different standard IPEO sections and varying unbraced lengths within the elastic limits. These analyses clearly indicated that the LTB solutions in the AISC 360-16 and AS4100:2020 codes overestimate the buckling loads of cellular beams within elastic limits, particularly at shorter span lengths. The LDB solutions in the literature and the Eurocode 3 LTB solution, on the other hand, provided conservative buckling moment estimates along the entire range of elastic buckling.en_US
dc.identifier.doi10.12989/scs.2023.46.5.709
dc.identifier.endpage718en_US
dc.identifier.issn1229-9367
dc.identifier.issn1598-6233
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85161285098en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage709en_US
dc.identifier.urihttps://doi.org/10.12989/scs.2023.46.5.709
dc.identifier.urihttps://hdl.handle.net/20.500.14619/6624
dc.identifier.volume46en_US
dc.identifier.wosWOS:000956220600009en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTechno-Pressen_US
dc.relation.ispartofSteel and Composite Structuresen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectbeam stabilityen_US
dc.subjectelastic bucklingen_US
dc.subjectinelastic bucklingen_US
dc.subjectresidual stressen_US
dc.subjectstability failureen_US
dc.subjectweb posten_US
dc.subjectweb slendernessen_US
dc.titleLateral torsional buckling of doubly-symmetric steel cellular I-Beamsen_US
dc.typeArticleen_US

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