Focusing on Problem of Lateral Torsional Buckling of Beams with Web Holes

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dc.contributor.authorHoráček, Martincs
dc.contributor.authorMelcher, Jindřichcs
dc.contributor.authorPešek, Ondřejcs
dc.contributor.authorBrodnianský, Jáncs
dc.coverage.issue161cs
dc.coverage.volume2016cs
dc.date.issued2016-10-19cs
dc.description.abstractThis paper deals with the problems of analysis and the design of perforated thin-walled steel Sigma beams with respect to lateral torsional buckling (further LTB). The application of Sigma profiles is in the storage systems and expedient flooring structures as floor girders. In some cases, the beams are not laterally restraint and therefore the effect of lateral torsional buckling may occur. First the theoretical calculations according to the design procedure listed in European standard EN 1993-1-1 and Czech national annex NB.3 are being performed. These calculations are valid for the beams with the uniform cross-section only without any rules for the beams weakened by holes. Therefore the substitute cross-section is being established and the cross-section characteristics are defined as the weighted average of the characteristics for the full section and for the section weakened by holes. The calculated elastic critical moments for the substitute cross-section properties are verified by the FEM calculations on the beam with variable cross-section. This theoretical approach is verified by testing in laboratory conditions. The experiments are being carried out on the specimens of three different beam lengths. The test results are statistically evaluated according to EN 1090 and the characteristics bending resistances obtained from tests are compared with the values calculated according to EN 1993-1-1 and Czech national annex NB.3 using the cross-section characteristics of substitute cross-section.en
dc.description.abstractThis paper deals with the problems of analysis and the design of perforated thin-walled steel Sigma beams with respect to lateral torsional buckling (further LTB). The application of Sigma profiles is in the storage systems and expedient flooring structures as floor girders. In some cases, the beams are not laterally restraint and therefore the effect of lateral torsional buckling may occur. First the theoretical calculations according to the design procedure listed in European standard EN 1993-1-1 and Czech national annex NB.3 are being performed. These calculations are valid for the beams with the uniform cross-section only without any rules for the beams weakened by holes. Therefore the substitute cross-section is being established and the cross-section characteristics are defined as the weighted average of the characteristics for the full section and for the section weakened by holes. The calculated elastic critical moments for the substitute cross-section properties are verified by the FEM calculations on the beam with variable cross-section. This theoretical approach is verified by testing in laboratory conditions. The experiments are being carried out on the specimens of three different beam lengths. The test results are statistically evaluated according to EN 1090 and the characteristics bending resistances obtained from tests are compared with the values calculated according to EN 1993-1-1 and Czech national annex NB.3 using the cross-section characteristics of substitute cross-section.en
dc.formattextcs
dc.format.extent549-555cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationProcedia Engineering. 2016, vol. 2016, issue 161, p. 549-555.en
dc.identifier.doi10.1016/j.proeng.2016.08.690cs
dc.identifier.issn1877-7058cs
dc.identifier.orcid0000-0002-6053-2127cs
dc.identifier.orcid0000-0003-2599-9896cs
dc.identifier.orcid0000-0002-6595-4337cs
dc.identifier.other129011cs
dc.identifier.researcheridAAE-1675-2019cs
dc.identifier.researcheridAAE-6234-2019cs
dc.identifier.researcheridAAE-2765-2019cs
dc.identifier.scopus57201283032cs
dc.identifier.scopus7006926212cs
dc.identifier.scopus36504679300cs
dc.identifier.urihttp://hdl.handle.net/11012/69374
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofProcedia Engineeringcs
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S1877705816329198cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1877-7058/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectbeamen
dc.subjectholeen
dc.subjectlateral torsional bucklingen
dc.subjectexperimental verificationen
dc.subjectelastic critical momenten
dc.subjectsubstitute cross-sectionen
dc.subjectbeam
dc.subjecthole
dc.subjectlateral torsional buckling
dc.subjectexperimental verification
dc.subjectelastic critical moment
dc.subjectsubstitute cross-section
dc.titleFocusing on Problem of Lateral Torsional Buckling of Beams with Web Holesen
dc.title.alternativeFocusing on Problem of Lateral Torsional Buckling of Beams with Web Holesen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-129011en
sync.item.dbtypeVAVen
sync.item.insts2025.10.14 14:15:41en
sync.item.modts2025.10.14 10:10:15en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav kovových a dřevěných konstrukcícs
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