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Storey-based stability of multi-storey steel semi-braced and unbraced frames with semi-rigid connections

dc.contributor.authorMa, Terence
dc.contributor.authorXu, Lei
dc.date.accessioned2021-06-08T14:58:00Z
dc.date.available2021-06-08T14:58:00Z
dc.date.issued2021-01
dc.description.abstractA simplified method is proposed for evaluating the stability of multi-storey, steel semi-braced and unbraced frames with semi-rigid connections. The proposed method decomposes a frame into individual storeys and evaluates the lateral stiffness of each storey via the storey-based stability approach with explicit, closed form solutions. Lateral sway instability occurs when the lateral stiffness of any storey diminishes to zero, and the storey for which this occurs can be considered the weakest storey in the frame. The results of the proposed method are theoretically verified via comparison to the results of finite element analyses. Use of the proposed decomposition method requires assuming the buckled shape of the frame, which is shown to provide satisfactory approximations of critical loads for engineering practice. Parametric studies are conducted to assess the sensitivity of the results to the corresponding buckling shape parameters. The assumption of asymmetric buckling, which is generally consistent with the sway buckling mode in semi-braced frames, produces reliable results in the proposed decomposition method.en
dc.description.sponsorshipNational Science and Engineering Research Council of Canada (NSERC) (RGPIN-203154-2013)en
dc.identifier.urihttps://doi.org/10.1061/(ASCE)ST.1943-541X.0002874
dc.identifier.urihttp://hdl.handle.net/10012/17095
dc.language.isoenen
dc.publisherAmerican Society of Civil Engineersen
dc.relation.ispartofseriesJournal of Structural Engineering;147
dc.subjectstabilityen
dc.subjectsteel framesen
dc.subjectmultistoreyen
dc.subjectproportional loadingen
dc.subjectswayen
dc.subjectbucklingen
dc.subjectstorey-baseden
dc.titleStorey-based stability of multi-storey steel semi-braced and unbraced frames with semi-rigid connectionsen
dc.typeArticleen
dcterms.bibliographicCitationMa, T., & Xu, L. (2021). Story-Based Stability of Multistory Steel Semibraced and Unbraced Frames with Semirigid Connections. Journal of Structural Engineering, 147(1), 04020304. https://doi.org/10.1061/(ASCE)ST.1943-541X.0002874en
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Civil and Environmental Engineeringen
uws.peerReviewStatusRevieweden
uws.scholarLevelFacultyen
uws.scholarLevelGraduateen
uws.typeOfResourceTexten

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