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dc.contributor.authorWebber, Aen
dc.contributor.authorOrr, Johnen
dc.contributor.authorShepherd, Pen
dc.contributor.authorCrothers, Ken
dc.date.accessioned2018-01-16T15:56:34Z
dc.date.available2018-01-16T15:56:34Z
dc.date.issued2015-11-01en
dc.identifier.issn0141-0296
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/270651
dc.description.abstractCodes of practice rely on the effective length method to assess the stability of multi-storey frames. The effective length method involves isolating a critical column within a frame and evaluating the rotational and translational stiffness of its end restraints, so that the critical buckling load may be obtained.The non-contradictory complementary information (NCCI) document SN008a [1] to BS EN 1993-1 [2] provides erroneous results in certain situations because it omits the contribution made to the rotational stiffness of the end restraints by columns above and below, and to the translational stiffness of end restraints by other columns in the same storey.Two improvements to the method are proposed in this paper. First, the axial load in adjoining columns is incorporated into the calculation of the effective length. Second, a modification to the effective length ratio is proposed that allows the buckling load of adjacent columns to be considered. The improvements are shown to be effective and consistently provide results within 2% of that computed by structural analysis software, as opposed to the up to 80% discrepancies seen using the NCCI [1].
dc.publisherElsevier BV
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleThe effective length of columns in multi-storey framesen
dc.typeArticle
prism.endingPage143
prism.publicationDate2015en
prism.publicationNameEngineering Structuresen
prism.startingPage132
prism.volume102en
dc.identifier.doi10.17863/CAM.17583
dcterms.dateAccepted2015-07-28en
rioxxterms.versionofrecord10.1016/j.engstruct.2015.07.039en
rioxxterms.versionVoR*
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2015-11-01en
dc.contributor.orcidOrr, John [0000-0003-2687-6353]
dc.identifier.eissn1873-7323
rioxxterms.typeJournal Article/Reviewen


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International