Stability of tapered and stepped steel columns with initial imperfections

Raftoyiannis, IG; Ermopoulos, JCh

dc.contributor.author	Raftoyiannis, IG	en
dc.contributor.author	Ermopoulos, JCh	en
dc.date.accessioned	2014-03-01T01:23:06Z
dc.date.available	2014-03-01T01:23:06Z
dc.date.issued	2005	en
dc.identifier.issn	0141-0296	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16818
dc.subject	Initial imperfections	en
dc.subject	Stability	en
dc.subject	Steel columns	en
dc.subject	Stepped sections	en
dc.subject	Tapered	en
dc.subject.classification	Engineering, Civil	en
dc.subject.other	Buckling	en
dc.subject.other	Defects	en
dc.subject.other	Finite element method	en
dc.subject.other	Plasticity	en
dc.subject.other	Stability	en
dc.subject.other	Elastic stability	en
dc.subject.other	Material failure	en
dc.subject.other	Stability problems	en
dc.subject.other	Steel columns	en
dc.subject.other	Steel construction	en
dc.subject.other	structural analysis	en
dc.title	Stability of tapered and stepped steel columns with initial imperfections	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.engstruct.2005.03.009	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.engstruct.2005.03.009	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	The elastic stability of eccentrically loaded steel columns with tapered and stepped cross-section and initial imperfection is studied herein. The stability problem is formulated in a manner covering most cases met in design applications. The formulation presented herewith is based on the exact solution of the governing equation for buckling of columns with variable cross-section. A parabolic shape is assumed for the initial imperfection according to EC3 provisions. A plasticity criterion is applied to determine material failure in the buckled configuration. Nonlinear finite element analyses are performed to verify the analytical results. The findings presented in this study can be used for the design of such type of imperfect steel columns. (c) 2005 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Engineering Structures	en
dc.identifier.doi	10.1016/j.engstruct.2005.03.009	en
dc.identifier.isi	ISI:000230132200011	en
dc.identifier.volume	27	en
dc.identifier.issue	8	en
dc.identifier.spage	1248	en
dc.identifier.epage	1257	en