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Article: Analysis and design of cold-formed steel channels subjected to combined bending and web crippling

TitleAnalysis and design of cold-formed steel channels subjected to combined bending and web crippling
Authors
KeywordsBending
Cold-formed steel channels
Design specification
Finite element analysis
Interaction
Nonlinearity
Thin-walled structures
Web crippling
Issue Date2006
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/tws
Citation
Thin-Walled Structures, 2006, v. 44 n. 3, p. 314-320 How to Cite?
AbstractThe channel failures due to combined bending and web crippling may occur at the highly concentrated interior loading when there is no load stiffener in cold-formed thin-walled steel beams. This paper presents accurate finite element models to predict the behavior and ultimate strengths of cold-formed steel channels subjected to pure bending as well as combined bending and web crippling. Both geometric and material nonlinearities are considered in the finite element analysis. The nonlinear finite element models are verified against experimental results of cold-formed steel channels subjected to pure bending as well as combined bending and web crippling. The finite element analytical results show a good agreement with the experimental results in terms of the ultimate loads and moments, failure modes and web load-deformation curves thus validating the accuracy of the finite element models. The verified finite element models are then used for an extensive parametric study of different channel dimensions. The channel strengths predicted from the parametric study are compared with the design strengths calculated from the North American Specification for cold-formed steel structures. It is shown that the design rules in the North American Specification are generally conservative for channel sections with unstiffened flanges having the web slenderness ranged from 7.8 to 108.5 subjected to combined bending and web crippling. It is demonstrated that the nonlinear finite element analysis by using the verified finite element models against test results is an effective way to predict the ultimate strengths of cold-formed thin-walled steel members. © 2006 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/71203
ISSN
2015 Impact Factor: 2.063
2015 SCImago Journal Rankings: 1.647
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorRen, WXen_HK
dc.contributor.authorFang, SEen_HK
dc.contributor.authorYoung, Ben_HK
dc.date.accessioned2010-09-06T06:29:52Z-
dc.date.available2010-09-06T06:29:52Z-
dc.date.issued2006en_HK
dc.identifier.citationThin-Walled Structures, 2006, v. 44 n. 3, p. 314-320en_HK
dc.identifier.issn0263-8231en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71203-
dc.description.abstractThe channel failures due to combined bending and web crippling may occur at the highly concentrated interior loading when there is no load stiffener in cold-formed thin-walled steel beams. This paper presents accurate finite element models to predict the behavior and ultimate strengths of cold-formed steel channels subjected to pure bending as well as combined bending and web crippling. Both geometric and material nonlinearities are considered in the finite element analysis. The nonlinear finite element models are verified against experimental results of cold-formed steel channels subjected to pure bending as well as combined bending and web crippling. The finite element analytical results show a good agreement with the experimental results in terms of the ultimate loads and moments, failure modes and web load-deformation curves thus validating the accuracy of the finite element models. The verified finite element models are then used for an extensive parametric study of different channel dimensions. The channel strengths predicted from the parametric study are compared with the design strengths calculated from the North American Specification for cold-formed steel structures. It is shown that the design rules in the North American Specification are generally conservative for channel sections with unstiffened flanges having the web slenderness ranged from 7.8 to 108.5 subjected to combined bending and web crippling. It is demonstrated that the nonlinear finite element analysis by using the verified finite element models against test results is an effective way to predict the ultimate strengths of cold-formed thin-walled steel members. © 2006 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/twsen_HK
dc.relation.ispartofThin-Walled Structuresen_HK
dc.subjectBendingen_HK
dc.subjectCold-formed steel channelsen_HK
dc.subjectDesign specificationen_HK
dc.subjectFinite element analysisen_HK
dc.subjectInteractionen_HK
dc.subjectNonlinearityen_HK
dc.subjectThin-walled structuresen_HK
dc.subjectWeb cripplingen_HK
dc.titleAnalysis and design of cold-formed steel channels subjected to combined bending and web cripplingen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0263-8231&volume=44&spage=314&epage=320&date=2006&atitle=Analysis+and+Design+of+Cold-formed+Steel+Channels+Subjected+to+Combined+Bending+and+Web+Cripplingen_HK
dc.identifier.emailYoung, B:young@hku.hken_HK
dc.identifier.authorityYoung, B=rp00208en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.tws.2006.03.009en_HK
dc.identifier.scopuseid_2-s2.0-33646793333en_HK
dc.identifier.hkuros118228en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33646793333&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume44en_HK
dc.identifier.issue3en_HK
dc.identifier.spage314en_HK
dc.identifier.epage320en_HK
dc.identifier.isiWOS:000238348200006-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridRen, WX=8726257200en_HK
dc.identifier.scopusauthoridFang, SE=13608680800en_HK
dc.identifier.scopusauthoridYoung, B=7402192398en_HK

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