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Article: Cold-formed steel lipped channel columns at elevated temperatures

TitleCold-formed steel lipped channel columns at elevated temperatures
Authors
KeywordsCold-formed steel
Elevated temperatures
Finite element method
Fire resistant design
Lipped channel column
Issue Date2007
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct
Citation
Engineering Structures, 2007, v. 29 n. 10, p. 2445-2456 How to Cite?
AbstractThe main objective of this paper is to study the behaviour and design of cold-formed steel lipped channel columns at elevated temperatures using finite element analysis. The effects of initial local and overall geometrical imperfections have been taken into consideration in the analysis. Failure loads and load-shortening curves of lipped channel columns were investigated in this study. The finite element analysis was performed on lipped channel columns compressed between fixed ends over a range of column lengths for various temperatures. The nonlinear finite element model was verified against experimental results of lipped channel columns at normal room temperature and elevated temperatures. Three series of columns were studied using finite element analysis to investigate the strength and behaviour of lipped channel columns at elevated temperatures. The column strengths predicted from the finite element analysis were compared with the design strengths calculated using the effective width and direct strength methods by substituting the reduced material properties. It should be noted that the current effective width and direct strength methods are developed based on cold-formed steel structural members at normal room temperature. In this study, the suitability of the effective width and direct strength methods for cold-formed steel lipped channel columns at elevated temperatures is investigated. It is shown that the effective width and direct strength methods are able to predict the cold-formed steel lipped channel column strengths at elevated temperatures. In addition, the ratio of the failure loads of the columns at elevated temperatures to that at normal room temperature is also studied and compared with the prediction proposed by other researcher. © 2006 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/71336
ISSN
2015 Impact Factor: 1.893
2015 SCImago Journal Rankings: 1.813
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, Jen_HK
dc.contributor.authorYoung, Ben_HK
dc.date.accessioned2010-09-06T06:31:04Z-
dc.date.available2010-09-06T06:31:04Z-
dc.date.issued2007en_HK
dc.identifier.citationEngineering Structures, 2007, v. 29 n. 10, p. 2445-2456en_HK
dc.identifier.issn0141-0296en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71336-
dc.description.abstractThe main objective of this paper is to study the behaviour and design of cold-formed steel lipped channel columns at elevated temperatures using finite element analysis. The effects of initial local and overall geometrical imperfections have been taken into consideration in the analysis. Failure loads and load-shortening curves of lipped channel columns were investigated in this study. The finite element analysis was performed on lipped channel columns compressed between fixed ends over a range of column lengths for various temperatures. The nonlinear finite element model was verified against experimental results of lipped channel columns at normal room temperature and elevated temperatures. Three series of columns were studied using finite element analysis to investigate the strength and behaviour of lipped channel columns at elevated temperatures. The column strengths predicted from the finite element analysis were compared with the design strengths calculated using the effective width and direct strength methods by substituting the reduced material properties. It should be noted that the current effective width and direct strength methods are developed based on cold-formed steel structural members at normal room temperature. In this study, the suitability of the effective width and direct strength methods for cold-formed steel lipped channel columns at elevated temperatures is investigated. It is shown that the effective width and direct strength methods are able to predict the cold-formed steel lipped channel column strengths at elevated temperatures. In addition, the ratio of the failure loads of the columns at elevated temperatures to that at normal room temperature is also studied and compared with the prediction proposed by other researcher. © 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/engstructen_HK
dc.relation.ispartofEngineering Structuresen_HK
dc.subjectCold-formed steelen_HK
dc.subjectElevated temperaturesen_HK
dc.subjectFinite element methoden_HK
dc.subjectFire resistant designen_HK
dc.subjectLipped channel columnen_HK
dc.titleCold-formed steel lipped channel columns at elevated temperaturesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0141-0296&volume=29&spage=2445&epage=2456&date=2007&atitle=Cold-formed+Steel+Lipped+Channel+Columns+at+Elevated+Temperaturesen_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.engstruct.2006.12.004en_HK
dc.identifier.scopuseid_2-s2.0-34548265237en_HK
dc.identifier.hkuros149260en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34548265237&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume29en_HK
dc.identifier.issue10en_HK
dc.identifier.spage2445en_HK
dc.identifier.epage2456en_HK
dc.identifier.isiWOS:000249856300003-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridChen, J=7501901977en_HK
dc.identifier.scopusauthoridYoung, B=7402192398en_HK

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