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Article: Cold-formed-steel oval hollow sections under axial compression

TitleCold-formed-steel oval hollow sections under axial compression
Authors
KeywordsCold-Formed Steel
Column
Design
Oval Hollow Section
Reliability Analysis
Issue Date2011
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/st.html
Citation
Journal Of Structural Engineering, 2011, v. 137 n. 7, p. 719-727 How to Cite?
AbstractA test program was performed on cold-formed-steel oval hollow sections under axial compression. The test specimens were cold-rolled into oval hollow sections with flat web plates and semicircular flanges. The test program included a total of 28 column specimens that were separated into four series of different cross-sectional dimensions. Each series involved at least six specimens of different lengths to obtain a column curve. The columns were compressed between fixed ends. The overall geometric imperfections of the column specimens were measured prior to testing. The failure modes of the specimens included flexural buckling, local buckling, material yielding, and interaction between local and overall buckling. Material properties of each series at the flat and curved portions were determined from tensile coupon tests. The current design specifications for cold-formed-steel structures do not cover the design of oval hollow sections. Hence, certain assumptions on the calculation of effective width have been made in this study. The test strengths were compared with the design strengths predicted by the North American, Australian/New Zealand, and European specifications for cold-formed-steel structures. The test strengths were also compared with the design strengths predicted by the American Iron and Steel Institute Specification for automotive steel that includes design rules for local instability of sections with curved and straight elements. A reliability analysis was also performed. It is shown that the design strengths predicted by the three specifications are generally conservative. © 2011 American Society of Civil Engineers.
Persistent Identifierhttp://hdl.handle.net/10722/150577
ISSN
2015 Impact Factor: 1.7
2015 SCImago Journal Rankings: 1.431
ISI Accession Number ID
Funding AgencyGrant Number
Chinese National Natural Science Foundation50808126
51078237
Funding Information:

The research work described in this paper was supported by the Chinese National Natural Science Foundation (Project No. 50808126 and 51078237). The tests were conducted at the Structural Engineering Laboratory, University of Hong Kong. The authors are grateful to Mr. Chun-Fai Leung for his assistance in the experimental program as part of his final-year undergraduate research project at the University of Hong Kong.

References

 

DC FieldValueLanguage
dc.contributor.authorZhu, JHen_US
dc.contributor.authorYoung, Ben_US
dc.date.accessioned2012-06-26T06:05:53Z-
dc.date.available2012-06-26T06:05:53Z-
dc.date.issued2011en_US
dc.identifier.citationJournal Of Structural Engineering, 2011, v. 137 n. 7, p. 719-727en_US
dc.identifier.issn0733-9445en_US
dc.identifier.urihttp://hdl.handle.net/10722/150577-
dc.description.abstractA test program was performed on cold-formed-steel oval hollow sections under axial compression. The test specimens were cold-rolled into oval hollow sections with flat web plates and semicircular flanges. The test program included a total of 28 column specimens that were separated into four series of different cross-sectional dimensions. Each series involved at least six specimens of different lengths to obtain a column curve. The columns were compressed between fixed ends. The overall geometric imperfections of the column specimens were measured prior to testing. The failure modes of the specimens included flexural buckling, local buckling, material yielding, and interaction between local and overall buckling. Material properties of each series at the flat and curved portions were determined from tensile coupon tests. The current design specifications for cold-formed-steel structures do not cover the design of oval hollow sections. Hence, certain assumptions on the calculation of effective width have been made in this study. The test strengths were compared with the design strengths predicted by the North American, Australian/New Zealand, and European specifications for cold-formed-steel structures. The test strengths were also compared with the design strengths predicted by the American Iron and Steel Institute Specification for automotive steel that includes design rules for local instability of sections with curved and straight elements. A reliability analysis was also performed. It is shown that the design strengths predicted by the three specifications are generally conservative. © 2011 American Society of Civil Engineers.en_US
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/st.htmlen_US
dc.relation.ispartofJournal of Structural Engineeringen_US
dc.subjectCold-Formed Steelen_US
dc.subjectColumnen_US
dc.subjectDesignen_US
dc.subjectOval Hollow Sectionen_US
dc.subjectReliability Analysisen_US
dc.titleCold-formed-steel oval hollow sections under axial compressionen_US
dc.typeArticleen_US
dc.identifier.emailYoung, B:young@hku.hken_US
dc.identifier.authorityYoung, B=rp00208en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1061/(ASCE)ST.1943-541X.0000337en_US
dc.identifier.scopuseid_2-s2.0-79960261523en_US
dc.identifier.hkuros209531-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79960261523&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume137en_US
dc.identifier.issue7en_US
dc.identifier.spage719en_US
dc.identifier.epage727en_US
dc.identifier.eissn1943-541X-
dc.identifier.isiWOS:000292518700001-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridZhu, JH=9736461800en_US
dc.identifier.scopusauthoridYoung, B=7402192398en_US

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