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Article: Design of cold-formed steel built-up closed sections with intermediate stiffeners

TitleDesign of cold-formed steel built-up closed sections with intermediate stiffeners
Authors
KeywordsBuckling
Cold-formed steel
Columns
Experimentation
Steel structures
Structural design
Thin wall structures
Issue Date2008
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, 2008, v. 134 n. 5, p. 727-737 How to Cite?
AbstractA series of column tests on cold-formed steel built-up closed sections with intermediate stiffeners is presented in this paper. The test specimens were first brake pressed from structural steel sheets to form open sections with intermediate web stiffeners, then two of the open sections were connected at their flanges using self-tapping screws to form the built-up closed sections. The high strength structural steel sheets had the measured 0.2% proof stress up to 586 MPa. Initial and overall geometric imperfections as well as material properties and residual stresses of the test specimens were measured. Tests were performed over a range of lengths such that column curves could be obtained. The test strengths are compared with the design strengths calculated using the direct strength method in the North American Specification and Australian/New Zealand Standard for cold-formed steel structures. Three different methods were used to obtain the local and distortional buckling stresses for the calculation of the direct strength method. Reliability analysis was performed to assess the reliability of the direct strength method on cold-formed steel built-up closed section columns. It is shown that the direct strength method using single section to obtain the buckling stresses is generally conservative. © 2008 ASCE.
Persistent Identifierhttp://hdl.handle.net/10722/71440
ISSN
2015 Impact Factor: 1.7
2015 SCImago Journal Rankings: 1.431
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYoung, Ben_HK
dc.contributor.authorChen, Jen_HK
dc.date.accessioned2010-09-06T06:32:01Z-
dc.date.available2010-09-06T06:32:01Z-
dc.date.issued2008en_HK
dc.identifier.citationJournal Of Structural Engineering, 2008, v. 134 n. 5, p. 727-737en_HK
dc.identifier.issn0733-9445en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71440-
dc.description.abstractA series of column tests on cold-formed steel built-up closed sections with intermediate stiffeners is presented in this paper. The test specimens were first brake pressed from structural steel sheets to form open sections with intermediate web stiffeners, then two of the open sections were connected at their flanges using self-tapping screws to form the built-up closed sections. The high strength structural steel sheets had the measured 0.2% proof stress up to 586 MPa. Initial and overall geometric imperfections as well as material properties and residual stresses of the test specimens were measured. Tests were performed over a range of lengths such that column curves could be obtained. The test strengths are compared with the design strengths calculated using the direct strength method in the North American Specification and Australian/New Zealand Standard for cold-formed steel structures. Three different methods were used to obtain the local and distortional buckling stresses for the calculation of the direct strength method. Reliability analysis was performed to assess the reliability of the direct strength method on cold-formed steel built-up closed section columns. It is shown that the direct strength method using single section to obtain the buckling stresses is generally conservative. © 2008 ASCE.en_HK
dc.languageengen_HK
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/st.htmlen_HK
dc.relation.ispartofJournal of Structural Engineeringen_HK
dc.rightsJournal of Structural Engineering. Copyright © American Society of Civil Engineers.en_HK
dc.subjectBucklingen_HK
dc.subjectCold-formed steelen_HK
dc.subjectColumnsen_HK
dc.subjectExperimentationen_HK
dc.subjectSteel structuresen_HK
dc.subjectStructural designen_HK
dc.subjectThin wall structuresen_HK
dc.titleDesign of cold-formed steel built-up closed sections with intermediate stiffenersen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0733-9445&volume=134&spage=727&epage=737&date=2008&atitle=Design+of+Cold-formed+Steel+Built-up+Closed+Sections+with+Intermediate+Stiffenersen_HK
dc.identifier.emailYoung, B:young@hku.hken_HK
dc.identifier.authorityYoung, B=rp00208en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1061/(ASCE)0733-9445(2008)134:5(727)en_HK
dc.identifier.scopuseid_2-s2.0-42249109018en_HK
dc.identifier.hkuros149258en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-42249109018&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume134en_HK
dc.identifier.issue5en_HK
dc.identifier.spage727en_HK
dc.identifier.epage737en_HK
dc.identifier.eissn1943-541X-
dc.identifier.isiWOS:000255440500005-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYoung, B=7402192398en_HK
dc.identifier.scopusauthoridChen, J=7501901977en_HK

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