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Article: Design of cold-formed stainless steel circular hollow section columns using direct strength method

TitleDesign of cold-formed stainless steel circular hollow section columns using direct strength method
Authors
KeywordsCircular hollow section
Cold-formed
Column
Direct strength method
Stainless steel
Structural design
Issue Date2018
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct
Citation
Engineering Structures, 2018, v. 163, p. 177-183 How to Cite?
AbstractCold-formed stainless steel circular hollow section (CHS) columns have been increasingly used in construction, due to its aesthetic appearance, long life-span and good ductility. It is shown that direct strength method (DSM) is capable of predicting cold-formed steel column strengths accurately. However, the DSM is developed for cold-formed steel sections with plate rather than curved elements, and thus its applicability for cold-formed stainless steel CHS is worth investigating. This paper presents a numerical investigation of cold-formed stainless steel CHS columns. A non-linear finite element model was developed and verified against column tests. Extensive parametric study of cold-formed duplex, lean duplex and ferritic stainless steel CHS columns has been performed to obtain column strengths. A total of 273 experimental and numerical cold-formed stainless steel CHS column strengths, which are obtained from previous researches and parametric study obtained from this study, are compared with the design strengths predicted by the current DSM. Reliability analysis was performed to evaluate the reliability of the design rules. It is shown that the current DSM provides unconservative and not reliable prediction for cold-formed stainless steel CHS columns. Therefore, modified DSM is proposed for cold-formed stainless steel CHS columns. It is shown that the modified design rule is more accurate than the current DSM, and the modified design rule is considered to be reliable.
Persistent Identifierhttp://hdl.handle.net/10722/259195
ISSN
2017 Impact Factor: 2.755
2015 SCImago Journal Rankings: 1.813

 

DC FieldValueLanguage
dc.contributor.authorHuang, Y-
dc.contributor.authorYoung, B-
dc.date.accessioned2018-09-03T04:02:59Z-
dc.date.available2018-09-03T04:02:59Z-
dc.date.issued2018-
dc.identifier.citationEngineering Structures, 2018, v. 163, p. 177-183-
dc.identifier.issn0141-0296-
dc.identifier.urihttp://hdl.handle.net/10722/259195-
dc.description.abstractCold-formed stainless steel circular hollow section (CHS) columns have been increasingly used in construction, due to its aesthetic appearance, long life-span and good ductility. It is shown that direct strength method (DSM) is capable of predicting cold-formed steel column strengths accurately. However, the DSM is developed for cold-formed steel sections with plate rather than curved elements, and thus its applicability for cold-formed stainless steel CHS is worth investigating. This paper presents a numerical investigation of cold-formed stainless steel CHS columns. A non-linear finite element model was developed and verified against column tests. Extensive parametric study of cold-formed duplex, lean duplex and ferritic stainless steel CHS columns has been performed to obtain column strengths. A total of 273 experimental and numerical cold-formed stainless steel CHS column strengths, which are obtained from previous researches and parametric study obtained from this study, are compared with the design strengths predicted by the current DSM. Reliability analysis was performed to evaluate the reliability of the design rules. It is shown that the current DSM provides unconservative and not reliable prediction for cold-formed stainless steel CHS columns. Therefore, modified DSM is proposed for cold-formed stainless steel CHS columns. It is shown that the modified design rule is more accurate than the current DSM, and the modified design rule is considered to be reliable.-
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct-
dc.relation.ispartofEngineering Structures-
dc.subjectCircular hollow section-
dc.subjectCold-formed-
dc.subjectColumn-
dc.subjectDirect strength method-
dc.subjectStainless steel-
dc.subjectStructural design-
dc.titleDesign of cold-formed stainless steel circular hollow section columns using direct strength method-
dc.typeArticle-
dc.identifier.emailYoung, B: young@hku.hk-
dc.identifier.authorityYoung, B=rp00208-
dc.identifier.doi10.1016/j.engstruct.2018.02.012-
dc.identifier.hkuros288979-
dc.identifier.volume163-
dc.identifier.spage177-
dc.identifier.epage183-
dc.publisher.placeUnited Kingdom-

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