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Article: Flexural ductility of high-strength concrete columns with minimal confinement

TitleFlexural ductility of high-strength concrete columns with minimal confinement
Authors
KeywordsColumns
Flexural ductility
High-strength concrete
Issue Date2009
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://www.rilem.net
Citation
Materials And Structures/Materiaux Et Constructions, 2009, v. 42 n. 7, p. 909-921 How to Cite?
AbstractThe use of high-strength concrete (HSC) instead of normal-strength concrete (NSC) in columns has the advantage of allowing the column size to be reduced and is thus becoming popular. However, since HSC is more brittle than NSC, its use could result in undesirable brittle failure. To evaluate the ductility of columns, nonlinear moment-curvature analysis taking into account the stress-path dependence of the steel reinforcement is required. Based on such analysis, a parametric study has been conducted to investigate the effects of various factors on the ductility of columns. The results revealed that the effect of concrete strength is dependent on the axial stress level (axial load to area ratio) and axial load level (axial load to capacity ratio). At the same axial stress level, the use of HSC has little or basically no adverse effect on the ductility but if the same axial load level is maintained to reduce the column size, the use of HSC would significantly reduce the ductility. Finally, two formulas for direct evaluation of the ductility of columns are developed. © 2008 RILEM.
Persistent Identifierhttp://hdl.handle.net/10722/71725
ISSN
2015 Impact Factor: 2.453
2015 SCImago Journal Rankings: 1.136
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLam, JYKen_HK
dc.contributor.authorHo, JCMen_HK
dc.contributor.authorKwan, AKHen_HK
dc.date.accessioned2010-09-06T06:34:36Z-
dc.date.available2010-09-06T06:34:36Z-
dc.date.issued2009en_HK
dc.identifier.citationMaterials And Structures/Materiaux Et Constructions, 2009, v. 42 n. 7, p. 909-921en_HK
dc.identifier.issn1359-5997en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71725-
dc.description.abstractThe use of high-strength concrete (HSC) instead of normal-strength concrete (NSC) in columns has the advantage of allowing the column size to be reduced and is thus becoming popular. However, since HSC is more brittle than NSC, its use could result in undesirable brittle failure. To evaluate the ductility of columns, nonlinear moment-curvature analysis taking into account the stress-path dependence of the steel reinforcement is required. Based on such analysis, a parametric study has been conducted to investigate the effects of various factors on the ductility of columns. The results revealed that the effect of concrete strength is dependent on the axial stress level (axial load to area ratio) and axial load level (axial load to capacity ratio). At the same axial stress level, the use of HSC has little or basically no adverse effect on the ductility but if the same axial load level is maintained to reduce the column size, the use of HSC would significantly reduce the ductility. Finally, two formulas for direct evaluation of the ductility of columns are developed. © 2008 RILEM.en_HK
dc.languageengen_HK
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://www.rilem.neten_HK
dc.relation.ispartofMaterials and Structures/Materiaux et Constructionsen_HK
dc.rightsThe original publication is available at www.springerlink.com-
dc.subjectColumnsen_HK
dc.subjectFlexural ductilityen_HK
dc.subjectHigh-strength concreteen_HK
dc.titleFlexural ductility of high-strength concrete columns with minimal confinementen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1359-5997&volume=42&issue=7&spage=909&epage=921&date=2009&atitle=Flexural+ductility+of+high-strength+concrete+columns+with+minimal+confinementen_HK
dc.identifier.emailHo, JCM:johnny.ho@hku.hken_HK
dc.identifier.emailKwan, AKH:khkwan@hkucc.hku.hken_HK
dc.identifier.authorityHo, JCM=rp00070en_HK
dc.identifier.authorityKwan, AKH=rp00127en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1617/s11527-008-9431-5en_HK
dc.identifier.scopuseid_2-s2.0-67650401361en_HK
dc.identifier.hkuros159830en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67650401361&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume42en_HK
dc.identifier.issue7en_HK
dc.identifier.spage909en_HK
dc.identifier.epage921en_HK
dc.identifier.isiWOS:000267663500006-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridLam, JYK=24831751200en_HK
dc.identifier.scopusauthoridHo, JCM=24831880500en_HK
dc.identifier.scopusauthoridKwan, AKH=7101738204en_HK

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