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Article: Effects of confinement on flexural strength and ductility design of HS concrete beams

TitleEffects of confinement on flexural strength and ductility design of HS concrete beams
Authors
KeywordsBeams
Bending strength
BS8110
Confinement
Design
Ductility
High strength concrete
Issue Date2004
PublisherStructural Engineers Trading Organisation Ltd. The Journal's web site is located at http://www.istructe.org.uk/thestructuralengineer/index.asp
Citation
Structural Engineer, 2004, v. 82 n. 23-24, p. 38-44 How to Cite?
AbstractHigh-strength concrete is relatively brittle and its use in a reinforced concrete member might result in unacceptably low flexural ductility. One way of improving ductility is to provide confinement. However, in the case of beam design the effects of confinement are generally not considered due mainly to the lack of a suitable design method. In order to develop a design method for improving the flexural ductility of high-strength concrete members through the provision of confinement, the effects of confinement on the flexural behaviour of reinforced concrete beams have been evaluated in this study by complete moment-curvature analysis of beam sections with and without confinement provided. It was found that the provision of confinement significantly increases the ultimate concrete strain, balanced steel ratio and flexural ductility. Furthermore, design formulae for the flexural strength and ductility design of high-strength concrete beams with the effects of confinement taken into account have been developed.
Persistent Identifierhttp://hdl.handle.net/10722/71783
ISSN
2015 SCImago Journal Rankings: 0.169
References

 

DC FieldValueLanguage
dc.contributor.authorKwan, AKHen_HK
dc.contributor.authorAu, FTKen_HK
dc.contributor.authorChau, SLen_HK
dc.date.accessioned2010-09-06T06:35:07Z-
dc.date.available2010-09-06T06:35:07Z-
dc.date.issued2004en_HK
dc.identifier.citationStructural Engineer, 2004, v. 82 n. 23-24, p. 38-44en_HK
dc.identifier.issn1466-5123en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71783-
dc.description.abstractHigh-strength concrete is relatively brittle and its use in a reinforced concrete member might result in unacceptably low flexural ductility. One way of improving ductility is to provide confinement. However, in the case of beam design the effects of confinement are generally not considered due mainly to the lack of a suitable design method. In order to develop a design method for improving the flexural ductility of high-strength concrete members through the provision of confinement, the effects of confinement on the flexural behaviour of reinforced concrete beams have been evaluated in this study by complete moment-curvature analysis of beam sections with and without confinement provided. It was found that the provision of confinement significantly increases the ultimate concrete strain, balanced steel ratio and flexural ductility. Furthermore, design formulae for the flexural strength and ductility design of high-strength concrete beams with the effects of confinement taken into account have been developed.en_HK
dc.languageengen_HK
dc.publisherStructural Engineers Trading Organisation Ltd. The Journal's web site is located at http://www.istructe.org.uk/thestructuralengineer/index.aspen_HK
dc.relation.ispartofStructural Engineeren_HK
dc.subjectBeamsen_HK
dc.subjectBending strengthen_HK
dc.subjectBS8110en_HK
dc.subjectConfinementen_HK
dc.subjectDesignen_HK
dc.subjectDuctilityen_HK
dc.subjectHigh strength concreteen_HK
dc.titleEffects of confinement on flexural strength and ductility design of HS concrete beamsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1466-5123&volume=84&issue=23/24&spage=38&epage=44&date=2004&atitle=Effects+of+confinement+on+flexural+strength+and+ductility+design+of+HS+concrete+beamsen_HK
dc.identifier.emailKwan, AKH:khkwan@hkucc.hku.hken_HK
dc.identifier.emailAu, FTK:francis.au@hku.hken_HK
dc.identifier.authorityKwan, AKH=rp00127en_HK
dc.identifier.authorityAu, FTK=rp00083en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-18744415197en_HK
dc.identifier.hkuros108765en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-18744415197&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume82en_HK
dc.identifier.issue23-24en_HK
dc.identifier.spage38en_HK
dc.identifier.epage44en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridKwan, AKH=7101738204en_HK
dc.identifier.scopusauthoridAu, FTK=7005204072en_HK
dc.identifier.scopusauthoridChau, SL=7005551028en_HK

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