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Article: Flexural ductility and deformability of reinforced and prestressed concrete sections

TitleFlexural ductility and deformability of reinforced and prestressed concrete sections
Authors
KeywordsDeformability
Flexural ductility
Prestressed concrete
Reinforced concrete
Issue Date2011
PublisherTechno-Press. The Journal's web site is located at http://technopress.kaist.ac.kr/?journal=cac&subpage=6
Citation
Computers And Concrete, 2011, v. 8 n. 4, p. 473-489 How to Cite?
AbstractIn designing a flexural member for structural safety, both the flexural strength and ductility have to be considered. For this purpose, the flexural ductility of reinforced concrete sections has been studied quite extensively. As there have been relatively few studies on the flexural ductility of prestressed concrete sections, it is not well understood how various structural parameters affect the flexural ductility. In the present study, the full-range flexural responses of reinforced and prestressed concrete sections are analyzed taking into account the nonlinearity and stress-path dependence of constitutive materials. From the numerical results, the effects of steel content, yield strength and degree of prestressing on the yield curvature and ultimate curvature are evaluated. It is found that whilst the concept of flexural ductility in terms of the ductility factor works well for reinforced sections, it can be misleading when applied to prestressed concrete sections. For prestressed concrete sections, the concept of flexural deformability in terms of ultimate curvature times overall depth of section may be more appropriate.
Persistent Identifierhttp://hdl.handle.net/10722/139071
ISSN
2015 Impact Factor: 0.849
2015 SCImago Journal Rankings: 0.506
References

 

DC FieldValueLanguage
dc.contributor.authorAu, FTKen_HK
dc.contributor.authorLeung, CCYen_HK
dc.contributor.authorKwan, AKHen_HK
dc.date.accessioned2011-09-23T05:44:46Z-
dc.date.available2011-09-23T05:44:46Z-
dc.date.issued2011en_HK
dc.identifier.citationComputers And Concrete, 2011, v. 8 n. 4, p. 473-489en_HK
dc.identifier.issn1598-8198en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139071-
dc.description.abstractIn designing a flexural member for structural safety, both the flexural strength and ductility have to be considered. For this purpose, the flexural ductility of reinforced concrete sections has been studied quite extensively. As there have been relatively few studies on the flexural ductility of prestressed concrete sections, it is not well understood how various structural parameters affect the flexural ductility. In the present study, the full-range flexural responses of reinforced and prestressed concrete sections are analyzed taking into account the nonlinearity and stress-path dependence of constitutive materials. From the numerical results, the effects of steel content, yield strength and degree of prestressing on the yield curvature and ultimate curvature are evaluated. It is found that whilst the concept of flexural ductility in terms of the ductility factor works well for reinforced sections, it can be misleading when applied to prestressed concrete sections. For prestressed concrete sections, the concept of flexural deformability in terms of ultimate curvature times overall depth of section may be more appropriate.en_HK
dc.languageengen_US
dc.publisherTechno-Press. The Journal's web site is located at http://technopress.kaist.ac.kr/?journal=cac&subpage=6en_HK
dc.relation.ispartofComputers and Concreteen_HK
dc.subjectDeformabilityen_HK
dc.subjectFlexural ductilityen_HK
dc.subjectPrestressed concreteen_HK
dc.subjectReinforced concreteen_HK
dc.titleFlexural ductility and deformability of reinforced and prestressed concrete sectionsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1598-8198&volume=8&issue=4&spage=473&epage=489&date=2011&atitle=Flexural+ductility+and+deformability+of+reinforced+and+prestressed+concrete+sections-
dc.identifier.emailAu, FTK:francis.au@hku.hken_HK
dc.identifier.emailKwan, AKH:khkwan@hkucc.hku.hken_HK
dc.identifier.authorityAu, FTK=rp00083en_HK
dc.identifier.authorityKwan, AKH=rp00127en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-80955140479en_HK
dc.identifier.hkuros193768en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80955140479&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume8en_HK
dc.identifier.issue4en_HK
dc.identifier.spage473en_HK
dc.identifier.epage489en_HK
dc.publisher.placeKorea, Republic ofen_HK
dc.identifier.scopusauthoridAu, FTK=7005204072en_HK
dc.identifier.scopusauthoridLeung, CCY=54179337600en_HK
dc.identifier.scopusauthoridKwan, AKH=7101738204en_HK

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