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Conference Paper: Response of concrete beams partially prestressed with external unbonded carbon fiber-reinforced polymer tendons

TitleResponse of concrete beams partially prestressed with external unbonded carbon fiber-reinforced polymer tendons
Authors
KeywordsBeams
Carbon fiber-reinforced polymer
External tendon
Prestressed concrete
Issue Date2011
PublisherTrans Tech Publications Ltd.. The Journal's web site is located at http://www.scitec.ch/1022-6680/
Citation
Advanced Materials Research, 2011, v. 150-151, p. 344-349 How to Cite?
Abstract
To assess the behavior of concrete beams partially prestressed with external unbonded carbon fiber-reinforced polymer (CFRP) tendons, three specimens prestressed with CFRP tendons and one reference specimen prestressed with external steel tendons were tested to failure under third point loading. It was found that the load-deflection curve of all specimens exhibited three stages, namely, elastic, cracked-elastic and plastic. The transition from the elastic to the cracked-elastic stage was caused by the development of cracks at the bottom of the beam, while the transition from the cracked-elastic to the plastic stage was caused by yielding of the non-prestressed steel. For beams prestressed with external CFRP tendons and that with external steel tendons, the relationships between the stress increment in external tendons and the mid-span deflection of specimens were linear or approximately linear. Although CFRP materials are brittle in nature and behave linearly elastically until failure, proper combination of external CFRP prestress tendons with internal steel reinforcing bars can impart ductility to the beams. © (2011) Trans Tech Publications.
DescriptionSelected, peer reviewed paper from the 2010 International Conference on Advances in Materials and Manufacturing Processes (ICAMMP 2010), 6-8 November, 2010, Shenzhen, China
Persistent Identifierhttp://hdl.handle.net/10722/139055
ISSN
2013 SCImago Journal Rankings: 0.144
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorDu, Jen_HK
dc.contributor.authorYang, Den_HK
dc.contributor.authorNg, PLen_HK
dc.contributor.authorAu, FTKen_HK
dc.date.accessioned2011-09-23T05:44:38Z-
dc.date.available2011-09-23T05:44:38Z-
dc.date.issued2011en_HK
dc.identifier.citationAdvanced Materials Research, 2011, v. 150-151, p. 344-349en_HK
dc.identifier.issn1022-6680en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139055-
dc.descriptionSelected, peer reviewed paper from the 2010 International Conference on Advances in Materials and Manufacturing Processes (ICAMMP 2010), 6-8 November, 2010, Shenzhen, China-
dc.description.abstractTo assess the behavior of concrete beams partially prestressed with external unbonded carbon fiber-reinforced polymer (CFRP) tendons, three specimens prestressed with CFRP tendons and one reference specimen prestressed with external steel tendons were tested to failure under third point loading. It was found that the load-deflection curve of all specimens exhibited three stages, namely, elastic, cracked-elastic and plastic. The transition from the elastic to the cracked-elastic stage was caused by the development of cracks at the bottom of the beam, while the transition from the cracked-elastic to the plastic stage was caused by yielding of the non-prestressed steel. For beams prestressed with external CFRP tendons and that with external steel tendons, the relationships between the stress increment in external tendons and the mid-span deflection of specimens were linear or approximately linear. Although CFRP materials are brittle in nature and behave linearly elastically until failure, proper combination of external CFRP prestress tendons with internal steel reinforcing bars can impart ductility to the beams. © (2011) Trans Tech Publications.en_HK
dc.languageengen_US
dc.publisherTrans Tech Publications Ltd.. The Journal's web site is located at http://www.scitec.ch/1022-6680/en_HK
dc.relation.ispartofAdvanced Materials Researchen_HK
dc.subjectBeamsen_HK
dc.subjectCarbon fiber-reinforced polymeren_HK
dc.subjectExternal tendonen_HK
dc.subjectPrestressed concreteen_HK
dc.titleResponse of concrete beams partially prestressed with external unbonded carbon fiber-reinforced polymer tendonsen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1022-6680&volume=150-151&spage=344&epage=349&date=2011&atitle=Response+of+concrete+beams+partially+prestressed+with+external+unbonded+carbon+fiber-reinforced+polymer+tendonsen_US
dc.identifier.emailAu, FTK:francis.au@hku.hken_HK
dc.identifier.authorityAu, FTK=rp00083en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.4028/www.scientific.net/AMR.150-151.344en_HK
dc.identifier.scopuseid_2-s2.0-78650633712en_HK
dc.identifier.hkuros193138en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-78650633712&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume150-151en_HK
dc.identifier.spage344en_HK
dc.identifier.epage349en_HK
dc.identifier.isiWOS:000289913000069-
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridDu, J=36442226500en_HK
dc.identifier.scopusauthoridYang, D=36703493500en_HK
dc.identifier.scopusauthoridNg, PL=15045284100en_HK
dc.identifier.scopusauthoridAu, FTK=7005204072en_HK

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