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Article: Ultimate stress in external tendons: proposed method and testing verification

TitleUltimate stress in external tendons: proposed method and testing verification
Authors
KeywordsBeams
Concrete
External tendons
FRP
Prestress
Ultimate stress
Issue Date2010
PublisherQinghua Daxue, Tumu Shuili Gongcheng Xueyuan, Tumu Xi. The Journal's web site is located at http://gclx.periodicals.net.cn/
Citation
Gongcheng Lixue/Engineering Mechanics, 2010, v. 27 n. 11, p. 154-159 How to Cite?
AbstractTo calculate the flexural strength of externally prestressed concrete beams, the ultimate stress in external tendons must be known firstly. The relationship between the ratios of the equivalent plastic hinge length to the neutral axis depth is established for prestressed concrete beams with external FRP tendons and steel tendons. Based on different investigators' test data, the ratio of the equivalent plastic hinge length to the neutral axis depth is analyzed for prestressed concrete beams with external FRP tendons. It is found the ratio for prestressed concrete beams with external FRP tendons is stable and can still be treated as a constant, but this constant is not the same as that previously found for prestressed concrete beams with external steel tendons, and it can be transformed by the suggested relationship equation. Finally, a method is proposed for the determination of ultimate stress in external tendons. It is applicable to simply supported beams as well as continuous beams. It is applicable not only to externally prestressed concrete beams with conventional steel tendons, but also to those with non-conventional FRP tendons.
Persistent Identifierhttp://hdl.handle.net/10722/139052
ISSN
2015 SCImago Journal Rankings: 0.487
References

 

DC FieldValueLanguage
dc.contributor.authorDu, JSen_HK
dc.contributor.authorAu, FTen_HK
dc.date.accessioned2011-09-23T05:44:37Z-
dc.date.available2011-09-23T05:44:37Z-
dc.date.issued2010en_HK
dc.identifier.citationGongcheng Lixue/Engineering Mechanics, 2010, v. 27 n. 11, p. 154-159en_HK
dc.identifier.issn1000-4750en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139052-
dc.description.abstractTo calculate the flexural strength of externally prestressed concrete beams, the ultimate stress in external tendons must be known firstly. The relationship between the ratios of the equivalent plastic hinge length to the neutral axis depth is established for prestressed concrete beams with external FRP tendons and steel tendons. Based on different investigators' test data, the ratio of the equivalent plastic hinge length to the neutral axis depth is analyzed for prestressed concrete beams with external FRP tendons. It is found the ratio for prestressed concrete beams with external FRP tendons is stable and can still be treated as a constant, but this constant is not the same as that previously found for prestressed concrete beams with external steel tendons, and it can be transformed by the suggested relationship equation. Finally, a method is proposed for the determination of ultimate stress in external tendons. It is applicable to simply supported beams as well as continuous beams. It is applicable not only to externally prestressed concrete beams with conventional steel tendons, but also to those with non-conventional FRP tendons.en_HK
dc.languagechien_US
dc.publisherQinghua Daxue, Tumu Shuili Gongcheng Xueyuan, Tumu Xi. The Journal's web site is located at http://gclx.periodicals.net.cn/en_HK
dc.relation.ispartofGongcheng Lixue/Engineering Mechanicsen_HK
dc.subjectBeamsen_HK
dc.subjectConcreteen_HK
dc.subjectExternal tendonsen_HK
dc.subjectFRPen_HK
dc.subjectPrestressen_HK
dc.subjectUltimate stressen_HK
dc.titleUltimate stress in external tendons: proposed method and testing verificationen_HK
dc.typeArticleen_HK
dc.identifier.emailAu, FT:francis.au@hku.hken_HK
dc.identifier.authorityAu, FT=rp00083en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-79959695862en_HK
dc.identifier.hkuros193135en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79959695862&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume27en_HK
dc.identifier.issue11en_HK
dc.identifier.spage154en_HK
dc.identifier.epage159en_HK
dc.publisher.placeChinaen_HK
dc.identifier.scopusauthoridDu, JS=36442226500en_HK
dc.identifier.scopusauthoridAu, FT=7005204072en_HK

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