File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Maximum concrete stress developed in unconfined flexural RC members

TitleMaximum concrete stress developed in unconfined flexural RC members
Authors
KeywordsRectangular Stress Block Parameters
Reinforced Concrete
Strain Gradient
Uni-Axial Concrete Stress
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. 2, p. 207-227 How to Cite?
AbstractIn flexural strength design of unconfined reinforced concrete (RC) members, the concrete compressive stress-strain curve is scaled down from the uni-axial stress-strain curve such that the maximum concrete stress adopted in design is less than the uni-axial strength to account for the strain gradient effect. It has been found that the use of this smaller maximum concrete stress will underestimate the flexural strength of unconfined RC members although the safety factors for materials are taken as unity. Herein, in order to investigate the effect of strain gradient on the maximum concrete stress that can be developed in unconfined flexural RC members, several pairs of plain concrete (PC) and RC inverted T-shaped specimens were fabricated and tested under concentric and eccentric loads. From the test results, the maximum concrete stress developed in the eccentric specimens under strain gradient is determined by the modified concrete stress-strain curve obtained from the counterpart concentric specimens based on axial load and moment equilibriums. Based on that, a pair of equivalent rectangular concrete stress block parameters for the purpose of flexural strength design of unconfined RC members is determined.
Persistent Identifierhttp://hdl.handle.net/10722/150624
ISSN
2014 Impact Factor: 0.869
2014 SCImago Journal Rankings: 0.470
References

 

DC FieldValueLanguage
dc.contributor.authorHo, JCMen_US
dc.contributor.authorPam, HJen_US
dc.contributor.authorPeng, Jen_US
dc.contributor.authorWong, YLen_US
dc.date.accessioned2012-06-26T06:06:13Z-
dc.date.available2012-06-26T06:06:13Z-
dc.date.issued2011en_US
dc.identifier.citationComputers And Concrete, 2011, v. 8 n. 2, p. 207-227en_US
dc.identifier.issn1598-8198en_US
dc.identifier.urihttp://hdl.handle.net/10722/150624-
dc.description.abstractIn flexural strength design of unconfined reinforced concrete (RC) members, the concrete compressive stress-strain curve is scaled down from the uni-axial stress-strain curve such that the maximum concrete stress adopted in design is less than the uni-axial strength to account for the strain gradient effect. It has been found that the use of this smaller maximum concrete stress will underestimate the flexural strength of unconfined RC members although the safety factors for materials are taken as unity. Herein, in order to investigate the effect of strain gradient on the maximum concrete stress that can be developed in unconfined flexural RC members, several pairs of plain concrete (PC) and RC inverted T-shaped specimens were fabricated and tested under concentric and eccentric loads. From the test results, the maximum concrete stress developed in the eccentric specimens under strain gradient is determined by the modified concrete stress-strain curve obtained from the counterpart concentric specimens based on axial load and moment equilibriums. Based on that, a pair of equivalent rectangular concrete stress block parameters for the purpose of flexural strength design of unconfined RC members is determined.en_US
dc.languageengen_US
dc.publisherTechno-Press. The Journal's web site is located at http://technopress.kaist.ac.kr/?journal=cac&subpage=6en_US
dc.relation.ispartofComputers and Concreteen_US
dc.subjectRectangular Stress Block Parametersen_US
dc.subjectReinforced Concreteen_US
dc.subjectStrain Gradienten_US
dc.subjectUni-Axial Concrete Stressen_US
dc.titleMaximum concrete stress developed in unconfined flexural RC membersen_US
dc.typeArticleen_US
dc.identifier.emailHo, JCM:johnny.ho@hku.hken_US
dc.identifier.emailPam, HJ:pamhoatjoen@hku.hken_US
dc.identifier.authorityHo, JCM=rp00070en_US
dc.identifier.authorityPam, HJ=rp00071en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.12989/cac.2011.8.2.207-
dc.identifier.scopuseid_2-s2.0-80955140488en_US
dc.identifier.hkuros176107-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80955140488&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume8en_US
dc.identifier.issue2en_US
dc.identifier.spage207en_US
dc.identifier.epage227en_US
dc.publisher.placeKorea, Republic ofen_US
dc.identifier.scopusauthoridHo, JCM=24831880500en_US
dc.identifier.scopusauthoridPam, HJ=6602976141en_US
dc.identifier.scopusauthoridPeng, J=35335169300en_US
dc.identifier.scopusauthoridWong, YL=7403041495en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats