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Article: Effects of using high-strength concrete on flexural ductility of reinforced concrete beams

TitleEffects of using high-strength concrete on flexural ductility of reinforced concrete beams
Authors
KeywordsFlexural Ductility
High-Strength Concrete
Reinforced Concrete Beams
Issue Date2002
PublisherHong Kong Institution of Engineers. The Journal's web site is located at http://www.hkie.org.hk/html/publications/transactions/index.asp
Citation
Transactions Hong Kong Institution Of Engineers, 2002, v. 9 n. 1, p. 14-21 How to Cite?
AbstractThe complete moment-curvature behavior and flexural ductility of reinforced concrete beams made of normal- or high-strength concrete have been analyzed by a newly developed theoretical method that uses the actual stress-strain curves of the materials and takes into account the strain reversal of the tension reinforcement in the analysis. It was found that as expected the flexural ductility decreases with the tension steel ratio and increases with the compression steel ratio. However, the variation of the flexural ductility with the concrete grade is quite complicated; at fixed tension and compression steel ratios, the flexural ductility increases as the concrete grade increases but at a given degree of being under- or over-reinforced, the flexural ductility decreases as the concrete grade increases. In order to better reveal the combined effects of the steel ratios and the concrete grade, the flexural ductility has been plotted against the flexural strength for different steel ratios and concrete grades. From the graphs plotted, it can be clearly seen that the use of a higher grade concrete could increase flexural ductility at same flexural strength, increase flexural strength at same flexural ductility, or increase both flexural strength and flexural ductility.
Persistent Identifierhttp://hdl.handle.net/10722/150214
ISSN
2015 SCImago Journal Rankings: 0.145
References

 

DC FieldValueLanguage
dc.contributor.authorHo, JCMen_US
dc.contributor.authorKwan, AKHen_US
dc.contributor.authorPam, HJen_US
dc.date.accessioned2012-06-26T06:02:26Z-
dc.date.available2012-06-26T06:02:26Z-
dc.date.issued2002en_US
dc.identifier.citationTransactions Hong Kong Institution Of Engineers, 2002, v. 9 n. 1, p. 14-21en_US
dc.identifier.issn1023-697Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/150214-
dc.description.abstractThe complete moment-curvature behavior and flexural ductility of reinforced concrete beams made of normal- or high-strength concrete have been analyzed by a newly developed theoretical method that uses the actual stress-strain curves of the materials and takes into account the strain reversal of the tension reinforcement in the analysis. It was found that as expected the flexural ductility decreases with the tension steel ratio and increases with the compression steel ratio. However, the variation of the flexural ductility with the concrete grade is quite complicated; at fixed tension and compression steel ratios, the flexural ductility increases as the concrete grade increases but at a given degree of being under- or over-reinforced, the flexural ductility decreases as the concrete grade increases. In order to better reveal the combined effects of the steel ratios and the concrete grade, the flexural ductility has been plotted against the flexural strength for different steel ratios and concrete grades. From the graphs plotted, it can be clearly seen that the use of a higher grade concrete could increase flexural ductility at same flexural strength, increase flexural strength at same flexural ductility, or increase both flexural strength and flexural ductility.en_US
dc.languageengen_US
dc.publisherHong Kong Institution of Engineers. The Journal's web site is located at http://www.hkie.org.hk/html/publications/transactions/index.aspen_US
dc.relation.ispartofTransactions Hong Kong Institution of Engineersen_US
dc.subjectFlexural Ductilityen_US
dc.subjectHigh-Strength Concreteen_US
dc.subjectReinforced Concrete Beamsen_US
dc.titleEffects of using high-strength concrete on flexural ductility of reinforced concrete beamsen_US
dc.typeArticleen_US
dc.identifier.emailHo, JCM:johnny.ho@hku.hken_US
dc.identifier.emailKwan, AKH:khkwan@hkucc.hku.hken_US
dc.identifier.emailPam, HJ:pamhoatjoen@hku.hken_US
dc.identifier.authorityHo, JCM=rp00070en_US
dc.identifier.authorityKwan, AKH=rp00127en_US
dc.identifier.authorityPam, HJ=rp00071en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0036553864en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036553864&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume9en_US
dc.identifier.issue1en_US
dc.identifier.spage14en_US
dc.identifier.epage21en_US
dc.publisher.placeHong Kongen_US
dc.identifier.scopusauthoridHo, JCM=24831880500en_US
dc.identifier.scopusauthoridKwan, AKH=7101738204en_US
dc.identifier.scopusauthoridPam, HJ=6602976141en_US

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