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Article: Flexural strength enhancement of confined reinforced concrete columns

TitleFlexural strength enhancement of confined reinforced concrete columns
Authors
KeywordsColumns
Concrete structures
Design methods & aids
Issue Date2001
PublisherThomas Telford (ICE Publishing). The Journal's web site is located at http://www.structuresandbuildings.com
Citation
Proceedings Of The Institution Of Civil Engineers: Structures And Buildings, 2001, v. 146 n. 4, p. 363-370 How to Cite?
AbstractAs part of a continuing research study, this paper proposes a new design aid to calculate the actual moment capacity of confined reinforced concrete columns. Up to now the moment capacity of a reinforced concrete column is calculated based on the code's guidelines for an unconfined section. As most reinforced concrete columns contain transverse or confining reinforcement, which will enhance the column moment capacity, the actual moment capacity will be much higher than the unconfined moment capacity. This additional flexural strength will increase the shear force demand in the column, and if it is not accounted for in the design will jeopardise the column to fail in shear. In this study the actual moment capacity of a confined reinforced concrete column is obtained by multiplying the moment capacity calculated using the BS 8110 method with the proposed flexural strength enhancement factor. By using regression analysis, an equation for the flexural strength enhancement factor is derived as the function of all the parameters that have effects on the moment capacity. An example is presented to show the accuracy of the proposed method.
Persistent Identifierhttp://hdl.handle.net/10722/71475
ISSN
2015 Impact Factor: 0.429
2015 SCImago Journal Rankings: 0.323
References

 

DC FieldValueLanguage
dc.contributor.authorPam, HJen_HK
dc.contributor.authorHo, JCMen_HK
dc.date.accessioned2010-09-06T06:32:20Z-
dc.date.available2010-09-06T06:32:20Z-
dc.date.issued2001en_HK
dc.identifier.citationProceedings Of The Institution Of Civil Engineers: Structures And Buildings, 2001, v. 146 n. 4, p. 363-370en_HK
dc.identifier.issn0965-0911en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71475-
dc.description.abstractAs part of a continuing research study, this paper proposes a new design aid to calculate the actual moment capacity of confined reinforced concrete columns. Up to now the moment capacity of a reinforced concrete column is calculated based on the code's guidelines for an unconfined section. As most reinforced concrete columns contain transverse or confining reinforcement, which will enhance the column moment capacity, the actual moment capacity will be much higher than the unconfined moment capacity. This additional flexural strength will increase the shear force demand in the column, and if it is not accounted for in the design will jeopardise the column to fail in shear. In this study the actual moment capacity of a confined reinforced concrete column is obtained by multiplying the moment capacity calculated using the BS 8110 method with the proposed flexural strength enhancement factor. By using regression analysis, an equation for the flexural strength enhancement factor is derived as the function of all the parameters that have effects on the moment capacity. An example is presented to show the accuracy of the proposed method.en_HK
dc.languageengen_HK
dc.publisherThomas Telford (ICE Publishing). The Journal's web site is located at http://www.structuresandbuildings.comen_HK
dc.relation.ispartofProceedings of the Institution of Civil Engineers: Structures and Buildingsen_HK
dc.rightsInstitution of Civil Engineers Proceedings Structures and Buildings. Copyright © Thomas Telford Ltd.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPermission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees-
dc.subjectColumnsen_HK
dc.subjectConcrete structuresen_HK
dc.subjectDesign methods & aidsen_HK
dc.titleFlexural strength enhancement of confined reinforced concrete columnsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0965-0911&volume=146&spage=363&epage=370&date=2001&atitle=Flexural+strength+enhancement+of+confined+reinforced+concrete+columnsen_HK
dc.identifier.emailPam, HJ:pamhoatjoen@hku.hken_HK
dc.identifier.emailHo, JCM:johnny.ho@hku.hken_HK
dc.identifier.authorityPam, HJ=rp00071en_HK
dc.identifier.authorityHo, JCM=rp00070en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1680/stbu.146.4.363.45460en_HK
dc.identifier.scopuseid_2-s2.0-0035521838en_HK
dc.identifier.hkuros65492en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035521838&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume146en_HK
dc.identifier.issue4en_HK
dc.identifier.spage363en_HK
dc.identifier.epage370en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridPam, HJ=6602976141en_HK
dc.identifier.scopusauthoridHo, JCM=24831880500en_HK

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