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Article: Experimental investigation of preloaded RC columns strengthened with precambered steel plates under eccentric compression loading

TitleExperimental investigation of preloaded RC columns strengthened with precambered steel plates under eccentric compression loading
Authors
KeywordsReinforced concrete columns
Precambered steel plates
Strengthening
Eccentricity
Eccentric load
Issue Date2012
PublisherMulti-Science Publishing Co Ltd. The Journal's web site is located at http://www.multi-science.co.uk/advstruc.htm
Citation
Advances in Structural Engineering, 2012, v. 15 n. 8, p. 1253-1264 How to Cite?
AbstractMany existing reinforced concrete (RC) columns must be repaired or strengthened due to material deterioration, changes in usage or the implementation of new building design codes. In this paper, a new post-stressed method using precambered steel plates is proposed to strengthen existing RC columns. This approach can alleviate stress-lagging effects between the preloaded concrete core and steel jacketing and achieve higher axial strength and deformability. An experimental study was undertaken. Nine RC columns with different eccentricities, plate thicknesses and initial precamber displacements were tested under eccentric compression loads. According to the degrees of eccentricity, specimens were divided into three groups. In each group, one column without strengthening was tested to act as a control specimen, while the others were strengthened by precambered steel plates. Test results show that precambered steel plates were effective in increasing the axial strength and bending moment capacity of RC columns. Furthermore, by using precambered steel plates, the specimens had better post-yield deformation. Abstract by, Multi-Science Publishing Co Ltd.
DescriptionResearch article
Persistent Identifierhttp://hdl.handle.net/10722/180136
ISSN
2015 Impact Factor: 0.577
2015 SCImago Journal Rankings: 0.475

 

DC FieldValueLanguage
dc.contributor.authorWang, Len_US
dc.contributor.authorSu, RKLen_US
dc.date.accessioned2013-01-21T01:29:43Z-
dc.date.available2013-01-21T01:29:43Z-
dc.date.issued2012en_US
dc.identifier.citationAdvances in Structural Engineering, 2012, v. 15 n. 8, p. 1253-1264en_US
dc.identifier.issn1369-4332en_US
dc.identifier.urihttp://hdl.handle.net/10722/180136-
dc.descriptionResearch article-
dc.description.abstractMany existing reinforced concrete (RC) columns must be repaired or strengthened due to material deterioration, changes in usage or the implementation of new building design codes. In this paper, a new post-stressed method using precambered steel plates is proposed to strengthen existing RC columns. This approach can alleviate stress-lagging effects between the preloaded concrete core and steel jacketing and achieve higher axial strength and deformability. An experimental study was undertaken. Nine RC columns with different eccentricities, plate thicknesses and initial precamber displacements were tested under eccentric compression loads. According to the degrees of eccentricity, specimens were divided into three groups. In each group, one column without strengthening was tested to act as a control specimen, while the others were strengthened by precambered steel plates. Test results show that precambered steel plates were effective in increasing the axial strength and bending moment capacity of RC columns. Furthermore, by using precambered steel plates, the specimens had better post-yield deformation. Abstract by, Multi-Science Publishing Co Ltd.en_US
dc.languageengen_US
dc.publisherMulti-Science Publishing Co Ltd. The Journal's web site is located at http://www.multi-science.co.uk/advstruc.htmen_US
dc.relation.ispartofAdvances in Structural Engineeringen_US
dc.subjectReinforced concrete columnsen_US
dc.subjectPrecambered steel platesen_US
dc.subjectStrengtheningen_US
dc.subjectEccentricityen_US
dc.subjectEccentric loaden_US
dc.titleExperimental investigation of preloaded RC columns strengthened with precambered steel plates under eccentric compression loadingen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1369-4332&volume=15&issue=8&spage=1253&epage=1264&date=2012&atitle=Experimental+investigation+of+preloaded+RC+columns+strengthened+with+precambered+steel+plates+under+eccentric+compression+loadingen_US
dc.identifier.emailSu, RKL: klsu@hkucc.hku.hken_US
dc.identifier.authoritySu, RKL=rp00072en_US
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1260/1369-4332.15.8.1253en_US
dc.identifier.hkuros212878en_US
dc.identifier.volume15en_US
dc.identifier.issue8en_US
dc.identifier.spage1253en_US
dc.identifier.epage1264en_US
dc.publisher.placeUnited Kingdom-

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