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Article: A unified design procedure for preloaded rectangular RC columns strengthened with post-compressed plates under static loads

TitleA unified design procedure for preloaded rectangular RC columns strengthened with post-compressed plates under static loads
Authors
KeywordsReinforced concrete column
Pre-cambered steel plate
Axial load capacity
Design procedure
Worked example
Issue Date2013
PublisherTechno-Press. The Journal's web site is located at http://www.techno-press.org/?journal=acc&subpage=1
Citation
Advances in Concrete Construction, 2013, v. 1 n. 2, p. 163-185 How to Cite?
AbstractThe use of post-compressed plates (PCP) to strengthen preloaded reinforced concrete (RC) columns is an innovative approach for alleviating the effects of stress-lagging between the original column and the additional steel plates. Experimental and theoretical studies on PCP-strengthened RC columns have been presented in our companion papers. The results have demonstrated the effectiveness of this technique for improving the strength, deformability and ductility of preloaded RC columns when subjected to axial or eccentric compression loading. An original and comprehensive design procedure is presented in this paper to aid engineers in designing this new type of PCP-strengthened RC column and to ensure proper strengthening details for desirable performance. The proposed design procedure consists of five parts: (1) the estimation of the ultimate load capacity of the trengthened column, (2) the design of the initial pre-camber displacement of the steel plate, (3) the design of the vertical spacing of the bolts, (4) the design of the bearing ends of the steel plates, and (5) the calculation of the tightening force of the bolts. A worked example of the design of a PCP-strengthened RC column is shown to demonstrate the application of the proposed design procedure.
Persistent Identifierhttp://hdl.handle.net/10722/188980
ISSN

 

DC FieldValueLanguage
dc.contributor.authorWang, Len_US
dc.contributor.authorSu, KLen_US
dc.date.accessioned2013-09-17T14:21:21Z-
dc.date.available2013-09-17T14:21:21Z-
dc.date.issued2013en_US
dc.identifier.citationAdvances in Concrete Construction, 2013, v. 1 n. 2, p. 163-185en_US
dc.identifier.issn2287-5301-
dc.identifier.urihttp://hdl.handle.net/10722/188980-
dc.description.abstractThe use of post-compressed plates (PCP) to strengthen preloaded reinforced concrete (RC) columns is an innovative approach for alleviating the effects of stress-lagging between the original column and the additional steel plates. Experimental and theoretical studies on PCP-strengthened RC columns have been presented in our companion papers. The results have demonstrated the effectiveness of this technique for improving the strength, deformability and ductility of preloaded RC columns when subjected to axial or eccentric compression loading. An original and comprehensive design procedure is presented in this paper to aid engineers in designing this new type of PCP-strengthened RC column and to ensure proper strengthening details for desirable performance. The proposed design procedure consists of five parts: (1) the estimation of the ultimate load capacity of the trengthened column, (2) the design of the initial pre-camber displacement of the steel plate, (3) the design of the vertical spacing of the bolts, (4) the design of the bearing ends of the steel plates, and (5) the calculation of the tightening force of the bolts. A worked example of the design of a PCP-strengthened RC column is shown to demonstrate the application of the proposed design procedure.-
dc.languageengen_US
dc.publisherTechno-Press. The Journal's web site is located at http://www.techno-press.org/?journal=acc&subpage=1en_US
dc.relation.ispartofAdvances in Concrete Constructionen_US
dc.subjectReinforced concrete column-
dc.subjectPre-cambered steel plate-
dc.subjectAxial load capacity-
dc.subjectDesign procedure-
dc.subjectWorked example-
dc.titleA unified design procedure for preloaded rectangular RC columns strengthened with post-compressed plates under static loadsen_US
dc.typeArticleen_US
dc.identifier.emailSu, KL: klsu@hkucc.hku.hken_US
dc.identifier.authoritySu, KL=rp00072en_US
dc.identifier.doi10.12989/acc.2013.1.2.163-
dc.identifier.hkuros225102en_US
dc.identifier.volume1en_US
dc.identifier.issue2en_US
dc.identifier.spage163en_US
dc.identifier.epage185en_US
dc.publisher.placeRepublic of Koreaen_US

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