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dc.contributor.authorDarwin, David
dc.contributor.authorTholen, Michael L.
dc.contributor.authorIdun, Emmanuel K.
dc.contributor.authorZuo, Jun
dc.identifier.citationDarwin, D., Tholen, M.L., Idun, E.K., and Zuo, J., "Splice Strength of High Relative Rib Area Reinforcing Bars," ACI Structural Journal 93-10, January-February 1996, pp. 95-107.en_US
dc.description.abstractThis paper described the testing and analysis of 93 beam-splice specimens containing No. 5, No. 8, and No. 11 (16, 25 and 36mm) bars with relative rib areas (ratio of projected rib area normal to bar axis to the product of the nominal bar perimeter and the center-to-center rib spacing) ranging from 0.065 to 0.140. Concretes containing two different coarse aggregates were used to evaluate the effect of aggregate properties on bond strength. Sixty specimens contained uncoated bars with confining transverse reinforcement. Thirteen specimens contained uncoated bars, nine with confining reinforcement and one with confining reinforcement. The tests are analyzed to determine the effect of relative rib area and bar diameter on the increase in bond strength provided by confining reinforcement. The tests also provide a preliminary indication of the effect of high relative rib area on the splice strength of epoxy-coated bars. The splice strength of uncoated reinforcement confined by transverse reinforcement increases as the strength of the coarse aggregate increases. The use of reinforcing bars with an average relative rib area of 0.1275, an increase from the average value for conventional bars of 0.0727, can provide up to a 26 percent decrease in splice length compared to conventional reinforcement when confining reinforcement is used. The saving obtainable with high relative rib area bars is highest for low covers and bar spacings. Epoxy appears to have a less detrimental effect on splice strength for high relative rib area bars than for conventional bars. The results indicate that the maximum development length modification factor used for epoxy-coated reinforcement may be reduced by 20 percent.en_US
dc.publisherAmerican Concrete Instituteen_US
dc.subjectBond (concrete to reinforcement)en_US
dc.subjectBuilding codesen_US
dc.subjectdeformed reinforcementen_US
dc.subjectLap connectionsen_US
dc.subjectReinforcing steelsen_US
dc.subjectStructural engineeringen_US
dc.titleSplice Strength of High Relative Rib Area Reinforcing Barsen_US
kusw.kuauthorDarwin, David
kusw.kuauthorTholen, Michael L.
kusw.kuauthorZuo, Jun
kusw.kudepartmentInfrastructure Research Instituteen_US
kusw.oanotes2016/01/06: The institute granted permission to share these on KU Scholarworks: From: Lequesne, Remy D Sent: Wednesday, January 06, 2016 10:13 AM To: Reed, Marianne A. <> Subject: RE: Question re: digital publishing


I’ve heard nothing but favorable feedback about getting the reports at into KU Scholarworks.

How do we get started? Can we try a couple and see how it goes?


************************************************ Rémy Lequesne, PhD
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item does not meet KU Open Access policy criteria.en_US

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