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http://dx.doi.org/10.11112/jksmi.2009.13.1.186

Flexural Behavior of Concrete Beams Reinforced with Lap Spliced FRP Bar  

Oh, Hongseob (국립진주산업대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.13, no.1, 2009 , pp. 186-194 More about this Journal
Abstract
This is a part of the extensive ongoing investigation being carried out by author to develop appropriate design procedure of the concrete member reinforced with FRP rebars instead of conventional steel rebars. This study presents the experimental results of a research programme to assess the structural characteristics of spliced rebar in reinforced concrete members with FRP reinforcement. The test variables are the diameter of FRP rebar and the embedment length. The development length (ld) was calculated according to the ACI 440 for FRP rebars in concrete. A total of 14 concrete beams reinforced with spliced FRP rebars and 4 reference beams reinforced with non-spliced FRP rebars were tested. The effects of bar size (10, 13, 16 and 19 mm) and splice length (from 0.72 to 1.58ld) on the bond strength were empirically evaluated. The test results indicate that a modification factor of 1.3 and 1.6 is relatively sufficient for the bond development length of glass FRP rebars in order to achieve an adequate tension lap splice length.
Keywords
Bond development length; FRP rebars; Tension lap splice length;
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