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http://dx.doi.org/10.4334/JKCI.2011.23.2.185

Shear Strength Model for FRP Shear-Reinforced Concrete Beams  

Choi, Kyoung-Kyu (School of Architecture, Soongsil University)
Kang, Su-Min (Researcher at Daelim Industrial Co.)
Shim, Woo-Chang (School of Architecture, Soongsil University)
Publication Information
Journal of the Korea Concrete Institute / v.23, no.2, 2011 , pp. 185-193 More about this Journal
Abstract
In the present study, a unified shear design method was developed to evaluate the shear strength of concrete beams with and without FRP shear reinforcement. The contributions of FRP and concrete on shear strength were defined separately. By comparing the current design method calculated results with the existing test results, it was found that Triantafillou model shows a reliable prediction of FRP effective strain and FRP shear strength contributions. The concrete shear strength contribution was defined by the strain-based shear strength model developed in the previous study. The shear strength of concrete compression zone was evaluated based on the material failure criteria of the concrete subjected to the compressive normal and shear stresses. The proposed strength model was verified by comparing its prediction results to prior test results. The comparisons showed that the proposed method accurately predicts the strengths of the test specimens for both FRP shear reinforced and unreinforced concrete beams.
Keywords
concrete beams; FRP; shear strength; shear reinforcement; alternative design method;
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Times Cited By KSCI : 1  (Citation Analysis)
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