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Title |
Evaluation on the Maximum Yield Strength of Steel Stirrups in Reinforced Concrete Beams
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DOI |
https://doi.org/10.4334/JKCI.2012.24.6.685 |
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Keywords |
고강도 전단보강철근 ; 전단보강철근의 항복강도 ; ACI318-08 ; EC2-02 ; CSA-04 high strength shear reinforcement ; yield strength of shear reinforcement ; ACI318-08 ; EC2-02 ; CSA-04 |
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Abstract |
The yield strength of shear reinforcement is restricted in the present design codes. In this study, the possibility of the yield strength increase in shear reinforcement is evaluated according to ACI318-08, EC2-02 and CSA-04 by comparing the experimental and calculated results. Three cases were used to analyze the shear strength of the beam. One had no limitation in the yield strength of shear reinforcement, another had restriction on the yield strength of shear reinforcement, and the other had a restriction on the yield strength of shear reinforcement and the shear reinforcement ratio. The study results showed that the case with unlimited shear reinforcement yield strength predicted the test result better than other two cases. Even though the rebar yield strength higher than the strength required in present code was applied to existing shear design equation, the result was reasonable. Therefore, the design equation seemed to be appropriate even if the high-strength shear reinforcement is used in practice based on the existing shear design method.
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