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Title |
Evaluations of the Maximum Shear Reinforcement of Reinforced Concrete Beams
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Keywords |
전단보강철근비 ; 전단강도 ; 철근콘크리트 보 ; 전단파괴모드 ; 변형률적합조건을 이용한 트러스모델 percentage of shear reinforcement ; shear strength ; reinforced concrete beams ; shear failure modes ; compatibility aided truss model |
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Abstract |
The requirements of the maximum shear reinforcement in the EC2-02 and CSA-04, which are developed based on the truss model, are quite different to those in the ACI-08 code and AIJ-99 code, which are empirical equations. The ACI 318-08, CSA-04, and EC2-02 codes provide an expression for the maximum amount of shear reinforcement ratio as a function of the concrete compressive strength, but Japanese code does not take the influence of the concrete compressive strength into account. For high strength concrete, the maximum amount of shear reinforcement calculated by the EC2-02 and CSA-04 is much greater than that calculated by the ACI 318-08. Ten RC beams having various shear reinforcement ratios were tested and their corresponding shear stress-shear strain curves and failure modes were compared to the predicted ones obtained by the current design codes.
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