[L05] 高強度コンクリート（構造）／柱Ⅰ

[L2084] PREDICTION OF SHEAR STRENGTH OF HIGH-STRENGTH CONCRETE MEMBERS WITHOUT WEB REINFORCEMENT

S.V.T　Janaka PERERA¹,睦好 宏史² (1.Saitama University,2.埼玉大学)

キーワード：骨材強度,コンクリート強度,高強度コンクリート,せん断強度

This paper describes the prediction of diagonal cracking shear strength of reinforced high-strength concrete (HSC) members without web reinforcement. It was found that the diagonal cracking shear strength of HSC is governed by the ratio of uniaxial compressive strength to tensile strength (i.e., its ductility number, DN) of the concrete relative to that of the aggregate. By considering aggregate and concrete strengths, shear strength prediction equations and concrete strength regions were suggested. The proposed equations were found to be reliable for design purposes (Average 1.05, S.D. 0.16).
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