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[2067] SHEAR PERFORMANCE OF R/C FOUNDATION BEAM USING 785 CLASS SHEAR REINFORCEMENT WITH HOOKED LAP SPLICING

MAHARJAN Nikesh¹, MARUTA Makoto¹, OGATA Masato² (1.Shizuoka Institute of Science and Technology 2.Tokyo Tekko Co., Ltd.)

キーワード：High Strength Rebar、Lap Splice、Allowable Shear Strength、RC Foundation Beam

The use of lap splice in shear reinforcement recommended in AIJ Recommendation for Detailing and Placing of Concrete Reinforcement is limited to SD490 and below. Hence, to study its applicability on higher strength rebars, the authors conducted cantilever RC foundation beam tests using 785N/mm2 weldspliced and lap-spliced ​​shear reinforcement. The strength characteristics exhibited by lap-spliced ​​specimen were comparable to weld-spliced ​​specimen and they were safe at allowable loads calculated as per AIJ Guidelines; and ultimate loads, calculated using Arakawa Mean and Modified Plasticity Equations.