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Title |
Strength Evaluation for Doubly Reinforced Composite Beams with Steel Fiber Concretes and Steel Angles
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Keywords |
합성보 ; 전단강도 ; 강성 ; 연성 ; 전단보강상세 composite beams ; shear strength ; stiffness ; ductility ; shear reinforcement details |
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Abstract |
The purpose of this study is to investigate the structural performance of doubly reinforced composite beams with steel fiber concretes and steel angles. For this purpose, total 6 specimens whose variables are shear span-to-depth ratio, existence of shear reinforcement, and shear reinforcement details, are made and tested. All specimens are constructed of steel fiber concretes with specified compressive strength of 30 MPa and steel fiber volumn content of 1%. From the experimental results, structural performance of doubly reinforced composite beams are evaluated in terms of strength, stiffness, ductility, and energy absorbing capacity. For the better structural performance, it is recommended that the composite beam is designed with diagonal shear reinforcement.
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