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Title |
Predicting Actual Strength of Shear Reinforcement Using Effective Stirrup Concept
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Keywords |
전단강도 ; 유효 스터럽 ; 정착길이 ; 불연속적 배근상태 ; 균열각 shear strength ; effective stirrup ; development length ; discrete positioning of stirrup ; crack angle |
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Abstract |
This paper presents the prediction of the actual strength of shear reinforcement on the basis of the concept of effective stirrups. The prediction method incorporating the shear cracking angle was proposed with the estimation by the Modified Compression Field Theory (MCFT). To check the validity of the method, discussion of the current ACI 318-05 and comparison of 39 test results from the literature including author's retrospective test data were made. The influencing factors of compressive concrete strength and type of shear-reinforcement were also investigated. Furthermore, two full-scale beam specimens shear-reinforced with headed bars were tested to demonstrate the applicability of the proposed method.
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