건축도시공간연구소

Architecture & Urban Research Institute

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대한건축학회|대한건축학회논문집 구조계 2017년 3월

논문명 전단철근으로 보강되지 않은 강섬유보강 초고강도콘크리트의 전단강도에 대한 실험적 연구 / Experimental Study on the Shear Strength of Fiber Reinforced Ultra High Strength Concrete without Stirrups
저자명 배백일 ; 최현기 ; 최창식
발행사 대한건축학회
수록사항 대한건축학회논문집 구조계, Vol.33 No.03 (2017-03)
페이지 시작페이지(3) 총페이지(10)
ISSN 1226-9107
주제분류 구조
주제어 강섬유 ; 초고강도콘크리트 ; 전단거동 ; 전단강도 평가 ; Steel Fiber ; Ultra High Strength Concrete ; Shear Behavior ; Shear Strength Evaluation
요약2 In this study, fiber reinforced ultra high strength concrete beams were tested defining the shear behavior of fiber reinforced ultra high strength concrete and evaluating the previously suggested equations for shear strength of concrete members. The main variables of test are compressive strength of concrete(100, 200 MPa), volume fraction of steel fiber(0, 2%), shear-span to depth ratio(3.4, 2.0). According to the test results, specimens without fiber experienced the abrupt shear failure. In the case of fiber reinforced specimen with shear span ratio of 3.4, failure mode of test specimen is changed into flexural failure. And specimen with shear span ratio 2.0 experienced shear-compression failure mode. However, shear strength increase caused by the increase of compressive strength of concrete is not higher than effect of steel fiber inclusion. In order to make safe design of fiber reinforced ultra high strength concrete under shear, shear strength estimation equations are evaluated. Comparing estimated value with test results, shear strength contribution of matrix is over-estimated and shear strength contribution of steel fiber is under-estimated. Among all equations, equation of AFGC-Setra is most accurate.
소장처 대한건축학회
언어 한국어
DOI https://doi.org/10.5659/JAIK_SC.2017.33.3.3
분석서지
건축구조 > 철근콘크리트구조 > 재료특성 > 섬유보강콘크리트