산업부산물과 순환잔골재를 적용한 강섬유 보강 철근콘크리트 보의 구조성능 평가 (Evaluation of Structural Performance of Steel Fiber Reinforced Concrete Beams using Industrial By-products and Recycled Fine Aggregates)

서지정보

· 발행기관 : 대한건축학회
· 수록지 정보 : 대한건축학회논문집 구조계 / 34권 / 11호 / 11 ~ 18페이지
· 저자명 : 하기주, 이동렬, 하재훈

초록

본 연구에서는 고로슬래그 미분말과 순환잔골재와 함께 강섬유를 사용하여 철근콘크리트 보 시험체를 총 7개의 제작하여 단조하중 실험을 하였다. 그리고 강섬유와 순환잔골재 적용한 재료개발을 위하여 마이크로역학과 안정상태 균열이론을 통하여 최적의 강섬유 혼입율을 0.75%로 선정하였으며, 철근콘크리트 보의 구조실험을 통하여 얻어진 결과를 비교·분석하여 하중-변위, 파괴형태, 최대내력 등을 규명함으로써 구조성능의 개선정도를 평가하였다.

영어초록

In this study, seven R/C beams, designed by the steel fiber with ground granulated blast furnace slag and recycled fine aggregate wereconstructed and tested under monotonic loading. In the material development, micromechanics was adopted to properly select the optimizedrange of the composite based on steady-state cracking theory and experimental studies on the matrix and interracial properties. Experimentalprograms were carried out to improve and evaluate the structural performance of the test specimens: the load-displacement, the failure mode,the maximum strength were assessed.
Test results showed that test specimens (BSSR-20, 40, 60, 80) were increased the maximum load carrying capacity by 2~9% and the ductilitycapacity by 10~22% in comparison with the standard specimen (BSS) respectively. And the specimens (BSSR-100) was decreased themaximum load carrying capacity by 5% and the ductility capacity by 44% in comparison with the standard specimen (BSS) respectively.

참고자료

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