한국구조물진단유지관리공학회 논문집 (Journal of the Korea institute for structural maintenance and inspection)

  • 제18권2호
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  • Pages.82-89
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  • 2014
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  • 2234-6937(pISSN)
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  • 2287-6979(eISSN)
한국구조물진단유지관리공학회 (Korea Institute for Structural Maintenance Inspection)
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고로슬래그 미분말 치환율에 따른 프리캐스트 철근콘크리트 보의 전단거동 평가

Evaluation of Shear Behavior of Precast RC Beams According to Replacement Ratio of Ground Granulated Blast Furnace Slag

  • 정찬유 (공주대학교 건축공학과) ;
  • 김영식 ((주)에이스원테크 기업부설연구소) ;
  • 이진섭 (삼표이앤씨(주) 기술연구소) ;
  • 김상우 (공주대학교 건축공학과) ;
  • 김길희 (공주대학교 건축공학과)
  • 투고 : 2013.10.21
  • 심사 : 2013.11.20
  • 발행 : 2014.03.30
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초록

이 연구에서는 고로슬래그 미분말을 사용한 프리캐스트 보의 전단성능에 대하여 평가하였다. 실험체는 고로슬래그 미분말 치환율에 따라 총 4체의 실험체를 제작하였다. 모든 실험체는 전단경간비 2.5, 보의 폭 200mm, 유효깊이 300mm이며, 3점 가력을 받는 단순보로 계획하였다. 또한 이 연구에서는 실험체의 전단강도를 예측하기 위하여 기존 전단강도 예측식을 이용하여 실험결과와 비교하였으며, 총 89개의 기존 전단 실험결과를 이용하여 실험결과와 비교 분석하였다. 실험결과, 고로슬래그 미분말을 치환한 실험체는 포틀랜드 시멘트만을 사용한 실험체와 비교분석한 결과 유사한 전단성능을 나타내었다.

This study evaluates the shear performance of precast beams with ground granulated blast furnace slag. A total of four specimens according to replacement ratio of ground granulated blast furnace slag. The specimens under three loading points had a shear span-to-depth ratio of 2.5, and a rectangular section with a width of 200mm and a effect depth of 300 mm. In this study, existing equations were used for predicting the shear strength of the specimens. The shear strength by existing equations was compared with those of 89 reinforced concrete beams without shear reinforcement. It can be shown from experimental results that all specimens with ground granulated blast furnace slag showed a similar shear strength as compared with the specimen with portland cements alone.

키워드

참고문헌

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피인용 문헌

  1. Prediction of shear strength of reinforced concrete beams without shear reinforcement considering bond action of longitudinal reinforcements 2017, https://doi.org/10.1177/1369433217706778