Earticle

초록

영어

In recent years, researchers at home and abroad have carried out studies to ensure eco-friendliness and economical efficiency by extracting polyethylene terephthalate (hereafter referred to as PET)from industrial waste and reinforce structures with PET sheets. In this regard, this study aimed to provide basic data on the applicability of PET sheets as structural materials for construction. To this end, a total of 32 compressive concrete specimens were fabricated, and the lateral confinement effects of concrete reinforced with PET were examined. According to the results, the specimens reinforced with PET sheets did not undergo reinforcement fracture in the grain direction of sheet but suffered strength reduction after the maximum load. In addition, they exhibited the final failure modes with ductile behaviors different from those of the specimens reinforced with CFS. A comparative review between the experimental values and the calculated values of proposed equation for the confinement stress of concrete reinforced with more than 10-ply (0.50 mm) PET sheets found that the minimum value was 0.96, and the maximum value was 1.26, showing a high correlation coefficient (R) of 0.93.

목차

Abstract
1. 서론
1.1 연구배경 및 목적
1.2 연구범위 및 방법
2. 이론적 고찰
2.1 FRP로 보강된 콘크리트의 횡 구속 특징
3. 실험 계획
3.1 재료 실험
3.2 실험체 계획
3.3 실험 방법
4. 실험 결과 및 분석
4.1 실험체 파괴 양상
4.2 하중과 변형률 관계
4.3 각 실험체의 최대응력 관계
4.4 강성 및 연성능력 평가
4.5 기존 제안식 검토
4.6 PET 시트로 보강된 콘크리트의 구속 응력 제안식
5. 결론
REFERENCES

저자

• 허승웅 [ Ho, SeungWoung | 한국교통대학교 건축구조방재연구실 연구원 ]
• 하상수 [ Ha, Sang-Su | 강남대학교 부동산건설학부(도시건축융합공학), 부교수 ] Corresponding Author

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