유한요소해석을 이용한 현장 덧씌우기 콘크리트의 부착강도 평가 방법 제안

• 영문명: Proposal of Bond Strength Evaluation Method for Overlay Concrete at Field
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 이봉학(Lee Bong Hak) 홍창우(Hong chang Woo) 이주형(Lee Joo Hyung) 김성환(Kim Seong Hwan)
• 간행물 정보: 『산업기술연구』vol.21, 295~300쪽, 전체 6쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2001.09.30

영문 초록

Significant improvements in bond strength between new and existing concrete can be achieved through the modification of the new concrete by latex modification. But, no test method has been adopted as a standard to measure the bond strength between the concrete used to repair and the substrate being repaired. The performance of old and the new concrete construction defends upon band strength between old and the new concrete. Current adhesion strength measurement method is inaccurate method that ignore effect of stress concentration by shape of specimens. Therefore, this research calculates stress concentration coefficient using finite element analysis and direction tensile strength test (pull-off test). The result shows that the required core depth is 2.5cm. Elastic modulus and overlay thickness do not influence in stress concentration.

목차

ABSTRACT

1. 서론

2. 직접 인발 시험의 유한요소 해석

3. 응력 해석 결과 고찰

4. 실험

5. 결론

참고문헌

키워드

직접인장시험 응력집중 부착강도 pull-off test stress concentrations Adhesion strength