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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.18 No.3
- 발행연도
- 2016.1
- 수록면
- 337 - 354 (18page)
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초록· 키워드
오류제보하기
To study the influence on fracture properties of reinforced concrete wedge splitting test specimens by the addition of reinforcement, and the restriction of steel bars on crack propagation, 7 groups reinforced concrete specimens of different reinforcement position and 1 group plain concrete specimens with the same size factors were designed and constructed for the tests. Based on the double-K fracture criterion and tests, fracture toughness calculation model which was suitable for reinforced concrete wedge splitting tensile specimens has been obtained. The results show that: the value of initial craking load Pini and unstable fracture load Pun decreases gradually with the distance of reinforcement away from specimens’s top. Compared with plain concrete specimens, addition of steel bar can reduce the value of initial fracture toughness KIini, but significantly increase the value of the critical effective crack length ac and unstable fracture toughness KIun. For tensional concrete member, the effect of anti-cracking by reinforcement was mainly acted after cracking, the best function of preventing fracture initiation was when the steel bar was placed in the middle of the crack, and when the reinforcement was across the crack and located away from crack tip, it plays the best role in inhibiting the extension of crack.
목차
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참고문헌 (18)
참고문헌 신청
Bencardino, F. / 2010 / Experimental evaluation of fiber reinforced concrete fracture properties / Compos. Part B Eng 41(1):17~24
Carmona, J. R. / 2013 / A fracture mechanics model to describe the buckling behavior of lightly reinforced concrete columns / Eng. Struct 49(2):588~599
2005 / DL/T5332-2005 ,Norm for fracture test of hydraulic concrete / China Electric Power Press
Englekirk, R. E. / 2010 / Effective stiffness of reinforced concrete columns / ACI Struct. J 107(3):372~381
Fan, X.Q / 2013 / Influence of crack initiation length on fracture behaviors of reinforced concrete / Appl. Clay Sci 79:25~29
Carmona, J. R. / 2013 / A fracture mechanics model to describe the buckling behavior of lightly reinforced concrete columns / Eng. Struct 49(2):588~599
2005 / DL/T5332-2005 ,Norm for fracture test of hydraulic concrete / China Electric Power Press
Englekirk, R. E. / 2010 / Effective stiffness of reinforced concrete columns / ACI Struct. J 107(3):372~381
Fan, X.Q / 2013 / Influence of crack initiation length on fracture behaviors of reinforced concrete / Appl. Clay Sci 79:25~29
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