철근콘크리트 인장부재의 균열 산정식 평가
Evaluation of Crack Estimation Equation for the Reinforced Concrete Tension Member
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
본 연구의 목적은 국내 콘크리트구조설계기준 부록에 새롭게 포함된 CEB-FIP Model Code 1990 균열폭 산정식을 콘크리트 강도를 변수로 하여 평가하는 것에 있다, 평가 도구로 부착응력-미끌림 관계를 적용하여 구축한 균열요소모델과 기존 연구자들의 실험결과로부터 얻은 균열폭을 사용하였으며 기존 실험결과와 비교 평가함으로 검증하였다. 평가대상인 MC-90의 균열폭 산정식의 증요변수는 인장증강효과와 평균부착응력이며 이들을 균열요소모델 해석결과와 비교함으로 강도에 따라 개선된 인장증강효과와 평균부착응력을 제안하였다.
Abstract
The purpose of this research is the evaluation of the estimation equation of “CEP-FIP Model Code 1990(1991)”, recently included in the domestic “Concrete Structure Design Code(2007)” in consideration of the concrete strength. As evaluation tools, crack element model applied a detailed bond-slip model as well as crack width obtained from experimental results by earlier researches. The crack element model is verified through the comparison with experimental results. The important variables in the estimation equation for the crack width in CEP-FIP Model Code 1990 are the tension stiffening effect and mean bond stress proposed in the paper to be improved in consideration of the concrete strength.
참고문헌 (18)
- 윤성호, "고강도 콘크리트의 인장강성효과에 대한 연구", 한국콘크리트학회 98 가을 학술발표논문집(II), pp.495~500 (1998)
- 김우, "고강도 콘크리트 인장부재의 부착특성과 균열거동에 관한 연구(1)", 대한토목학회논문집, 21(5-A), pp.687~697 (2001)
- 건설교통부고시 건축구조설계기준, "대한건축학회", 대한건축학회, ~ (2005)
- 한국콘크리트학회, "건설교통부제정 콘크리트구조설계 기준 해설" (2007), 한국콘크리트학회
- ACI, "ACI Manual of Concrete Practice" (2008), American Concrete Institute
- Recommendations for Practice of Crack Control in Reinforced Concrete Structures, "Architectural Institute of Japan", 32~33 (1990)
- Balazs, G., "Cracking Analysis Based on Slip and Bond Stresses", ACI Material Journal, 90(4), pp.340~348 (1993)
- Broms, B,B., "Effects of Arrangement of Reinforced on Crack Width and Spacing of Reinforced Concrete Members", ACI Journal Proceedings, 62(11), pp.1395~1410 (1965)
- "CEB-FIP, CEB-FIP Model Code 1990, Comite Euro International Du Beton, Paris", ~ (1991)
- Goto, Y., "Studies on Internal Cracks Formed in Concrete Around Deformed Tension Bars", ACI Structural Journal, 68(4), pp.244~251 (1971)
- Lorrain, M., "Cracking Behavior of Reinforced HighStrength Concrete Tension Ties", ACI Structural Journal, 95(5), pp.626~635 (1998)
- Peter, H. Bischoff, "Effects of Shrinkage on Tension Stiffening and Cracking in Reinforced Concrete", Canadian Journal of Civil Engineering, 28, pp.363~374 (2001)
- Russo, G., "Cracking Response of RC Menbers Subjected to Uniaxial Tension", ASCE Journal of Structural Engineering, 118(5), pp.1172~1190 (1992)
- Shunsheng, Y., "Bond Slip and Crack Width Calculations of Tension Menbers", ACI Structural Journal, 85(4), pp.414~422 (1988)
- Chapra, S. C, "Numerical Methods for Engineers", pp.124~127 (2002), McGraw-Hill
- Empelmann M., "Zum nichtlinearen Trag- und Verformungsverhalten Heft 2" (1995), RWTH Aachen
- Kreller, H., "Zum nichtlinearen Trag- und Verformungsverhalten von Stahlbetonstabtragwerken unter Last- und Zwangseinwirkung.Helft 409, Deutscher Ausschuß für Stahlbeton", ~ (1990)
- Noh, S. Y., "Numerical simulation of serviceability, damage evolution and failure of reinforced concrete shells", pp.843~ (2003), computers and structures