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http://dx.doi.org/10.4334/JKCI.2010.22.2.179

An Effect of Steel Corrosion on Bond Stress-slip Relationship under Repeated Loading  

Kim, Chul-Min (Korea Expressway Corporation)
Park, Jong-Bum (Research Institute of Energy and Resources, Seoul National University)
Chang, Sung-Pil (Dept. of Mega Buildings and Bridges, SungKyunKwan University)
Kim, Jee-Sang (Dept. of Civil Engineering, Seokyeong University)
Publication Information
Journal of the Korea Concrete Institute / v.22, no.2, 2010 , pp. 179-186 More about this Journal
Abstract
The bond between steel and concrete in reinforced concrete members is essential to resist external load, but the bond mechanism in reinforced concrete beams deteriorated by steel corrosion has not been clearly known yet. Most existing researches have dealt with the bond behavior of corroded steel under monotonic loading, but scarce are researches dealing with bond behavior of corroded steel under repeated loading. This study includes the experimental investigation on the bond behavior with respect to the various degrees of steel corrosion under repeated loading. According to the test results, the bond strength of corroded steel under monotonic loading increases as the rate of steel corrosion increases unless the splitting crack occurs. The slip versus number of load cycles relation was found to be approximately linear in double logarithmic scale, not only in specimens without steel corrosion but also in specimens with steel corrosion. The test results also show that the steel corrosion does not negatively affect the bond strength of corroded steel after repeated loading unless the splitting crack occurs. But the fatigue life decreases sharply after splitting crack occurs. This research will be helpful for the realistic durability design and condition assessment of reinforced concrete structures.
Keywords
steel corrosion; repeated loading; bond stress-slip relation; bond strength; fatigue life;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Yankelevsky, D. Z., “Analytical Model for Bond-Slip Behavior Under Monotonic Loading,” Building and Environment, Vol. 20, No. 3, 1985, pp. 163-168.   DOI   ScienceOn
2 CEB-FIP Model Code 1990, “Model Code for Concrete Structures,” Comite Euro-International du Beton, Thomas Telford, 1993, pp. 82-86.
3 Oh, B. H. and Kim, S. H., “Realistic Models for Local Bond Stress-Slip of Reinforced Concrete under Repeated Loading,” Journal of Structural Engineering, Vol. 133, No. 2, pp. 216-224.   DOI   ScienceOn
4 이재열, 김병국, 홍기섭, 최완철, “반복하중시 철근 마디 높이에 따른 부착 손상특성,” 콘크리트학회 논문집, 15권, 1호, 2003, pp. 17-24.   과학기술학회마을   DOI   ScienceOn
5 정하태, “철근 부식과 피로하중을 고려한 철근콘크리트 구조물의 피로부착거동에 관한 실험적 연구,” 서울대학교 공학석사학위논문, 2006, pp. 9-15, 32-47.
6 Fang, C., Lundgren, K., Chen, L., and Zhu, C., “Corrosion Influence on Bond in Reinforced Concrete,” Cement and Concrete Research, Vol. 34, No. 11, 2004, pp. 2159-2167.   DOI   ScienceOn
7 김기현, “철근 부식에 의한 콘크리트 피복의 균열생성에 대한 실험 및 해석연구,” 서울대학교 공학석사학위논문, 2002, pp. 2-12.
8 Coronelli, D. and Gambarova, P., “Structural Assessment of Corroded Reinforced Concrete Beams : Modeling Guidelines,” Journal of Structural Engineering, Vol. 130, No. 8, 2004, pp. 1214-1224.   DOI   ScienceOn
9 Lee, H. S., Takafumi, N., and Fuminori, T., “Evaluation of the Bond Properties between Concrete and Reinforcement as a Function of the Degree of Reinforcement Corrosion,” Cement and Concrete Research, Vol. 32, No. 8, 2002, pp. 1313-1318.   DOI   ScienceOn
10 권영웅, 최봉섭, 정용식, “철근 부식상태에 따른 철근콘크리트 보의 슬립특성,” 콘크리트학회 논문집, 11권, 6호, 1999, pp. 129-135.   과학기술학회마을
11 Auyeung, Y., Balaguru, P., and Chung, L., “Bond Behavior of Corroded Reinforcement Bars,” ACI Materials Journal, Vol. 97, No. 2, 2000, pp. 214-200.
12 Pochamart, S. and Harmon, T., “Bond-slip Model for Generalized Excitations Including Fatigue,” ACI Materials Journal, Vol. 86, No. 5, 1989, pp. 465-474.
13 Balazs, G. L., “Fatigue of Bond,” ACI Materials Journal, Vol. 88, No. 6, 1991, pp. 620-629.
14 CEB-FIP Bulletin 10, “State-of-the-Art Reports : Bond of Reinforcement in Concrete,” fib Bulletins, 2000, pp. 188-190.
15 김세훈, “반복하중을 받는 철근콘크리트 휨부재의 균열폭 예측 및 잔존수명 평가,” 서울대학교 공학박사학위논문, 2004, pp. 7-39.
16 ACI Committee 408, “State-of-the-Art Report: Bond under Cyclic Loads,” ACI Materials Journal, Vol. 88, No. 6, 1992, pp. 669-673.
17 Rehm, G. and Eligehausen, R., “Bond of Ribbed Bars Under High Cycle Repeated Loads,” ACI Journal Proceedings, Vol. 76, No. 2, 1979, pp. 297-310.