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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.53 No.6
- 발행연도
- 2015.1
- 수록면
- 1,183 - 1,200 (18page)
이용수
초록· 키워드
오류제보하기
Reinforcement corrosion can cause serious safety deterioration to aging concrete structuresexposed in aggressive environments. This paper presents an approach for reliability analyses of deterioratingreinforced concrete structures affected by reinforcement corrosion on the basis of the representativesymptoms identified during the deterioration process. The concrete cracking growth and rebar bond strengthevolution due to reinforcement corrosion are chosen as key symptoms for the performance deterioration ofconcrete structures. The crack width at concrete cover surface largely depends on the corrosion penetrationof rebar due to the expansive rust layer at the bond interface generated by reinforcement corrosion. The bondstrength of rebar in the concrete correlates well with concrete crack width and decays steadily with crackwidth growth. The estimates of cracking development and bond strength deterioration are examined byexperimental data available from various sources, and then matched with symptom-based lifetime Weibullmodel. The symptom reliability and remaining useful life are predicted from the predictive lifetime Weibullmodel for deteriorating concrete structures. Finally, a numerical example is provided to demonstrate theapplicability of the proposed approach for forecasting the performance of concrete structures subject toreinforcement corrosion. The results show that the corrosion rate has significant impact on the reliabilityassociated with serviceability and load bearing capacity of reinforced concrete structures during their servicelife.
목차
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참고문헌 (26)
참고문헌 신청
Bhargava, K. / 2007 / Corrosion-induced bond strength degradation in reinforced concrete: analytical and empirical models / Nucl. Eng. Des 237:1140~1157
Cairns, J. / 2006 / Residual bond strength of corroded plain round bars / Mag. Concrete Res 58(4):221~231
Cempel, C. / 2000 / Symptom reliability and hazard for systems condition monitoring / Mech. Syst. Sig. Proc 14(3):495~505
Ceravolo, R. / 2009 / Symptom‐based reliability and generalized repairing cost in monitored bridges / Reliab. Eng. Syst. Saf 94(8):1331~1339
Chen, H.P. / 2012 / Reliability and optimised maintenance for sea defences / Proceedings of the ICE: Maritime Engineering 165(2):51~64
Cairns, J. / 2006 / Residual bond strength of corroded plain round bars / Mag. Concrete Res 58(4):221~231
Cempel, C. / 2000 / Symptom reliability and hazard for systems condition monitoring / Mech. Syst. Sig. Proc 14(3):495~505
Ceravolo, R. / 2009 / Symptom‐based reliability and generalized repairing cost in monitored bridges / Reliab. Eng. Syst. Saf 94(8):1331~1339
Chen, H.P. / 2012 / Reliability and optimised maintenance for sea defences / Proceedings of the ICE: Maritime Engineering 165(2):51~64
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