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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.12 No.1
- 발행연도
- 2018.1
- 수록면
- 77 - 89 (13page)
이용수
초록· 키워드
오류제보하기
Durability of reinforced concrete (RC) structures is affected by certain environmental conditions and operational actions which can reduce their lifetime significantly. Among these actions, this paper proposes a stochastic model that accounts for the combined effects of chloride-induced corrosion, climate change and cyclic loading. Separately, corrosion leads to cross-section reduction, climate change produces changes in temperature and humidity and fatigue induces nucleation and propagation of cracks in the rebars. When considered together, pitting corrosion nucleates cracks while environmental factors affect the kinematics of chloride ingress and corrosion propagation. The proposed approach is illustrated with the reliability analysis of a bridge girder subjected to cyclic loading under various environmental conditions. The overall results indicate that climate change effect induces lifetime reductions ranging between 1.4 and 2.3% if fatigue load is neglected. Under cyclic loading, total lifetime reduction increases up to 7%.
목차
Abstract
1. Introduction
2. Deterioration Model
3. Modeling Weather Including Climate Change Effects
4. Probabilistic Approach
5. Numerical Example
6. Conclusions
References
참고문헌 (47)
참고문헌 신청
Ahn, S. H., Lawrence, F. V., & Metzger, M. M. (1992). Corrosion fatigue of an HSLA steel. Fatigue and Fracture of Engineering Materials and Structures, 15, 625?642.
Ahn, W., & Reddy, D. V. (2001). Galvanostatic testing for the durability of marine concrete under fatigue loading. Cement and Concrete Research, 31, 343?349.
Akita, H., Fujiwara, T., & Ozaka, Y. (1997). A practical procedure for the analysis of moisture transfer within concrete due to drying. Magazine of Concrete Research, 49(179), 129?137.
Al-Hammoud, R., Soudki, K., & Topper, T. H. (2011). Fatigue flexural behavior of corroded reinforced concrete beams repaired with CFRP sheets. Journal of Composites for Construction, 15(1), 42?51. https://doi.org/10.1061/(asce)cc.1943-5614.0000144.
Bastidas-Arteaga, E., Bressolette, P., Chateauneuf, A., & Sa´nchez-Silva, M. (2009). Probabilistic lifetime assessment of RC structures under coupled corrosion-fatigue processes. Structural Safety, 31(1), 84?96. https://doi.org/10.1016/j.strusafe.2008.04.001.
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