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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.11 No.2
- 발행연도
- 2017.6
- 수록면
- 247 - 259 (13page)
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초록· 키워드
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This paper presents a fatigue assessment model that was developed for corroded reinforced concrete (RC) beams strengthened using prestressed carbon fiber-reinforced polymer (CFRP) sheets. The proposed model considers the fatigue properties of the constituent materials as well as the section equilibrium. The model provides a rational approach that can be used to explicitly assess the failure mode, fatigue life, fatigue strength, stiffness, and post-fatigue ultimate capacity of corroded beams strengthened with prestressed CFRP. A parametric analysis demonstrated that the controlling factor for the fatigue behavior of the beams is the fatigue behavior of the corroded steel bars. Strengthening with one layer of non-prestressed CFRP sheets restored the fatigue behavior of beams with rebar at a low corrosion degree to the level of the uncorroded beams, while strengthening with 20-and 30%-prestressed CFRP sheets restored the fatigue behavior of the beams with medium and high corrosion degrees, respectively, to the values of the uncorroded beams. Under cyclic fatigue loading, the factors for the strengthening design of corroded RC beams fall in the order of stiffness, fatigue life, fatigue strength, and ultimate capacity.
목차
Abstract
1. Introduction
2. Fatigue Assessment Model
3. Model Application
4. Conclusions
References
참고문헌 (37)
참고문헌 신청
ACI Committee 440 (2000). Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures, ACI.
Ai-Hammoud, R., Soudki, K., & Topper, T. H. (2010). Bond analysis of corroded reinforced concrete beams under monotonic and fatigue loads. Journal Cement Concrete Composites, 32(3), 194?203.
Ai-Hammoud, R., Soudki, K., & Topper, T. H. (2011). Fatigue Flexural behaviour of corroded reinforced concrete beams repaired with CFRP sheets. ASCE Journal Composites for Construction, 15(1), 42?51.
Almusallam, A. A. (2001). Effect of corrosion on the properties of reinforcing steel bars. Journal Construction and Building Materials, 15(8), 361?368.
Al-Rousan, R., & Issa, M. (2011). Fatigue performance of reinforced concrete beams strengthened with CFRP sheets. Journal Construction and Building Materials, 25(8), 3520?3529.
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UCI(KEPA) : I410-ECN-0101-2018-532-000881245