Research on Fatigue S-N Curves of Corrosion-Damaged Reinforcement

Abstract:

Article Preview

Three corrosion degrees of reinforcement are chosen in this paper, which are considered to simulate minor, medium and severe degrees of corrosion in this field. A reinforcement mass loss about 5% is used to define a minor degree of corrosion, whereas mass losses about 10% and 20% are used to define medium and severe degree of corrosion, respectively. Fifteen specimens of the three corrosion degrees and seven uncorroded specimens are tested under fatigue. According to the results of the fatigue tests, using stress range as fatigue parameter and 50% as guaranteed probability, the fatigue S-N curves of the four different corrosion degrees of deformed reinforcement adaptable for fatigue reliability evaluation are put forward. These curves provide necessary principle for predicting the residual fatigue lives of aged existing reinforced concrete bridges.

Info:

Periodical:

Key Engineering Materials (Volumes 324-325)

Edited by:

M.H. Aliabadi, Qingfen Li, Li Li and F.-G. Buchholz

Pages:

607-610

DOI:

10.4028/www.scientific.net/KEM.324-325.607

Citation:

H. W. Tang et al., "Research on Fatigue S-N Curves of Corrosion-Damaged Reinforcement", Key Engineering Materials, Vols. 324-325, pp. 607-610, 2006

Online since:

November 2006

Export:

Price:

$35.00

[1] Younovich, M., and Thompson, N. G.: Corrosion of Highway Bridges: Economic Impact and Control Methodologies[J]. Concrete International, V. 25, No. 1, Jan. 2003, pp.52-57.

[2] Kato E. Iwanami M: Influence of Rebar Corrosion on Structural Performance of RC Beams Subject to Reversed Cyclic Loading[C]. Proceedings of the 9th EASEC, Bali, Indonesia, 2003, RCS, p.205�210.

[3] Nisiwaki K: Bending Fatigue Property of Salted Reinforced Concrete Beams with Corroded Steel Bars Due to Exposed to the Atmosphere for 13 years[C]. Proceedings of the 56 th Annual Conference of the JSCE, 2001, pp, 636�637.

[4] Fang Cong-qi: Influence of Corrosion on Bond in Reinforced Concrete under Monotonic and Cyclic Loading[C]. Proceedings. Int. Workshop on Durability of Reinforced Concrete under Combined Mechanical and Climatic Loads(CMCL) Qingdao, China, Oct. 2005, p.207.

[5] Tamer El Maaddawy: Long-Term Performance of Corrosion-Damaged Reinforced Concrete Beams[J]. ACI Structural Journal, V. 102, No5. 2005, p.649�656.

DOI: 10.14359/14660

[6] Sobhy Gouda Aly Masoud: Behaviour of Corroded Reinforced Concrete Beams Repaired with FRP Sheets under Monotonic and Fatigue Loads[D]. The University of Waterloo, Ontario, (2002).

In order to see related information, you need to Login.