Strain-Based Fatigue Analysis of RC Beams Strengthened with FRP Laminates

Abstract:

The method of strain-based fatigue analysis is applied on the study of fatigue behavior of reinforced concrete (RC) beams strengthened with fiber reinforced polymer (FRP) laminates in this paper. Based on the investigation of fatigue performance of RC beams strengthened with FRP laminates presented in the published literatures, the values of stress concentration factors and the coefficients in Neuber’s rule are suggested. The exponent of fatigue strength in Manson-Coffin formula is discussed so as to having a general stain-life curve which is suitable for the fatigue behavior prediction of RC beam strengthened with FRP laminates. The S-N curves of different stress ratios can be developed and the fatigue lives of the strengthened beams are pointed out.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 1740-1745
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.1740
• Online since: May 2012
• Authors: Li Hua Huang, Yu Jing Li, Tian Qing Li, Qing Xiang Wang
• Keywords: Fatigue Life, FRP Laminates, RC Beam, Strain-Based Analysis

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DOI: 10.1061/(asce)cc.1943-5614.0000144

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