Analysis on Fatigue Failure Modes of Reinforced Concrete Beams Strengthened with BFRP

Abstract:

The fatigue failure modes of reinforced concrete beams externally strengthened with basalt fiber reinforced polymer(BFRP) sheets was examined in an experimental and analytical study. One strengthened beam failed due to the debonding and fracture of U-wraps FRP sheet at the anchors,and the others failed the fatigue fracture of the longitudinal tensile reinforcements. Based on Code for Design of strengthening concrete structure, the fatigue failure of RC bending members strengthened with FRP was analysed,and the indicate that with reinforcement ratio of 0.612% and fatigue stress ratio of 0.3, only the fatigue fracture of steel bars occured rather than the crushing of concrete in the compression zone.

• Periodical: Applied Mechanics and Materials (Volumes 744-746)
• Pages: 1367-1370
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.744-746.1367
• Online since: March 2015
• Authors: Xu Jun Chen*, Mu Xiang Dai, Zhong Yang
• Keywords: Analysis, BFRP, Fatigue Failure Mode, RC Beam

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