Fatigue test of RC beams strengthened with prestressed CFLs

Xinyan Guo; Peiyan Huang; Guangwan Liu; Jianhe Xie

doi:10.1117/12.839052

24 August 2009 Fatigue test of RC beams strengthened with prestressed CFLs

Xinyan Guo, Peiyan Huang, Guangwan Liu, Jianhe Xie

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 737519 (2009) https://doi.org/10.1117/12.839052
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

Applying prestress to fiber reinforced polymer (FRP) can be used more efficiently since a greater portion energy of its tensile capacity is engaged. Based on carbon fiber laminate (CFL), fatigue tests are made to find out the fatigue behavior of reinforced concrete (RC) beams strengthened with prestressed CFL. The interfacial debonding is a main failure mode for RC beams strengthened with prestressed CFLs under the cyclic loading. Furthermore, it has been found that the stress value of CFLs decide whether the additional prestressing has a negative or positive effect on the fatigue behavior of the strengthened beam, and the excessive prestressing would reduce the fatigue life of the strengthened beam.

Citation Download Citation

Xinyan Guo, Peiyan Huang, Guangwan Liu, and Jianhe Xie "Fatigue test of RC beams strengthened with prestressed CFLs", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737519 (24 August 2009); https://doi.org/10.1117/12.839052

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