Research progress of fatigue performance of RC beams strengthened with externally bonded FRP

doi:10.19936/j.cnki.2096-8000.20210728.018

Abstract

Abstract: Fiber reinforced polymer (FRP) is widely used in reinforcement engineering because of its light weight, high strength and good fatigue resistance. Under the action of fatigue load, the properties of various materials and the interface bond between FRP and concrete are deteriorating, and the existing damage is accumulating, which greatly reduces the safety of reinforced concrete beams. In this paper, the experimental research, numerical simulation and theoretical analysis of the flexural fatigue performance of reinforced concrete beams strengthened with externally bonded FRP are summarized in detail, and the fatigue performance of FRP-concrete bonding interface and corroded reinforced concrete strengthened beams are introduced. The shortcomings of existing research are analyzed, and some suggestions for the direction of future research are put forward.

Key words: strengthened with externally bonded FRP, RC beams, bonding interface, flexural fatigue behavior, composites

CLC Number:

TB332

ZHANG Zhi-mei, YANG Ming. Research progress of fatigue performance of RC beams strengthened with externally bonded FRP[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(7): 121-128.

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