Abstract
Fiber reinforced plastic reinforced concrete structure has been developed rapidly since the late 1990s in China. The optimization of the reinforce method has achieved a lot of research achievements. However, its reinforcement mechanism has not been well solved, and there are still many problems worth studying. On the basis of summarizing the strengthening methods which have been reported, this paper points out the existing problems of existing reinforcement methods and summarizes the advantages of the reinforcement of fiber plastics. Based on the experimental data, the reinforcement effect of fiber reinforced plastic reinforced concrete square columns is analyzed. Aiming at the fiber reinforced plastic confined square columns under different reinforcement amounts, the reinforcement mechanism of fiber reinforced plastic confined concrete columns is studied with theory and numerical analysis.