Design method for calculating load-carrying capacity of reinforced concrete beams strengthened with external FRP

Abstract

This article analyses the load-carrying capacity of reinforced concrete beams strengthened with external FRP reinforcement. It provides a method for calculating the load-carrying capacity of strengthened beams. The calculation method enables to assess the influence of the bond slip on the load-carrying capacity of beams. A database has been created for experimental results. Calculations of the load-carrying capacity of strengthened beams have been made. The received theoretical results have been compared to the experimental ones. Statistical evaluation of the calculation method for load-carrying capacity has been carried out. The comparative and statistical analysis of the received results shows that the calculated load-carrying capacity of strengthened beams is similar to the one received in the course of experiments.