Analysis of calculation methods for bending concrete elements reinforced with FRP bars

The article analyzes calculation methods for determining the flexural resistance of concrete elements reinforced with FRP bars. Differences in the basic assumptions of the particular methods are highlighted. The algorithms for determining the flexural resistance of the elements, included in the recommendations developed by different centres and institutions, are comparatively analyzed. The effectiveness of the cross section is evaluated on the basis of the moment resistance calculated using the particular algorithms. An analysis and synthesis of the existing research on bending concrete elements reinforced with GFRP bars are carried out. Experimental flexural resistance results are compared with the ones yielded by the discussed algorithms.