[1322] SHEAR BEHAVIOR OF RC BEAMS STRENGTHENED BY CFRP GRID AND SPRAYED MORTAR
キーワード：shear failure, RC beam, CFRP grid, sprayed mortar, finite element modelling, Marc-Mentat
The shear failure of reinforced concrete (RC) beams is particularly dangerous due to occurring suddenly and hard to predict. In the experimental study, three RC beams were fabricated. To improve shear capacity, two of these beams were strengthened by using carbon fiber-reinforced polymer (CFRP) grid and sprayed mortar. The four-points bending test were carried out in all beams. Next, the corresponding models in 3D finite-element method (FEM) were simulated. There is a good agreement between simulations and experiments about the load capacity, the failure process and effects of the repair method.