A Comparison Between Inclined Shear Reinforcement and Loop Shear Reinforcement on Rc Beam: Finite Element Approach

Abstract

In this present study, a numerical analysis has been performed to compare the shear resisting capacities between beams with conventional loop stirrup and inclined stirrup. Resisting the shear force is one of the key features of stirrups. A rarely used and uncommon inclined stirrup setup is analyzed in this study and new findings are compared with the results of loop stirrup. Two sets of beams (150x300x1960mm) are analyzed to determine the ultimate shear force resisting capacities, displacement, and stress resistance capacities. It was observed that the beam with an inclined stirrup showed ultimate shear resistance up to 187.24 KN compared to the beam with a loop stirrup setup which was 114.24 KN. Displacement of the inclined stirrup setup and the loop stirrup setup was 2.38 mm and 4.21 mm. Stress resistance and distribution pattern was also improved upon using inclined stirrup. Flexural and Shear Crack patterns of the beams at the ultimate load are also predicted from numerical analysis. Numerical study has been carried out by using Finite Element Software ABAQUS. Finally, these results were also compared with the theoretical formula available in the literature to justify the numerical analysis.

Behavior of reinforced concrete beam with CFRP and GFRP laminates

“…For the GFRP-strengthened beams, failure occurred due to crushing of concrete at mid-span or splitting of concrete at the tension face (Table 5). The GFRP-strengthened beams had a higher failure load than the un-strengthened beam, but it was lower than the CFRP-strengthened beams [20]. The failure caused by splitting of concrete at the tension face indicates that the GFRP laminates were effective in controlling the propagation of cracks in the concrete, similar to the CFRP laminates [21][22][23][24].…”