Effect of Stirrups on Shear Behaviour in an RC Beam

Abstract: In this paper, Effect of stirrups on shear behavior in an RC beam has been discussed. Concrete is remarkably strong in compression but weak in tension. Hence, the use of plain concrete as a structural material is limited to situations where significant tensile stresses and strain do not develop. This weakness in the concrete makes it to crack under small loads, at the tensile end. To overcome this the reinforced cement concrete is used, RCC is strong in both tension and compression, hence it is widely used. In an RCC beam, shear is mostly occurred at the edges of the beam. In an standard RCC beam the stirrups are provided at equal spacing throughout the entire beam. In this experimental study, the stirrups are provided at the edges where the shear are occurred. The beam size is about 700mm X 150mm X 150mm. In the first beam specimen only 3stirrups are provided at both the edges, then the stirrups are reduced to two and one at the edges for the respective beam specimens. Flexural strength test is carried out to determine the strength of the RCC beam and the results are compared with one another. By reducing the stirrups, the cost can be minimized and the work time can be reduced.

Keywords: RC beam, Reinforced cement concrete (RCC), UHPFRC