Experimental Investigation on the Structural Behaviour of FRC Beam with Partial Replacement of Geogrid in Stirrups

In olden days the structures were designed as load bearing structures as there were no high-rise buildings. Overpopulation necessitates the construction of high-rise buildings to address land scarcity issues. Reinforced concrete was invented to be used in the construction of tall buildings. RCC’s major component, steel, enhances its durability and load-carrying capabilities. However, corrosion of reinforcements is the greatest concern in RCC. RCC constructions use high-quality steel, however exposure to weather and environment can cause corrosion of reinforcements. To avoid or overcome corrosion problems in the reinforcements, an alternate arrangement is required. One such alternate approach is to incorporate plastic reinforcement into RCC structures. This project replaces steel reinforcing with geogrid. In beams, tension reinforcements balance flexural cracks, while stirrups balance shear cracks. We intend to replace steel stirrups with geogrid at various percentages: 25%, 50%, 75%, and 100%. Steel fibres are also inserted to increase the beam’s flexural strength. Both conventional and geogrid-reinforced beams underwent two-point loading tests. The test results for conventional and geogrid reinforced beams are compared and discussed. It has been discovered that the structural behaviour of geogrid reinforced beams enhances load-carrying capacity, displacement, flexural strength, and delays the collapse failure of concrete structures.