Mathematical Analysis of Rectangular Reinforced Concrete Beam Externally Laminated with GFRP Sheet

Abstract

Reinforced construction structures are constructed manually to the reinforced concrete structure, and the rehabilitation progression was held to avoid the damaged structures due to static loads. In the thesis related, the finite element model is to stimulate the beam to analyze with the design criteria to externally wrapped RCC beam. This process is one of the achievements in the modern civil engineering field. The thesis presents the retrofitting method to improve their force and rigidity by the cover of the GFRP sheet on externally reinforced material. An analytical representation is proposed to predict the shear capacity strengthened through the glass fiber reinforced polymer sheet (GFRP). The two-point load was applied at the beam bottom surface at a specific distance and held constant during the test. The beam setup should be simply supported under the two hinged support, and the edges are free in condition and externally strengthened by the GFRP sheet. The GFRP sheets enhancing the ductility and to transmit the collapse method to hold up the shear collapse manner of load augmentation. The force and deflection result is evaluated to define by a strengthen beam and unstrengthen beam. This numerical analysis method shows that the RCC arrangement strengthened among the GFRP sheet can increase their force, rigidity and energy dissipation capacity.