This calculator estimates the flexural strength of a reinforced concrete beam reinforced with Fiber Reinforced Polymer (FRP) laminates. It requires inputs such as beam width, depth, reinforcement yield strength, and FRP laminate strength. The calculator then uses these inputs to estimate the flexural strength based on a standard formula.

The formula used is: σ = (0.85 * f'c * b * d) + (fy * As) + (fFRP * Af), where σ is the flexural strength, f'c is the concrete compressive strength, b is the beam width, d is the beam depth, fy is the reinforcement yield strength, As is the area of steel reinforcement, fFRP is the FRP laminate strength, and Af is the area of the FRP laminate.

Ensure that all input values are in the correct units (mm for dimensions, MPa for strengths) for accurate results. The calculator provides a quick and easy way to estimate the flexural strength of a beam, which can be useful in structural engineering and design.