2- Tensile strength and durability of concrete are neglected.
3- Strain differs linearly over the distance downward of the cross-section.
4- Steel stress differs lineally as far as yielding and lies continuously overyielding.
5- Compressive force and pressure in the concrete are decided from Whitney’s equivalent stress block.
6- The above representation describes how distinct figures have to be chosen for the calculator. The effective depth “d” is set out of the centroid of tension reinforcement extending to the crest of the beam. In case there are 2 layers of tension rebar, divide them with a definite distance and different standards according to ACI 318. The operator of this calculator is well-advised to abide by ACI instructions for beam width, rebar distance, and cover, etc.