Reinforced concrete beams are structural elements that designed to carry transverse external loads. The loads cause bending moment, shear forces and in some cases torsion across their length. Moreover, concrete is strong in compression and very weak in tension. Thus, Steel reinforcement used to take up tensile stresses in reinforced concrete beams.

Furthermore, beams support the loads from slabs, other beams, walls, and columns. They transfer the loads to the columns supporting them. Additionally, beams can be simply supported, continuous, or cantilevered. they can be designed as rectangular, square, T-shaped, and L-shaped sections. Beams can be singly reinforced or doubly reinforced. The latter are used if the depth of the beam is restricted. Finally, in this article, the design of rectangular reinforced concrete beam will be presented.