This article from Engineering Discoveries explains the design of main and secondary beams in construction. It details the crucial roles of these beams in load-bearing structures, emphasizing the importance of proper reinforcement using hanger bars, close rings, shear links, and reinforcement bar placement. The article also addresses design considerations for beams of equal and unequal depths, highlighting the need for careful calculations to ensure structural stability. Finally, it provides a step-by-step approach for calculating beam reinforcement, covering load requirements, bending moments, shear forces, and stirrup spacing.