A simply supported beam is a structural element that is supported at both ends, allowing it to freely rotate and deflect under load. This type of beam is commonly used in construction and engineering because it provides a straightforward way to support loads while maintaining stability. The ends of the beam are typically placed on supports, which can be walls, columns, or other structural elements. When a load is applied to a simply supported beam, it experiences bending and shear forces. The maximum bending moment occurs at the center of the beam, while the shear force varies along its length. Understanding the behavior of a simply supported beam is essential for designing safe and effective structures, such as bridges and buildings.