This document appears to be a presentation on beams given by a group of civil engineering students at Dhaka University of Engineering & Technology. The presentation covers the definition of a beam, different types of beams classified by shape, design, equilibrium, and support conditions. It also discusses the size, reinforcement, and covering of beams. Key points covered include the types and spacing of longitudinal and transverse reinforcement, as well as the minimum cover requirements. The presentation concludes with descriptions of different failure modes in beams, such as flexural, shear, and diagonal failures.