LRFD (Load and Resistance Factor Design)

Load and Resistance Factor Design (LRFD) is a method used in engineering to ensure buildings and structures are safe and reliable. It involves applying safety factors to both the loads (forces like weight and pressure that the structure will bear) and the resistance (strength of materials). By adjusting these factors based on uncertainties—like weather impacts or material flaws—engineers can design structures that not only meet safety standards but also optimize material use. LRFD helps balance safety, performance, and economy in construction projects.