David A. Fanella, Ph.D., S.E., P.E., F.ACI, F.ASCE, F.SEI, is the senior director of engineering at the Concrete Reinforcing Steel Institute. He has 30 years of experience in the design of a wide variety of buildings and other structures and has authored numerous technical publications, including Structural Load Determination: 2018 IBC and ASCE/SEI 7-16 and Reinforced Concrete Structures: Analysis and Design, Second Edition. His other books in the Time-Saving Methods series include Wind Loads, Flood and Tsunami Loads, and Rain, Snow, and Ice Loads.