PART 1 - An Overview of Changes in ASCE 7-22 on Wind Loads (Recording)

ASCE 7-22 is adopted by the 2024 IBC, which is in the process of being adopted by major local jurisdictions, such as the State of California and the State of New York. The changes from ASCE 7-16 to ASCE 7-22 are so numerous and so substantive that learning about them needs to start now. The chapter on flood loads is the only chapter that has escaped any change. There are huge changes in snow load, ice load, and tsunami load provisions. There is a whole new chapter (32) on tornado loads. Risk Category III or IV structures located in the tornado-prone region shown in a figure are required to be designed and constructed to resist the greater of the tornado loads determined in accordance with Chapter 32 or the wind loads determined in accordance with Chapters 26 through 31. The changes in Chapters 11-23 on earthquake loads and Chapters 26-31 on wind loads are many and many of the seismic changes mark significant departures from past practice. ASCE 7-22 load combinations and importance factors are also quite different because of changes in the load chapters.

We have recently presented a four-part seminar on the seismic changes. This two-part webinar concentrates on wind and tornado loads. Part 1 is on the many significant changes in Chapters 26 through 31, including the new design wind speed maps. Part 2 is on the new Chapter 32 on tornado loads. The applicability of the chapter and the design of structures for tornado loads using the chapter are discussed.

Speaker Bio

Dr. S. K. Ghosh is known internationally for his work in earthquake engineering. He has influenced seismic design provisions in the United States for many years by serving on or chairing numerous committees and advisory panels. He specializes in the analysis and design, including wind and earthquake resistant design, of reinforced and prestressed concrete structures. Dr. Ghosh is active on many national technical committees and is a fellow of ASCE, SEI, ACI, and PCI. He is a member of ACI Committee 318, Standard Building Code, and the ASCE 7 Standard Committee (Minimum Design Loads for Buildings and Other Structures). He is a former member of the Boards of Direction of the Building Seismic Safety Council (BSSC), the American Concrete Institute (ACI), and the Earthquake Engineering Research Institute (EERI). In addition to authoring many publications in the area of structural design, he has investigated and reported on structural performance in recent earthquakes.