Designers using the 2022 edition of the ASCE/SEI standard Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE/SEI 7-22, ASCE, 2022) will find significant changes to the seismic design of diaphragms and their chords and collectors: a new diaphragm design methodology added, an existing methodology expanded, significant changes affecting bare steel deck diaphragms, and more.
In this article, WJE structural engineer Kelly Cobeen (San Francisco) provides an overview of these changes from the designer’s perspective.
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