About the author  ⁄ Kelly Cobeen, S.E.

Kelly Cobeen is a Principal with Wiss, Janney, Elstner Associates, Inc. (kcobeen@wje.com).

Horizontal Diaphragm Seismic Design

Using ASCE/SEI 7-22

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. This leaves the user needing to choose between three methods of diaphragm seismic design and needing to incorporate other updates into their designs. The changes were generated from research and code development efforts that go back years, with contributions from many, including research and guideline development teams and the NEHRP and ASCE 7 update participants. This article provides an overview of these changes to diaphragm seismic design from the designer’s perspective.

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Oct, 2022 By In Structural Design Comments 0

Hibernia Bank Building

Historic Renovation and Seismic Retrofit

Located in San Francisco, the landmark Hibernia Bank Building recently underwent an ambitious historical renovation and seismic retrofit. First constructed in 1892, with a major addition just a few years later, the building served as headquarters for the Hibernia Bank for more than 90 years, was briefly used as a police department substation, but was then left vacant for a decade. In the late 2000s, new owner Dolmen Property Group took on the sizable task of renovating the building to allow occupancy once again. …

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Mar, 2018 By , and In Feature Comments 0
STRUCTURE magazine