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The 2020 NEHRP Provisions and ASCE/SEI 7-22 incorporate several notable changes to seismic design of diaphragms. This includes expanded applicability of the ASCE 7-16 Section 12.10.3 alternative design provisions for diaphragms, originally developed in the 2015 NEHRP Provisions. This also includes new Section 12.10.4, codifying the rigid wall-flexible diaphragm (RWFD) methodology published in FEMA P-1026, Seismic Design of Rigid Wall-Flexible Diaphragm Buildings: An Alternative Method. These diaphragm design provisions have been largely driven by new research, including testing and numerical studies. They have been developed to better reflect diaphragm dynamic response and deformation capacity, and to provide improved performance, in some cases with reduced construction cost.

This material will be presented in two webinars. The first webinar will provide a general introduction to seismic design of diaphragms and then focus on design examples implementing Section 12.10.3 provisions. The second webinar will repeat the general introduction and then focus on design examples implementing new Section 12.10.4 alternative RWFD provisions.

Mar 3, 2022 01:00 PM in Eastern Time (US and Canada)

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