Chapter B includes the following major change in this edition of the Provisions:
(1) Clarification is added that chords, collectors, and truss diaphragms are part of the SFRS.
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AISC 341-22, Seismic Provisions for Structural Steel Buildings
Last Updated 29 Oct 2026
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Chapter B includes the following major change in this edition of the Provisions:
(1) Clarification is added that chords, collectors, and truss diaphragms are part of the SFRS.