ANSI/AISC 341-22An American National Standard
Seismic Provisions for Structural Steel Buildings
September 26 2022
dated July 12 2016 and all previous wersions Supersedes the Seismic Provisions for Structural Steel Buildings.
Approved by the Committee on Specifications
ANSI/AISC 341-22An American National Standard
Seismic Provisions for Structural Steel Buildings
September 26 2022
dated July 12 2016 and all previous versions Supersedes the Seismic Provisions for Structural Steel Buildings
Approved by the Committee on Specifications
AISC 2022
by
American Institute of Steel Construction
reprodaced in any form without the written permission of the publisher. All rigiuts reserved. This book or cny part thereof must not beThe AISC logo is α registered trademark: of AISC.
The information presented in this publication has been prepared by a balanced mitteefollowing American National Standards Institute (ANSI) consensus procedures and recognized principles of design and construction. While it is believed to be accurate thisprofessional examination and verification of its accuracy suitability and applicability by a information should not be used or relied upon for any specific application without petentlicensed engineer or architect. The publication of this information is not a representationor warranty on the part of the American Institute of Steel Construction its officers agents employees or mittee members or of any other person named herein that this informationis suitable for any general or particular use or of freedom from infringement of any patent orspecifically disclaimed. Anyone making use of the information presented in this publication patents. All representations or warranties express or implied other than as stated above arean qns wo use qen e snsse
Caution must be exercised when relying upon standards and guidelines developed by other bodies and incorporated by reference herein since such material may be modified or amendedfrom time to time subsequent to the printing of this edition. The American Institute of Steelit by reference at the time of the initial publication of this edition. Construction bears no responsibility for such material other than to refer to it and incorporate
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PREFACE
(This Preface is not a part of ANSI/AISC 341-22 Seismic Provisions for Stractural SteelBaidingz but is included for informational purposes only.)
to as the Specificarion) is intended to cover mon design criteria. This standard Seismic The Specificarion for Strucfaraf SteeI Buildings (ANSI/AISC 360-22) (hereafter referredProvisions for Strucfaraf Steel Barildings (ANSI/AISC 341-22) (hereafter referred to as theseProvisions) is a separate consensus standard to be used in conjunction with the Specification that addresses the design and construction of structural steel and posite steel-concretebuilding systems specifically detailed for seismic resistance.
This standard adopts Prequalified Connections for Special cnd Intermediate Steel MomentFrames for Seismic Applications (ANSI/AISC 358-22) by reference. ANSI/AISC 358 speci- fies design detailing fabrication and quality criteria for connections that are prequalifiedin accordance with these Provisions for use with special and intermediate moment frames. While these Provisions are modified every five or six years ANSI/AISC 358 may be pro-cessed more frequently and newer editions of ANSI/AISC 358 may be recognized andenforced by the applicable building code.
Design Loads and Associcated Criteria for Buildings aned Otier Stractares (ASCE/SEI 7-22). These Provisions were being developed in the same time frame as a revision of MinimunASCE/SEI 7-22 is to be used concurrently with this standard for a fully coordinated package.
These Provisions are the result of the consensus deliberations of a mittee of structuralgraphical distribution throughout the United States. The mittee includes approximately engineers with wide experience and high professional standing representing a wide geo-research and teaching and engineers employed by steel fabricating and producing pa- equal numbers of engineers in private practice and code agencies engineers involved innies. The contributions and assistance of more than 50 additional professional volunteersworking in task mittees are also hereby acknowledged.
The Symbols Glossary Abbreviations and Appendix are all considered part of this docu- ment. Acpanying these Provisions is a nonmandatory Commentary with backgroundinformation and nonmandatory user notes interspersed throughout to provide guidance on
of the Provisions including the following: A number of significant technical modifications have also been made since the 2016 edition
New presentation of Table A3.1 clarifying allowable grades strengths and any other limitations on the material• Addition of ASTM A709/A709M to the list of permitted materials for use in seismicforce-resisting systems
