Seismic Provisions for Structural Steel Buildings - AISC

1 ANSI/AISC 341-16 An American National StandardSeismic Provisions for Structural Steel BuildingsJuly 12, 2016 Supersedes the Seismic Provisions for Structural Steel Buildings dated June 22, 2010 and all previous versionsApproved by the Committee on SpecificationsAMERICAN INSTITUTE OF Steel CONSTRUCTION130 East Randolph Street, Suite 2000, Chicago, Illinois 60601 15/15/2017 11:37:03 AMANSI/AISC 341-16 An American National StandardSeismic Provisions for Structural Steel BuildingsJuly 12, 2016 Supersedes the Seismic Provisions for Structural Steel Buildings dated June 22, 2010 and all previous versionsApproved by the Committee on SpecificationsAMERICAN INSTITUTE OF Steel CONSTRUCTION130 East Randolph Street, Suite 2000, Chicago, Illinois 60601 SPEC 15/5/17 1:45 PMSeismic Provisions for Structural Steel Buildings , July 12, 2016 American Institute of Steel ConstructionAISC 2016byAmerican Institute of Steel ConstructionAll rights reserved.

2 This book or any part thereof must not be reproduced in any form without the written permission of the AISC logo is a registered trademark of information presented in this publication has been prepared by a balanced committee following American National Standards Institute (ANSI) consensus procedures and recognized principles of design and construction. While it is believed to be accurate, this information should not be used or relied upon for any specific application without competent professional examination and verification of its accuracy, suitability and applicability by a licensed engineer or architect. The publication of this information is not a representation or warranty on the part of the American Institute of Steel Construction, its officers, agents, employees or committee members, or of any other person named herein, that this information is suitable for any general or particular use, or of freedom from infringement of any patent or patents.

3 All representations or warranties, express or implied, other than as stated above, are specifically disclaimed. Anyone making use of the information presented in this publication assumes all liability arising from such 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 amended from time to time subsequent to the printing of this edition. The American Institute of Steel Construction bears no responsibility for such material other than to refer to it and incorporate it by reference at the time of the initial publication of this in the United States of SPEC 25/5/17 1:45 PMSeismic Provisions for Structural Steel Buildings , July 12, 2016 American Institute of Steel (This Preface is not a part of ANSI/AISC 341-16, Seismic Provisions for Structural Steel Buildings , but is included for informational purposes only.)

4 AISC 360, Specification for Structural Steel Buildings (ANSI/AISC 360-16) is intended to cover common design criteria. Accordingly, it is not feasible for it to also cover all of the special and unique problems encountered within the full range of Structural design prac-tice. This document, Seismic Provisions for Structural Steel Buildings (ANSI/AISC 341-16) (hereafter referred to as the Provisions ), is a separate consensus standard that addresses one such topic: the design and construction of Structural Steel and composite Structural Steel /reinforced concrete building systems specifically detailed for Seismic Symbols, Glossary, and Abbreviations are all considered part of this document.

5 Accompanying the Provisions is a nonmandatory Commentary with background infor-mation and nonmandatory user notes interspersed throughout to provide guidance on the specific application of the number of significant technical modifications have also been made since the 2010 edi-tion of the Provisions , including the following: Inclusion of ASTM A1085/A1085M material New Provisions for diaphragms, chords and collectors, particularly horizontal truss diaphragms Inclusion of Ry in Table for more accurate slenderness limits and to avoid use of lower Fy values for dual-certified material Requirement that simultaneous inelasticity be considered for columns partici-pating in two or more Seismic force resisting systems Clearer Provisions on required strength of column splices and bases, including a reduced shear for column bases.

6 Returning the requirements to closer to those in the 2005 Provisions Allowance for non-full strength connections in special moment frames Option to use partial-joint-penetration groove welds in moment-frame column splices Revised and clarified continuity plate, doubler plate, and associated welding Provisions Multi-tiered braced frame Provisions for ordinary concentrically braced frames, special concentrically braced frames, and buckling-restrained braced frames Numerous revisions to special plate shear wall requirements New application of composite plate shear wall system using concrete-filled Steel panel walls Power-actuated fasteners permitted in the protected zone up to a certain diameter New criteria to prequalify connections for composite moment framesAISC_SP SPEC 35/5/17 1:45 PMSeismic Provisions for Structural Steel Buildings , July 12, 2016 American Institute of Steel ConstructionThe AISC Committee on Specifications, Task Committee 9 Seismic design is responsi-ble for the ongoing development of these Provisions .

7 The AISC Committee on Specifications gives final approval of the document through an ANSI-accredited balloting process, and has enhanced these Provisions through careful scrutiny, discussion and suggestions for improvement. The contributions of these two groups, comprising well more than 80 struc-tural engineers with experience from throughout the Structural Steel industry, is gratefully acknowledged. AISC further acknowledges the significant contributions of the building Seismic Safety Council (BSSC), the Federal Emergency Management Agency (FEMA), the National Science Foundation (NSF), and the Structural Engineers Association of California (SEAOC).

8 This specification was approved by the Committee on Specifications:R. Shankar Nair, ChairmanPatrick J. Fortney, Vice-ChairmanAllen AdamsTaha D. Al-ShawafWilliam F. BakerJohn M. Barsom, EmeritusReidar BjorhovdeRoger L. Brockenbrough, EmeritusCharles J. CarterGregory G. DeierleinCarol J. DruckerW. Samuel EasterlingDuane S. Ellifritt, EmeritusBruce R. Ellingwood, EmeritusMichael D. EngelhardtShu-Jin Fang, EmeritusSteven J. Fenves, EmeritusJames M. FisherJohn W. Fisher, EmeritusTheodore V. Galambos, EmeritusLouis F. GeschwindnerRamon E. GilsanzLawrence G. GriffisJohn L. Gross, IIIJ erome F. HajjarPatrick M. HassettTony C. HazelRichard A. Henige, V. HollandJohn D.

9 HooperNestor R. IwankiwWilliam P. Jacobs, VRonald J. JanowiakLawrence A. KloiberLawrence F. KruthJay W. LarsonRoberto T. LeonJames O. MalleyDuane K. MillerLarry S. MuirThomas M. MurrayDouglas A. Rees-EvansRafael SabelliThomas A. SabolBenjamin W. SchaferRobert E. Shaw, R. ShermanW. Lee ShoemakerWilliam A. ThorntonRaymond Tide, EmeritusChia-Ming UangAmit H. VarmaDonald W. WhiteRonald D. ZiemianCynthia J. Duncan, SecretaryThe Committee honors former members, David L. McKenzie, Richard C. Kaehler and Keith Landwehr, and advisory member, Fernando Frias, who passed away during this cycle. SPEC 45/5/17 1:45 PMSeismic Provisions for Structural Steel Buildings , July 12, 2016 American Institute of Steel Committee gratefully acknowledges the following task committee (TC 9 Seismic design ) for their development of this O.

10 Malley, ChairmanC. Mark Saunders, Vice ChairmanMichel BruneauGregory G. DeierleinRichard M. DrakeMichael D. EngelhardtTimothy P. FraserSubhash C. GoelJerome F. HajjarRonald O. HamburgerJames R. HarrisPatrick M. HassettJohn D. HooperLawrence KloiberRoberto T. LeonBonnie E. ManleyPatrick S. McManusJohn A. RolfesRafael SabelliThomas A. SabolBahram M. ShahroozRobert E. Shaw, Lee ShoemakerKurt D. SwenssonRobert TremblayJamie WinansLeigh Arber, SecretaryPREFACEAISC_SP SPEC 55/5/17 1:45 PMSeismic Provisions for Structural Steel Buildings , July 12, 2016 American Institute of Steel ConstructionAISC_SP SPEC 65/5/17 1:45 PMSeismic Provisions for Structural Steel Buildings , July 12, 2016 American Institute of Steel OF CONTENTSSYMBOLS.