1、ANSI/AISC 341-10An American National StandardSeismic Provisions for Structural Steel BuildingsJune 22, 2010 Supersedes the Seismic Provisions for Structural Steel Buildingsdated March 9, 2005,Supplement No. 1 dated November 16, 2005,and all previous versionsApproved by the AISC Committee on Specific
2、ationsAMERICAN INSTITUTE OF STEEL CONSTRUCTIONOne East Wacker Drive, Suite 700Chicago, Illinois 60601-1802Final _SeismicProvisions Spec.:Sept. 6, 2011 9/6/11 1:28 PM Page iSeismic Provisions for Structural Steel Buildings, June 22, 2010AMERICAN INSTITUTE OF STEEL CONSTRUCTIONCopyright 2010byAmerican
3、 Institute of Steel ConstructionAll rights reserved. This book or any part thereof must not be reproduced in any form without the written permission of the publisher.The AISC logo is a registered trademark of AISC.The information presented in this publication has been prepared in accordance with rec
4、og-nized engineering principles and is for general information only. While it is believed to beaccurate, this information should not be used or relied upon for any specific applicationwithout competent professional examination and verification of its accuracy, suitability andapplicability by a licen
5、sed professional engineer, designer or architect. The publication ofthe material contained herein is not intended as a representation or warranty on the part ofthe American Institute of Steel Construction or of any other person named herein, that thisinformation is suitable for any general or partic
6、ular use or of freedom from infringement ofany patent or patents. Anyone making use of this information assumes all liability arisingfrom such use.Caution must be exercised when relying upon other specifications and codes developed byother bodies and incorporated by reference herein since such mater
7、ial may be modified oramended from time to time subsequent to the printing of this edition. The Institute bears noresponsibility for such material other than to refer to it and incorporate it by reference at thetime of the initial publication of this edition.Printed in the United States of AmericaFi
8、nal _SeismicProvisions Spec.:Sept. 6, 2011 9/6/11 1:28 PM Page ii9.1iiiSeismic Provisions for Structural Steel Buildings, June 22, 2010AMERICAN INSTITUTE OF STEEL CONSTRUCTIONPREFACEThis Preface is not a part of ANSI/AISC 341-10, Seismic Provisions for Structural SteelBuildings, but is included for
9、informational purposes only.The AISC Specification for Structural Steel Buildings (ANSI/AISC 360-10) is intendedto cover common design criteria. Accordingly, it is not feasible for it to also cover all of thespecial and unique problems encountered within the full range of structural design practice.
10、This document, the AISC Seismic Provisions for Structural Steel Buildings (ANSI/AISC341-10) (hereafter referred to as the Provisions) is a separate consensus standard thataddresses one such topic: the design and construction of structural steel and compositestructural steel/reinforced concrete build
11、ing systems for high-seismic applications.A list of Symbols and a Glossary are part of this document. Terms that appear in theGlossary are generally italicized where they first appear in a sub-section, throughout theseProvisions. A nonmandatory Commentary with background information is also provided
12、.Nonmandatory user notes are interspersed throughout these Provisions to provide guidanceon the application of the document.This edition of the AISC Seismic Provisions for Structural Steel Buildings was developedin concert with both ANSI/AISC 360-10 and ASCE/SEI 7-10, Minimum Design Loads forBuildin
13、gs and Other Structures. This will allow these Provisions to be incorporated by ref-erence into the 2012 IBC, which will use ASCE/SEI 7-10 as its basis of design for loadings. Some of the most significant modifications to this edition of these Provisions are relatedto format. The organization of the
14、 chapters has been changed to be more consistent with thatof ANSI/AISC 360-10. In the 2005 edition, these Provisions separated the requirements forstructural steel buildings from that of composite structural steel/reinforced concrete con-struction into two parts. In this edition of the Provisions, P
15、art I and Part II have beencombined into one document. In addition, each structural system is presented in a unifiedmanner with parallel headings that will ease comparison of requirements between systemsand application of the document. A Cross Reference listing is provided comparing the 2010to the 2
16、005 version of the Provisions.A number of significant technical modifications have also been made since the 2005 edi-tion of these Provisions, including the following:Clarifying the intended combination of this document with the provisions of ACI 318for composite construction systemsEstablishing a n
17、ew chapter on analysis requirements that applies to all systemsAdding terms to clearly identify the level of ductile response capable of various mem-bers in the seismic force resisting system (SFRS)Adding language to clarify the design of members and connections that are not part ofthe SFRS for defo
18、rmation compatibilityIncluding a discussion of the “Basis of Design” that explains the intended seismicresponse characteristics of each structural systemImproving the consistency, clarity and completeness of how each structural systemtreats all aspects of the seismic design and detailingAdding requi
19、rements for two cantilever column systems to be consistent with othersystems in these Provisions and the seismic design parameters ASCE/SEI 7-10Final _SeismicProvisions Spec.:Sept. 6, 2011 9/6/11 1:28 PM Page iii9.1iv PREFACESeismic Provisions for Structural Steel Buildings, June 22, 2010AMERICAN IN
20、STITUTE OF STEEL CONSTRUCTIONAdding analysis requirements to address the inelastic response of special concentri-cally braced framesModifying the connection requirements for braced frame systems to ensure that theexpected deformation demands can be accommodatedAdding requirements for the use of box-
21、shaped link beams in eccentrically bracedframesAdding requirements for the use of perforated plates in special plate shear wallsSignificantly increasing the detail for the design requirements of composite systems,such that they are consistent with structural steel systemsIncorporating AWS D1.8/D1.8M
22、 by reference for welding related issuesThe AISC Committee on Specifications, Task Committee 9Seismic Design is respon-sible for the ongoing development of these Provisions. The AISC Committee onSpecifications gives final approval of the document through an ANSI-accredited ballotingprocess, and has
23、enhanced these Provisions through careful scrutiny, discussion and sug-gestions for improvement. The contributions of these two groups, comprising well morethan 80 structural engineers with experience from throughout the structural steel industry, isgratefully acknowledged. AISC further acknowledges
24、 the significant contributions of sev-eral groups to the completion of this document: the Building Seismic Safety Council(BSSC), the Federal Emergency Management Agency (FEMA), the National ScienceFoundation (NSF), and the Structural Engineers Association of California (SEAOC).The reader is cautione
25、d that professional judgment must be exercised when data or rec-ommendations in these provisions are applied, as described more fully in the disclaimernotice preceding the Preface.This specification was approved by the AISC Committee on Specifications: James M. Fisher, Chairman Mark V. HollandEdward
26、 E. Garvin, Vice Chairman Ronald J. JanowiakHansraj G. Ashar Richard C. KaehlerWilliam F. Baker Lawrence A. KloiberJohn M. Barsom Lawrence F. KruthWilliam D. Bast Jay W. LarsonReidar Bjorhovde Roberto T. LeonRoger L. Brockenbrough James O. MalleyGregory G. Deierlein Sanjeev R. MalushteBruce R. Ellin
27、gwood David L. McKenzieMichael D. Engelhardt Duane K. MillerShu-Jin Fang Larry S. MuirSteven J. Fenves Thomas M. MurrayJohn W. Fisher R. Shankar NairTheodore V. Galambos Jack E. PetersenLouis F. Geschwindner Douglas A. Rees-EvansLawrence G. Griffis Thomas A. SabolJohn L. Gross Robert E. Shaw, Jr.Jer
28、ome F. Hajjar Donald R. ShermanPatrick M. Hassett W. Lee ShoemakerTony C. Hazel William A. ThorntonFinal _SeismicProvisions Spec.:Sept. 6, 2011 9/6/11 1:28 PM Page ivPREFACE 9.1vSeismic Provisions for Structural Steel Buildings, June 22, 2010AMERICAN INSTITUTE OF STEEL CONSTRUCTIONRaymond H.R. Tide
29、Donald W. WhiteChia-Ming Uang Cynthia J. Duncan, SecretaryThe Committee gratefully acknowledges the following task committee (TC 9SeismicDesign) for their development of this document. James O. Malley, Chairman Roberto T. LeonC. Mark Saunders, Vice Chairman Sanjeev R. MalushteMichel Bruneau Bonnie E
30、. ManleyGregory G. Deierlein Clarkson W. PinkhamRichard M. Drake John A. RolfesMichael D. Engelhardt Rafael SabelliTimothy P. Fraser Thomas A. SabolSubhash C. Goel Bahram M. ShahroozJerome F. Hajjar Robert E. Shaw, Jr.Ronald O. Hamburger W. Lee ShoemakerJames R. Harris Kurt D. SwenssonPatrick M. Has
31、sett Robert TremblayJohn D. Hooper Jamie WinansBrian T. Knight Cynthia J. Duncan, SecretaryKeith Landwehr Leigh Arber, SecretaryFinal _SeismicProvisions Spec.:Sept. 6, 2011 9/6/11 1:28 PM Page v9.1viSeismic Provisions for Structural Steel Buildings, June 22, 2010AMERICAN INSTITUTE OF STEEL CONSTRUCT
32、IONFinal _SeismicProvisions Spec.:Sept. 6, 2011 9/6/11 1:28 PM Page vi9.1viiSeismic Provisions for Structural Steel Buildings, June 22, 2010AMERICAN INSTITUTE OF STEEL CONSTRUCTIONTABLE OF CONTENTSCROSS REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33、 . . 9.1xxixSYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1xxxiiiGLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1xxxixACRONYMS . . . . . . . . . . . . . . . .
34、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1xlvPROVISIONSA. GENERAL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.11A1. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35、 . . . . . . . 9.11A2. Referenced Specifications, Codes and Standards . . . . . . . . . . . . . . . . . . . . 9.12A3. Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.121. Material Specifications . . . . . . . . . . . . . . . . . . . .
36、 . . . . . . . . . . . . . . . . 9.122. Expected Material Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.133. Heavy Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.154. Consumables for Welding . . . . . . . . . . . . . . .
37、. . . . . . . . . . . . . . . . . . . 9.154a. Seismic Force Resisting System Welds . . . . . . . . . . . . . . . . . . . . . . . 9.154b. Demand Critical Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.155. Concrete and Steel Reinforcement . . . . . . . . . . . . . . .
38、 . . . . . . . . . . . . 9.16A4. Structural Design Drawings and Specifications . . . . . . . . . . . . . . . . . . . . . 9.161. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.162. Steel Construction . . . . . . . . . . . . . . . . . . . . .
39、. . . . . . . . . . . . . . . . . . . 9.163. Composite Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.17B. GENERAL DESIGN REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.18B1. General Seismic Design Requirements . . . . . . . . . . . . .
40、 . . . . . . . . . . . . . . 9.18B2. Loads and Load Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.18B3. Design Basis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.191. Required Strength . . . . . . . . . . . . .
41、 . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.192. Available Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.19B4. System Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.19C. ANALYSIS . . . .
42、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.110C1. General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.110C2. Additional Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
43、. . . . . . . . 9.110C3. Nonlinear Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.110D. GENERAL MEMBER AND CONNECTION DESIGNREQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.111D1. Member Require
44、ments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1111. Classification of Sections for Ductility . . . . . . . . . . . . . . . . . . . . . . . 9.1111a. Section Requirements for Ductile Members . . . . . . . . . . . . . . . . . . . 9.111Final _SeismicProvisions Spe
45、c.:Sept. 6, 2011 9/6/11 1:28 PM Page vii9.1viii TABLE OF CONTENTSSeismic Provisions for Structural Steel Buildings, June 22, 2010AMERICAN INSTITUTE OF STEEL CONSTRUCTION1b. Width-to-Thickness Limitations of Steel and Composite Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
46、. . . . . . 9.1112. Stability Bracing of Beams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1142a. Moderately Ductile Members . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1142b. Highly Ductile Members . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47、 . . . 9.1152c. Special Bracing at Plastic Hinge Locations . . . . . . . . . . . . . . . . . . . 9.1153. Protected Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1164. Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
48、 . . . . . 9.1164a. Required Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1164b. Encased Composite Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1174c. Filled Composite Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . .
49、 . . . . 9.1195. Composite Slab Diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1195a. Load Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1195b. Nominal Shear Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.119D2. Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1201. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1
