1、ANSI/AISC 303-16 An American National StandardCode of Standard Practice for Steel Buildings and BridgesJune 15, 2016Supersedes the Code of Standard Practice for Steel Buildings and Bridges dated March 14, 2010 and all previous versionsApproved by the Committee on the Code of Standard PracticeAMERICA
2、N INSTITUTE OF STEEL CONSTRUCTION130 East Randolph Street, Suite 2000, Chicago, Illinois 60601 www.aisc.org16.3-iiCode of Standard Practice for Steel Buildings and Bridges, June 15, 2016AMERICAN INSTITUTE OF STEEL CONSTRUCTIONAISC 2016byAmerican Institute of Steel ConstructionAll rights reserved. Th
3、is book or any part thereofmust not be reproduced in any form without thewritten permission of the publisher.The AISC logo is a registered trademark of AISC.The information presented in this publication has been prepared by a balanced committeefollowing American National Standards Institute (ANSI) c
4、onsensus procedures and recog-nized principles of design, construction and contract interpretation. This document isintended as a statement of custom and usage in structural steel construction. Competentdesign, construction and legal advice should be sought when applying the provisions of thisdocume
5、nt to a specific construction project or contract document. The publication of thisinformation is not a representation or warranty on the part of the American Institute of SteelConstruction, its officers, agents, employees or committee members, or of any other personnamed herein. All representations
6、 or warranties, express or implied, other than as statedabove, are specifically disclaimed. Anyone making use of the information presented in thispublication assumes all liability arising from such use.Caution must be exercised when relying upon standards and guidelines developed by otherbodies and
7、incorporated by reference herein, since such material may be modified oramended from time to time subsequent to the publication of this edition. The AmericanInstitute of Steel Construction bears no responsibility for such material other than to refer toit and incorporate it by reference at the time
8、of the initial publication of this edition.Printed in the United States of America15 AISC_PART 16_COSP_15th Ed._2016 2016-08-16 1:39 PM Page ii (Black plate)16.3-iiiCode of Standard Practice for Steel Buildings and Bridges, June 15, 2016AMERICAN INSTITUTE OF STEEL CONSTRUCTIONPREFACE(This Preface is
9、 not part of ANSI/AISC 303-16, but is included for informational purposesonly.)As in any industry, trade practices have developed among those that are involved in thedesign, purchase, fabrication and erection of structural steel. This Code provides a usefulframework for a common understanding of the
10、 acceptable standards when contracting forstructural steel. As such, it is useful for owners, architects, engineers, general contractors,construction managers, fabricators, steel detailers, erectors and others associated with con-struction in structural steel. Unless specific provisions to the contr
11、ary are contained in thecontract documents, the existing trade practices contained herein are considered to be thestandard custom and usage of the industry and are thereby incorporated into the relation-ships between the parties to a contract.It is important to note the differences in design require
12、ments between buildings andbridges. ANSI/AISC 360 and 341 establish the design requirements for buildings and building-like structures, and this Code sets complementary commercial and technical requirements.For highway bridges, the governing design requirements are established by AASHTO andimplement
13、ed by the contracting agency; the commercial provisions of the Code are appli-cable, but technical provisions, such as tolerances, are not addressed.The Symbols and Glossary are an integral part of this Code. In many sections of thisCode, a nonmandatory Commentary has been prepared to provide backgr
14、ound and furtherexplanation for the corresponding Code provisions. The user is encouraged to consult it.This Code is writtenand intended to be utilized in practiceas a unified document.Contract documents may supercede individual provisions of the Code as provided in Section1.1, except when doing so
15、would violate a requirement of the applicable building code.Since the first edition of this Code was published in 1924, AISC has continuously sur-veyed the structural steel design community and construction industry to determine standardtrade practices. Since then, this Code has been periodically up
16、dated to reflect new andchanging technology and industry practices.The 2000 edition was the fifth complete revision of this Code since it was first published.Like the 2005 and 2010 editions, the 2016 edition is not a complete revision but does addimportant changes and updates. It is the result of th
17、e deliberations of a fair and balancedCommittee, the membership of which included structural engineers, architects, a code offi-cial, a general contractor, fabricators, a steel detailer, erectors, inspectors and an attorney.The following changes have been made in this revision:This Code is formally
18、accredited by ANSI as an American National Standard.The language throughout the entire Code has been generalized to address contracts thatutilize drawings, models, or drawings and models in combination, and Appendix A, whichpreviously addressed models separately, has been eliminated.The Commentary i
19、n Section 1.1 has been updated to acknowledge that some portions ofANSI/AISC 303 are incorporated into the International Building Code through referenceto those provisions in ANSI/AISC 360 and 341.The list of dates of referenced documents in Section 1.2 has been editorially updated.A new Section 1.4
20、 has been added to address responsibility for identifying contract docu -ments; subsequent sections have been renumbered.15 AISC_PART 16_COSP_15th Ed._2016 2016-08-16 1:39 PM Page iii (Black plate)16.3-iv PREFACECode of Standard Practice for Steel Buildings and Bridges, June 15, 2016AMERICAN INSTITU
21、TE OF STEEL CONSTRUCTIONSection 1.10 has increased emphasis that the absence of a tolerance in this Code does notmean that tolerance is zero.Section 1.11 has been added to address marking requirements for protected zones inframes designed to meet the requirements of ANSI/AISC 341.A reference has bee
22、n added in the Commentary to Section 2.2 to AISC Design Guide 27for stainless steel.In Section 3.1, two items are added to the list of required information: preset requirementsfor free ends of cantilevered members and the drawing information required inANSI/AISC 341.Sections 3.1.1 and 3.1.2 have bee
23、n editorially switched in order. The resulting Section3.1.2 (formerly Section 3.1.1) also has been improved to better address what is requiredfor bidding when the owners designated representative for design delegates the determi-nation and design of member reinforcement at connections to the license
24、d engineer inresponsible charge of the connection design.Section 3.2 has been updated to address revisions, if they are necessary, when referencedcontract documents are not available at the time of design, bidding, detailing or fabrication.Section 3.3 has added emphasis that the fabricator need not
25、discover design discrepancies.Sections 3.7 and 4.2.2 have been added to address intellectual property rights of theowners designated representative for design and the fabricator, respectively.Section 4.4 has been clarified to better reflect the role of the connection design criteriarequired in Secti
26、on 3.1.1 when connection design work is delegated.Commentary has been added to Section 4.5 to address potential pitfalls when fabricationand erection documents are not furnished by the fabricator.In Section 6.1.1, the listed shop-standard material grades have changed for HP-shapes andHSS.In Section
27、6.4.2, the tolerance for curved members has been improved.In Section 7.5.1, tolerances for anchor-rod placement have been revised for consistencywith the hole sizes provided the AISC Steel Construction Manual and the tolerances givenin ACI 117.In Section 7.8.3, the number of extra bolts required to
28、be supplied has been increased toaccount for bolt loss and pre-installation verification testing requirements; also, backinghas been clarified as steel backing.In Section 7.8.4, non-steel backing is now addressed.In Section 7.13, the term “building line” has been changed to “building exterior.”Comme
29、ntary has been added in Section 7.13.1.2(e) to coordinate with the cantileveredmember preset information added in Section 3.1.Section 9.1.5 has been added to address allowances, when used.Section 10 has been significantly revised with multiple categories for AESS and differenttreatments required for
30、 each.The document has been editorially revised for consistency with current terms and otherrelated documents. 15 AISC_PART 16_COSP_15th Ed._2016 2016-08-16 1:39 PM Page iv (Black plate)PREFACE 16.3-vCode of Standard Practice for Steel Buildings and Bridges, June 15, 2016AMERICAN INSTITUTE OF STEEL
31、CONSTRUCTIONThe Committee thanks Jeffrey Dave, Douglas Fitzpatrick, Angela Stephens and LawrenceKruth for their contributions to integrating treatment of model-based contracts throughoutthis Code; Walter Koppelaar, Terri Boake and Jack Petersen for their contributions to theupdate of Section 10; and
32、, George Wendt, Charles Wood, John Rogers and Brian Smith fortheir contributions to the improvement of tolerances for curved members.The Committee thanks Michael J. Tylk, Donald G. Moore and Paul M. Brosnahan fortheir contributions as members of the Committee for part of this cycle, and honorsCommit
33、tee member Keith G. Landwehr, who passed away during this cycle.By the AISC Committee on the Code of Standard Practice,Babette C. Freund, Chair Viji KuruvillaWilliam A. Andrews, Vice Chair James L. LarsonJon D. Andrews H. Scott MetzgerScott F. Armbrust James A. MinkkinenBarry L. Barger, Emeritus Dav
34、id B. RattermanWilliam R. Davidson David I. RubyTheodore L. Droessler James A. StoriDonald T. Engler Thomas S. Tarpy, Jr.Lawrence G. Griffis James G. ThompsonSamuel G. Haldiman Steven F. WeissTimothy J. Hanenburg Michael A. WestD. Kirk Harman Charles J. Carter, SecretaryLawrence A. Kloiber Timothy J
35、. Bradshaw, Asst. Secretary15 AISC_PART 16_COSP_15th Ed._2016 2016-08-16 1:39 PM Page v (Black plate)TABLE OF CONTENTSGLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ixSECTION 1. GENERAL PROVISIONS . . . . . . . . . . .
36、 . . . . . . . . . . . . . . . . . . . . . . . . . 11.1. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2. Dates of Referenced Specifications, Codes and Standards . . . . . . . . . . . . . . . . . . . 11.3. Units . .
37、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.4. Responsibility for Identifying Contract Documents . . . . . . . . . . . . . . . . . . . . . . . . . .3 1.5. Design Criteria . . . . . . . . . . . . . . . . . . . . . . . . . .
38、 . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.6. Responsibility for Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.7. Patents and Copyrights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
39、41.8. Existing Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.9. Means, Methods and Safety of Erection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.10. Tolerances . . . . . . . . . . . . . . . . . . . . . .
40、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.11. Marking of Protected Zones in High-Seismic Applications . . . . . . . . . . . . . . . . . . . 5SECTION 2. CLASSIFICATION OF MATERIALS . . . . . . . . . . . . . . . . . . . . . . . . . . 62.1. Definition of Structural Steel
41、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.2. Other Steel, Iron or Metal Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7SECTION 3. DESIGN DOCUMENTS AND SPECIFICATIONS . . . . . . . . . . . . . . . . 93.1. Structural
42、Design Documents and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 93.2. Architectural, Electrical and Mechanical Design Documents and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.3. Discrepancies . . . . . . . . . . . . .
43、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.4. Legibility of the Design Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.5. Revisions to the Design Documents and Specifications . . . . . . . . . . . . . . . . . . . . . 173
44、.6. Fast-Track Project Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183.7. Intellectual Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18SECTION 4. APPROVAL DOCUMENTS . . . . . . . . . . . . . .
45、 . . . . . . . . . . . . . . . . . . . 194.1. Owner Responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194.2. Fabricator Responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.3. Use of Digi
46、tal Files or Copies of the Design Documents . . . . . . . . . . . . . . . . . . . 214.4. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .234.5. Fabrication and/or Erection Documents Not Furnished by the Fabricator . . . . .
47、. . 254.6. The RFI Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254.7. Erection Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26SECTION 5. MATERIALS . . . . . . . . . . . . .
48、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.1. Mill Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.2. Stock Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
49、 . . . . . . . . . . 2816.3-viCode of Standard Practice for Steel Buildings and Bridges, June 15, 2016AMERICAN INSTITUTE OF STEEL CONSTRUCTION15 AISC_PART 16_COSP_15th Ed._2016 2016-08-16 1:39 PM Page vi (Black plate)TABLE OF CONTENTS 16.3-viiCode of Standard Practice for Steel Buildings and Bridges, June 15, 2016AMERICAN INSTITUTE OF STEEL CONSTRUCTIONSECTION 6. SHOP FABRICATION AND DELIVERY . . . . . . . . . . . . . . . . . . . . . . . 306.1. Identification of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306.2. Preparation of Mat
