ANSI AWS D1.8 D1.8M-2016 Structural Welding Code - Seismic Supplement (Third Edition).pdf

1、StructuralWelding CodeSeismicSupplementAWS D1.8/D1.8M:2016An American National StandardAWS D1.8/D1.8M:2016An American National StandardApproved by theAmerican National Standards InstituteAugust 3, 2016Structural Welding CodeSeismic Supplement3rd EditionSupersedes AWS D1.8/D1.8M:2009Prepared by theAm

2、erican Welding Society (AWS) D1 Committee on Structural WeldingUnder the Direction of theAWS Technical Activities CommitteeApproved by theAWS Board of DirectorsAbstractThis code supplements the requirements of AWS D1.1/D1.1M, Structural Welding CodeSteel. This code is intendedto be applicable to wel

3、ded joints in Seismic Force Resisting Systems designed in accordance with the AISC SeismicProvisions. Clauses 17 constitute a body of rules for the regulation of welding in Seismic Force Resisting Systems.There are seven mandatory annexes in this code. A commentary of the code is included with the d

4、ocument.iiAWS D1.8/D1.8M:2016ISBN: 978-0-87171-894-5 2016 by American Welding SocietyAll rights reservedPrinted in the United States of AmericaPhotocopy Rights. No portion of this standard may be reproduced, stored in a retrieval system, or transmitted in anyform, including mechanical, photocopying,

5、 recording, or otherwise, without the prior written permission of the copyrightowner.Authorization to photocopy items for internal, personal, or educational classroom use only or the internal, personal, oreducational classroom use only of specific clients is granted by the American Welding Society p

6、rovided that the appropri-ate fee is paid to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, tel: (978) 750-8400; Internet:.iiiAWS D1.8/D1.8M:2016Statement on the Use of American Welding Society StandardsAll standards (codes, specifications, recommended practices, methods, cla

7、ssifications, and guides) of the AmericanWelding Society (AWS) are voluntary consensus standards that have been developed in accordance with the rules of theAmerican National Standards Institute (ANSI). When AWS American National Standards are either incorporated in, ormade part of, documents that a

8、re included in federal or state laws and regulations, or the regulations of other governmen-tal bodies, their provisions carry the full legal authority of the statute. In such cases, any changes in those AWS stan-dards must be approved by the governmental body having statutory jurisdiction before th

9、ey can become a part of thoselaws and regulations. In all cases, these standards carry the full legal authority of the contract or other document thatinvokes the AWS standards. Where this contractual relationship exists, changes in or deviations from requirements of anAWS standard must be by agreeme

10、nt between the contracting parties.AWS American National Standards are developed through a consensus standards development process that bringstogether volunteers representing varied viewpoints and interests to achieve consensus. While AWS administers the pro-cess and establishes rules to promote fai

11、rness in the development of consensus, it does not independently test, evaluate,or verify the accuracy of any information or the soundness of any judgments contained in its standards.AWS disclaims liability for any injury to persons or to property, or other damages of any nature whatsoever, whethers

12、pecial, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, or relianceon this standard. AWS also makes no guarantee or warranty as to the accuracy or completeness of any information pub-lished herein.In issuing and making this standard available,

13、 AWS is neither undertaking to render professional or other services for oron behalf of any person or entity, nor is AWS undertaking to perform any duty owed by any person or entity to someoneelse. Anyone using these documents should rely on his or her own independent judgment or, as appropriate, se

14、ek theadvice of a competent professional in determining the exercise of reasonable care in any given circumstances. It isassumed that the use of this standard and its provisions is entrusted to appropriately qualified and competent personnel.This standard may be superseded by new editions. This stan

15、dard may also be corrected through publication of amend-ments or errata, or supplemented by publication of addenda. Information on the latest editions of AWS standards includ-ing amendments, errata, and addenda is posted on the AWS web page (www.aws.org). Users should ensure that theyhave the latest

16、 edition, amendments, errata, and addenda.Publication of this standard does not authorize infringement of any patent or trade name. Users of this standard acceptany and all liabilities for infringement of any patent or trade name items. AWS disclaims liability for the infringement ofany patent or pr

17、oduct trade name resulting from the use of this standard. AWS does not monitor, police, or enforce com-pliance with this standard, nor does it have the power to do so.Official interpretations of any of the technical requirements of this standard may only be obtained by sending a request,in writing,

18、to the appropriate technical committee. Such requests should be addressed to the American Welding Society,Attention: Managing Director, Technical Services Division, 8669 NW 36 St, # 130, Miami, FL 33166 (see Annex I).With regard to technical inquiries made concerning AWS standards, oral opinions on

19、AWS standards may be rendered.These opinions are offered solely as a convenience to users of this standard, and they do not constitute professionaladvice. Such opinions represent only the personal opinions of the particular individuals giving them. These individualsdo not speak on behalf of AWS, nor

20、 do these oral opinions constitute official or unofficial opinions or interpretations ofAWS. In addition, oral opinions are informal and should not be used as a substitute for an official interpretation.This standard is subject to revision at any time by the AWS D1 Committee on Structural Welding. I

21、t must be reviewedevery five years, and if not revised, it must be either reaffirmed or withdrawn. Comments (recommendations, additions,or deletions) and any pertinent data that may be of use in improving this standard are requested and should be addressedto AWS Headquarters. Such comments will rece

22、ive careful consideration by the AWS D1 Committee on StructuralWelding and the author of the comments will be informed of the Committees response to the comments. Guests areinvited to attend all meetings of the AWS D1 Committee on Structural Welding to express their comments verbally. Pro-cedures fo

23、r appeal of an adverse decision concerning all such comments are provided in the Rules of Operation of theTechnical Activities Committee. A copy of these Rules can be obtained from the American Welding Society, 8669 NW36 St, # 130, Miami, FL 33166.This page is intentionally blank.ivAWS D1.8/D1.8M:20

24、16vAWS D1.8/D1.8M:2016PersonnelAWS D1 Committee on Structural WeldingA.W. Sindel (Chair) GE Power-Steam Power SystemsT. L. Niemann (Vice Chair) Minnesota Department of TransportationR. D. Medlock (2nd Vice Chair) High Steel Structures, LLCJ. Molin (Secretary) American Welding SocietyF. G. Armao The

25、Lincoln Electric CompanyE. L. Bickford Acute Technological ServicesT. W. Burns AirgasH. H. Campbell, III Pazuzu EngineeringR. D. Campbell BechtelR. B. Corbit CB Yield Strength, Tensile Strength, Elongation, and CVNToughness Requirements.35B.1 Filler Metal Essential VariablesFCAW-S Substrate/Root .39

26、B.2 Filler Metal Essential VariablesFCAW-S Fill39CommentaryC-1.1 Removal of Tabs and Backing.73List of FiguresFigure Page No.4.1 Transition of Butt Joints in Parts of Unequal Thicknesses104.2 Transition of Butt Joints in Parts of Unequal Widths114.3 Doubler to Column Flange Joint Detail.116.1 Reinfo

27、rcing Fillet Weld Requirements256.2 Alternate GeometryBeam Flange Weld Access Hole Detail.266.3 Acceptable Tab Removal Conditions 276.4 Acceptable and Unacceptable Use of End Dams 28A.1 Heat Input Envelope Test Plate36B.1 Intermix Test Plate.40B.2 Interface Scribe Line Location 41B.3 Intermix CVN Te

28、st Specimen Location 41D.1 Test Plate Configuration for Option A 48D.2 Test Plate Configuration for Option B.49D.3 Test Plate Configuration Illustration49D.4 Location of Side Bend Specimens on Test PlatesSupplemental Welder Qualification.50CommentaryC-1.1 Example RBS/Column Strong Axis Connection.74

29、C-1.2 Example Eccentric Brace/Link/Column Connection 75C-1.3 Example WUF-W/Column Strong Axis Connection 76C-4.1 Curved Corner Clip .80C-4.2 Straight Corner Clip 80C-6.1 Measurement of Preheat and Interpass Temperature.93C-6.2 Beam Flange to ColumnFillet Welds at Left-in-Place Steel Backing .93C-6.3

30、 Continuity Plate Copes without Weld Tabs.94This page is intentionally blank.xiiAWS D1.8/D1.8M:2016AWS D1.8/D1.8M:201611.1 ScopeThe provisions of this code supplement the provisions of AWS D1.1/D1.1M, Structural Welding CodeSteel, and shallapply to the design, fabrication, quality control, and quali

31、ty assurance of welded joints designed in accordance with theAISC Seismic Provisions for Structural Steel Buildings. All provisions of AWS D1.1/D1.1M for statically loaded struc-tures shall apply to the designated welds, except as specifically modified herein.1.2 Standard Units of MeasurementThis st

32、andard makes use of both U.S. Customary Units and the International System of Units (SI). The latter are shownwithin brackets ( ) or in appropriate columns in tables and figures. The measurements may not be exact equivalents;therefore, each system must be used independently.1.3 Safety PrecautionsSaf

33、ety and health issues and concerns are beyond the scope of this standard and therefore are not fully addressed herein.Safety and health information is available from the following sources:American Welding Society:(1) ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes(2) AWS Safety and Heal

34、th Fact Sheets(3) Other safety and health information on the AWS websiteMaterial or Equipment Manufacturers:(1) Safety Data Sheets supplied by materials manufacturers(2) Operating Manuals supplied by equipment manufacturersApplicable Regulatory AgenciesWork performed in accordance with this standard

35、 may involve the use of materials that have been deemed hazardous,and may involve operations or equipment that may cause injury or death. This standard does not purport to address allsafety and health risks that may be encountered. The user of this standard should establish an appropriate safety pro

36、gramto address such risks as well as to meet applicable regulatory requirements. ANSI Z49.1 should be considered whendeveloping the safety program.Structural Welding CodeSeismic Supplement1. General Requirements2CLAUSE 1. GENERAL REQUIREMENTS AWS D1.8/D1.8M:20161.4 Responsibilities1.4.1 Engineers Re

37、sponsibilities. In addition to the items listed in AWS D1.1/D1.1M, the Engineer shall provide thefollowing information in the Contract Documents:(1) Connection configuration, material specifications, and part sizes required to provide the needed seismic perfor-mance (see 1.5)(2) Identification of me

38、mbers that comprise the Seismic Force Resisting System (SFRS) and that are subject to theprovisions of this code (see Clause 3)(3) The location of the Protected Zone for members of the SFRS (see Clause 3)(4) Welds designated as “Demand Critical” and subject to specific provisions of this code (see C

39、lause 3)(5) Locations where the removal of backing is required (see 6.13)(6) Locations where fillet welds are required when backing is permitted to remain (see 6.15)(7) Locations where the removal of weld tabs is required (see 6.16.3 and 6.16.4)(8) Locations where fillet welds are required to reinfo

40、rce groove welds, or to improve connection geometry (see 6.14)(9) Locations of access holes and the required shape, whether standard AWS D1.1/D1.1M geometry (see 6.11.1.1),standard alternate geometry (see 6.11.1.2), or a special geometry designated by the Engineer (see 6.11.1.3)(10) The Lowest Antic

41、ipated Service Temperature (LAST) of the steel structure for structures that are not normallyenclosed and maintained at a temperature of 50F 10C or higher (see Clause 3 and 6.2.2)(11) Butt joints subject to tension where tapered transitions are required (see 4.2)(12) Those joints or groups of joints

42、 in which a specific assembly order, welding sequence, welding technique, orother special precautions are required (see AWS D1.1/D1.1M subclauses 2.3.3 and 5.20)(13) Quality Assurance Plan (QAP) for the project (see Clause 3 and 7.1)(14) Any additional provisions applicable to the specific project n

43、ot governed by AWS D1.1/D1.1M or this code.1.4.2 Contractors Responsibilities. When this code or the Quality Assurance Plan (QAP) requires the Contractor toretain documentation, the document(s) shall be retained for at least one year after substantial completion of construction.The documents shall b

44、e made available to the Engineer, Inspector, or both when requested. When the QAP requires sub-mittal of document(s), submittals shall be made to the Engineer and copies of submittals shall be retained by the Contractor.1.4.2.1 AWS A5 Specification Certification. Certificates of Conformance for elec

45、trodes, fluxes, and shielding gasesshall satisfy the applicable AWS A5 specification requirements.1.4.2.2 Certification of Heat Input Envelope Testing. Certifications that filler metals used to make Demand Criti-cal welds meet the Heat Input Envelope Testing requirements of 6.2.1 and Annex A shall b

46、e provided by the filler metalmanufacturer. Should the filler metal manufacturer not supply such certifications, the Contractor shall have the neces-sary testing performed and provide the test reports.1.4.2.3 Product Data Sheets. For GMAW performed with composite (cored) electrodes and for all FCAW

47、andSMAW electrodes, the filler metal manufacturers data sheets or catalog data supplied with Welding Procedure Specifi-cations (WPSs) shall show the recommended or typical welding parameter combinations. The manufacturers recom-mendations for storage, exposure, and baking (if applicable) shall also

48、be provided.1.4.2.4 Diffusible Hydrogen Content. The Contractor shall retain documentation that the filler metals comply withthe hydrogen requirements of 6.1.3, as applicable.1.4.2.5 Extended Exposure Capability of FCAW Filler Metals. When limits of filler metal exposure are extendedin accordance wi

49、th 6.4.3, documentation of testing in accordance with Annex E shall be retained by the Contractor.1.4.2.6 Welding Procedure Specifications (WPSs). The Contractor shall be responsible for all WPSs.AWS D1.8/D1.8M:2016 CLAUSE 1. GENERAL REQUIREMENTS31.4.2.7 Supplemental Welder Qualification Testing Documentation. The Contractor shall retain documentationthat welders performing Demand Critical complete joint penetration groove welding of beam bottom flange to columnT-joints have passed the Supplemental Welder Qualification for Restricted Access Welding test described in Anne