AS NZS 1554 7-2006 Structural steel welding - Welding of sheet steel structures《结构钢焊接 第7部分 薄板钢结构件的焊接》.pdf

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1、 AS/NZS 1554.7:2006 Australian/New Zealand StandardStructural steel welding Part 7: Welding of sheet steel structures AS/NZS 1554.7:2006Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 Jun 2009AS/NZS 1554.7:2006 This Joint Australian/New Zealand Standard was prepared by Joint Tech

2、nical Committee WD-003, Welding of Structures. It was approved on behalf of the Council of Standards Australia on 7 September 2006 and on behalf of the Council of Standards New Zealand on 15 September 2006. This Standard was published on 14 December 2006. The following are represented on Committee W

3、D-003: Australian Chamber of Commerce and Industry Australian Industry Group AUSTROADS Bureau of Steel Manufacturers of Australia Electricity Supply Association of Australia Institute of Engineers Australia New Zealand Heavy Engineering Research Association New Zealand Non-destructive Testing Associ

4、ation Steel Reinforcement Institute of Australia University of Sydney Welding Technology Institute of Australia Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed,

5、and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased. Detailed

6、information about joint Australian/New Zealand Standards can be found by visiting the Standards Web Shop at .au or Standards New Zealand web site at www.standards.co.nz and looking up the relevant Standard in the on-line catalogue. Alternatively, both organizations publish an annual printed Catalogu

7、e with full details of all current Standards. For more frequent listings or notification of revisions, amendments and withdrawals, Standards Australia and Standards New Zealand offer a number of update options. For information about these services, users should contact their respective national Stan

8、dards organization. We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Please address your comments to the Chief Executive of either Standards Australia or Standards New Zealand at the a

9、ddress shown on the back cover. This Standard was issued in draft form for comment as DR06202. Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 Jun 2009AS/NZS 1554.7:2006 Australian/New Zealand StandardStructural steel welding Part 7: Welding of sheet steel structures COPYRIGHT St

10、andards Australia/Standards New Zealand All rights are reserved. No part of this work may be reproduced or copied in any form or byany means, electronic or mechanical, including photocopying, without the writtenpermission of the publisher. Jointly published by Standards Australia, GPO Box 476, Sydne

11、y, NSW 2001 and StandardsNew Zealand, Private Bag 2439, Wellington 6020 ISBN 0 7337 7906 9 First published as AS/NZS 1554.7:2006. Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 Jun 2009AS/NZS 1554.7:2006 2 PREFACE This Standard was prepared by the Joint Standards Australia/Stand

12、ards New Zealand Committee WD-003, Welding of Structures. The objective of this Standard is to provide rules for the welding of a wide range of light gauge steel constructions designed in accordance with the requirements of AS/NZS 4600, although this Standard has been specifically prepared for steel

13、 structures, it may be usefully applied to machine frames and other types of steel constructions. Given the historical links between the requirements of AS/NZS 4600, Cold-formed steel structures and the American Welding Societys AWS D1.3, Structural Welding CodeSheet Steel, this Standard takes cogni

14、zance of the requirements and practices associated with AWS D1.3, and the similar requirements contained within AS/NZS 1554.1, Structural steel welding Part 1: Welding of steel structures, for category GP quality welds. The Standard requires that weld preparations, welding consumables and welding pr

15、ocedures be qualified before commencement of welding. Prequalified joint preparations, welding consumables and welding procedures are also given in the Standard. The Standard caters specifically for statically loaded structures and, similarly to AS/NZS 4600, does not consider brittle fracture requir

16、ements. Under circumstances where brittle fracture is considered likely, the user is instead referred to AS/NZS 1554.1. Whilst AS/NZS 4600 now caters for dynamic loading conditions, both AS/NZS 4600 and this Standard also refer the user to the more appropriate requirements of AS/NZS 1554.1 Category

17、SP, or for high levels of dynamic loading (fatigue), to AS/NZS 1554.5, Structural steel welding Part 5: Welding of steel structures subject to high levels of fatigue loading. This will ensure that appropriate levels of supervision and inspection will be applied to the relevant parts of the structure

18、. Statements expressed in mandatory terms in notes to tables and figures are deemed to be requirements of this Standard. The terms normative and informative have been used in this Standard to define the application of the appendix to which they apply. A normative appendix is an integral part of a St

19、andard, whereas an informative appendix is only for information and guidance. Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 Jun 20093 AS/NZS 1554.7:2006 CONTENTS Page SECTION 1 SCOPE AND GENERAL 1.1 SCOPE 5 1.2 APPLICATION . 5 1.3 EXCLUSIONS 6 1.4 INNOVATION 6 1.5 REFERENCED DO

20、CUMENTS 6 1.6 DEFINITIONS 6 1.7 SYMBOLS 7 1.8 BASIC WELDING REQUIREMENTS . 7 1.9 SAFETY 7 SECTION 2 MATERIALS OF CONSTRUCTION 2.1 PARENT MATERIAL 8 2.2 BACKING MATERIAL 8 2.3 WELDING CONSUMABLES. 8 SECTION 3 DETAILS OF WELDED CONNECTIONS 3.1 GENERAL 10 3.2 BUTT WELDS 10 3.3 FILLET WELDS . 13 3.4 COM

21、POUND WELDS 14 3.5 FLARE WELDS 15 3.6 ARC SPOT (PUDDLE) WELDS. 16 3.7 ARC SEAM WELDS 18 3.8 ARC PLUG WELDS . 19 SECTION 4 QUALIFICATION OF PROCEDURES AND PERSONNEL 4.1 QUALIFICATION OF WELDING PROCEDURE . 20 4.2 METHODS FOR QUALIFYING A WELDING PROCEDURE 22 4.3 PREQUALIFIED WELDING PROCEDURES . 22 4

22、.4 PORTABILITY OF QUALIFIED WELDING PROCEDURES 22 4.5 PREQUALIFIED JOINT PREPARATIONS . 23 4.6 QUALIFICATION OF WELDING CONSUMABLES . 30 4.7 QUALIFICATION OF WELDING PROCEDURE BY TESTING 35 4.8 EXTENSION OF QUALIFICATION 37 4.9 COMBINATION OF PROCESSES. 38 4.10 RECORDS OF TESTS 38 4.11 REQUALIFICATI

23、ON OF WELDING PROCEDURES 40 4.12 QUALIFICATION OF WELDING PERSONNEL 42 SECTION 5 WORKMANSHIP 5.1 PREPARATION OF EDGES FOR WELDING. 47 5.2 ASSEMBLY 47 5.3 PREHEATING AND INTER-RUN CONTROL 48 5.4 WELDING UNDER ADVERSE WEATHER CONDITIONS. 55 5.5 TACK WELDS 55 5.6 WELD DEPTH-TO-WIDTH RATIO 55 5.7 CONTRO

24、L OF DISTORTION AND RESIDUAL STRESS 56 5.8 BACKGOUGING AND REPAIR OF DEFECTS IN WELDS 56 Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 Jun 2009AS/NZS 1554.7:2006 4 Page 5.9 TEMPORARY ATTACHMENTS. 57 5.10 ARC STRIKES 57 5.11 CLEANING OF FINISHED WELDS 58 5.12 DRESSING OF BUTT WE

25、LDS 58 SECTION 6 QUALITY OF WELDS 6.1 METHODS OF INSPECTION AND PERMISSIBLE LEVELS OF IMPERFECTIONS 59 6.2 MAGNETIC PARTICLE EXAMINATION 63 6.3 LIQUID PENETRANT EXAMINATION . 63 6.4 WELD DEFECTS 63 6.5 REPORTING. 63 SECTION 7 INSPECTION 7.1 GENERAL 64 7.2 QUALIFICATIONS OF INSPECTORS 64 7.3 VISUAL I

26、NSPECTION OF WORK 64 7.4 NON-DESTRUCTIVE EXAMINATION OTHER THAN VISUAL. 64 APPENDICES A REFERENCED DOCUMENTS 66 B BRITTLE FRACTURE . 69 C TYPICAL FORMS FOR WELDING PROCEDURES 72 D MATTERS FOR RESOLUTION. 75 E WELDED JOINT AND PROCESS IDENTIFICATION . 76 F MIG BRAZING. 83 G BEND AND TORSION TESTS FOR

27、 SHEET STEELS 85 Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 Jun 20095 AS/NZS 1554.7:2006 COPYRIGHT STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Australian/New Zealand Standard Structural steel welding Part 7: Welding of sheet steel structures SECTION 1 SCOPE AND GENERAL 1.1 SCO

28、PE This Standard specifies requirements for the arc welding of steel structures made up of combinations of steel plate, sheet or sections, including pipe, hollow sections and built-up sections (collectively referred to herein as sheet steels) up to 4.8 mm in thickness by the following processes: (a)

29、 Manual metal-arc welding (MMAW). (b) Submerged arc welding (SAW). (c) Gas metal-arc welding (GMAW or MIG), including pulsed mode. (d) Gas tungsten-arc welding (GTAW or TIG). (e) Flux-cored arc welding (FCAW). The Standard is limited to the welding of steel parent material with a specified minimum y

30、ield strength not exceeding 550 MPa. 1.2 APPLICATION The Standard applies to the welding of steelwork in structures complying with AS/NZS 4600. The following limitations apply: (a) For other than fatigue conditions, where welded joints are governed by dynamic loading conditions, all welding shall co

31、mply with AS/NZS 1554.1 category SP. (b) For welded joints subject to fatigue conditions (i.e., weld categories higher than detail category 118 of AS/NZS 4600), welding shall comply with AS/NZS 1554.5. Consistent with AS/NZ 4600, brittle fracture provisions have not been included in this Standard. F

32、or service temperatures colder than 10C (see Appendix B), the brittle fracture provisions of AS/NZS 1554.1 for materials and welding consumables shall apply. In addition to the abovementioned structures, the Standard applies to the welding of steelwork in applications other than structural. Provided

33、 approval has been obtained from the Principal, the Standard may be applied to the welding of sheet steels up to 4.8 mm thickness in structures designed in accordance with AS 4100 and NZS 3404.1, where category GP is specified. The welding of sheet steels thicker than 4.8 mm, shall comply with the r

34、equirements of AS/NZS 1554.1. When stud welding through the flat portion of decking or roofing onto supporting structural members, the weld procedure shall comply with the requirements of AS/NZS 1554.2. Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 Jun 2009AS/NZS 1554.7:2006 6

35、COPYRIGHT 1.3 EXCLUSIONS The Standard does not apply to the welding of structures by the following processes: (a) Oxyacetylene welding (OAW). (b) Friction welding (FW). (c) Thermit welding (TW). (d) Resistance welding (RW). (e) Electroslag (including consumable guide) welding (ESW). (f) Electrogas w

36、elding (EGW). NOTE: Resistance welds in structures complying with AS/NZS 4600 should be made in accordance with AWS C1.1 or AWS C1.3, as appropriate. The Standard does not apply to the welding of pressure vessels and pressure piping. The Standard does not cover the design of welded connections or pe

37、rmissible stresses in welds, nor the production, rectification or repair of castings. 1.4 INNOVATION Any alternative materials, welding processes, consumables, methods of construction or testing that give equivalent results to those specified, but do not comply with the specific requirements of this

38、 Standard or are not mentioned in it, are not necessarily prohibited. The Joint Standards Australia/Standards New Zealand Committee on welding of structures can act in an advisory capacity concerning equivalent suitability, but specific approval remains the prerogative of the inspecting authority. 1

39、.5 REFERENCED DOCUMENTS The documents referred to in this Standard are listed in Appendix A. 1.6 DEFINITIONS For the purpose of this Standard, the definitions given in AS 2812 and those below apply. 1.6.1 Fabricator The person or organization responsible for the welding of the structure during fabri

40、cation or erection. 1.6.2 Inspecting authority The authority having statutory powers to control the design and erection of buildings or structures. NOTE: Where the structure is not subject to statutory jurisdiction, the principal is deemed to be the inspecting authority. 1.6.3 Inspector A person emp

41、loyed by or acceptable to the inspecting authority or principal for the purpose of inspecting welding in accordance with this Standard. 1.6.4 May Indicates the existence of an option. Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 Jun 20097 AS/NZS 1554.7:2006 COPYRIGHT 1.6.5 Pri

42、ncipal The purchaser or owner of the structure being fabricated or erected, or a nominated representative. NOTE: The nominated representative should be suitably qualified to deal with the technical issues of this Standard. 1.6.6 Shall Indicates that a statement is mandatory. 1.6.7 Should Indicates a

43、 recommendation. 1.7 SYMBOLS For the purpose of this Standard the symbols given in AS 1101.3 apply. 1.8 BASIC WELDING REQUIREMENTS The basis of this Standard is that a weld shall (a) be made in accordance with a qualified welding procedure; (b) be carried out by a welder suitably qualified to carry

44、out such a procedure; (c) be carried out under the supervision of a welding supervisor who is employed by or contracted to the fabricator; and (d) comply with the appropriate requirements of this Standard. For some conditions prescribed herein, the welding procedure is deemed to be prequalified and

45、may not require full qualification testing (see Clause 4.3 and Table 4.7.1). NOTE: Fabricators may find it useful to refer to AS/NZS ISO 3834 and its parts where fabrication activities require the approval of the principal or the inspecting authority, or where the fabrication of large, complex or cr

46、itical structures is being undertaken. 1.9 SAFETY 1.9.1 Safety equipment and procedures Welding shall be carried out in accordance with the relevant requirements of AS 1470, AS 1674.1, AS 1674.2, AS 2865, AS/NZS 1336, AS/NZS 1337 and AS/NZS 1338.1. 1.9.2 Welding equipment Welding plant and equipment

47、 shall comply with the relevant sections of appropriate regulations, and AS 2799, AS/NZS 1995, and AS 60974.1. 1.9.3 Other hazards The fabricator shall identify and manage any other risks and hazards from welding that are not covered by Clauses 1.9.1 and 1.9.2. In particular, due consideration shall

48、 be given to the control and dispersal of emitted fumes, especially when welding through paints, primers and other surface coatings. NOTES: 1 Guidance on the management of risk is given in AS/NZS 4360. 2 Further guidance on safety precautions is given in WTIA Technical Notes 7 and 22. Accessed by IS

49、ONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 Jun 2009AS/NZS 1554.7:2006 8 COPYRIGHT SECTION 2 MATERIALS OF CONSTRUCTION 2.1 PARENT MATERIAL The parent material to be welded shall (a) be of a grade with a specified minimum yield strength not exceeding 550 MPa; and (b) comply with AS 1163, AS 1397, AS 1450, AS 1548, AS/NZS 1594, AS/NZS 1595, AS/NZS 3678, AS/NZS 3679.1, AS/NZS 3679.2, and NZS 3415, as appropriate. NOTE: Any steel type from any Standard above may be welded to any other steel type from any Standard above, provided th