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1、 Reference number ISO 17660-1:2006(E) ISO 2006 INTERNATIONAL STANDARD ISO 17660-1 First edition 2006-09-01 Welding Welding of reinforcing steel Part 1: Load-bearing welded joints Soudage Soudage des aciers darmatures Partie 1: Assemblages transmettant des efforts ISO 17660-1:2006(E) PDF disclaimer T
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6、ester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reserved -,-,- ISO 17660-1:2006(E) ISO 2006 All rights reserved iii Contents Page Foreword iv Introductio
7、n v 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 2 4 Symbols and abbreviated terms . 3 5 Welding processes. 4 6 Load-bearing welded joints . 4 7 Materials 14 8 Quality requirements 14 9 Welding personnel 15 10 Welding procedure specification (WPS). 16 11 Welding procedures . 16 12
8、Production weld test. 18 13 Execution and inspection of production welding of reinforcing steel 19 14 Examination and testing of test specimens. 21 15 Production log. 24 Annex A (informative) Welding procedure specification (WPS) for welding processes 111, 114, 135 and 136 25 Annex B (informative) T
9、echnical knowledge of welding coordinator for welding reinforcing steel . 27 Annex C (informative) Test specimens 28 Annex D (informative) Assessment of the manufacturer performing welding 32 Annex E (informative) Evaluation of testing of welded joints 33 Annex F (informative) Example for production
10、 log. 34 Annex G (informative) Classification of shear strength of load-bearing cross joints. 35 Annex H (informative) Examples of diameter combinations for welding cross joints using welding processes 21 and 23. 36 Bibliography. 37 ISO 17660-1:2006(E) iv ISO 2006 All rights reserved Foreword ISO (t
11、he International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical commit
12、tee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotech
13、nical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member
14、 bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying
15、 any or all such patent rights. ISO 17660-1 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 121, Welding, in collaboration with Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 10, Unification of requirements in the field of met
16、al welding, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). ISO 17660 consists of the following parts, under the general title Welding Welding of reinforcing steel: Part 1: Load-bearing welded joints Part 2: Non load-bearing welded joints Requests fo
17、r official interpretations of any aspect of this part of ISO 17660 should be directed to the Secretariat of ISO/TC 44/SC 10 via your national standards body. A complete listing of these bodies can be found at www.iso.org. -,-,- ISO 17660-1:2006(E) ISO 2006 All rights reserved v Introduction Reinforc
18、ing steel bars are produced by a number of process routes and usually have a ribbed profile. Taking these issues into account, it is apparent that both the welder and the welding coordinator require a specific level of skill and job knowledge and that special procedures for quality assurance need to
19、 be adopted. -,-,- -,-,- INTERNATIONAL STANDARD ISO 17660-1:2006(E) ISO 2006 All rights reserved 1 Welding Welding of reinforcing steel Part 1: Load-bearing welded joints 1 Scope This part of ISO 17660 is applicable to the welding of weldable reinforcing steel and stainless reinforcing steel of load
20、-bearing joints, in workshops or on site. It specifies requirements for materials, design and execution of welded joints, welding personnel, quality requirements, examination and testing. This part of ISO 17660 also covers welded joints between reinforcing steel bars and other steel components, such
21、 as connection devices and insert anchors, including prefabricated assemblies. Non load-bearing joints are covered by ISO 17660-2. This part of ISO 17660 is not applicable to factory production of welding fabric and lattice girders using multiple spot welding machines or multiple projection welding
22、machines. The requirements of this part of ISO 17660 are only applicable to static loaded structures. NOTE For fatigue-loaded structures, depending on type of joint and welding process, it is recommended that an appropriate reduction be taken into account on the fatigue strength of the reinforcing s
23、teel. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3834-3 Quality r
24、equirements for fusion welding of metallic materials Part 3: Standard quality requirements ISO 5817, Welding Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) Quality levels for imperfections ISO 9606-1, Approval testing of welders Fusion welding Part 1: Steels
25、 ISO 14731:1), Welding coordination Tasks and responsibilities ISO 147322), Welding personnel Approval testing of welding operators for fusion welding and of resistance weld setters for fully mechanized and automatic welding of metallic materials ISO 15609-1, Specification and qualification of weldi
26、ng procedures for metallic materials Welding procedure specification Part 1: Arc welding ISO 15609-2, Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 2: Gas welding 1) To be published (revision of ISO 14731:1997, EN 719:1994). 2) Equi
27、valent to EN 1418. -,-,- ISO 17660-1:2006(E) 2 ISO 2006 All rights reserved ISO 15609-5, Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 5: Resistance welding ISO 15614-1, Specification and qualification of welding procedures for meta
28、llic materials Welding procedure test Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys ISO 15614-12, Specification and qualification of welding procedures for metallic materials Welding procedure test Part 12: Spot, seam and projection welding ISO 15614-13, Specifica
29、tion and qualification of welding procedures for metallic materials Welding procedure test Part 13: Resistance butt and flash welding ISO 15620, Welding Friction welding of metallic materials ISO 15630-1, Steel for the reinforcement and prestressing of concrete Test methods Part 1: Reinforcing bars,
30、 wire rod and wire ISO 15630-2, Steel for the reinforcement and prestressing of concrete Test methods Part 2: Welded fabric ISO 16020, Steel for the reinforcement and prestressing of concrete Vocabulary EN 10079, Definition of steel products EN 10080, Steel for the reinforcement of concrete Weldable
31、 reinforcing steel General EN 10164, Steel products with improved deformation properties perpendicular to the surface of the product Technical delivery conditions 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10079, EN 10080 and ISO 16020 and the fo
32、llowing apply. 3.1 load-bearing welded joint welded joint used for transmission of specified loads between reinforcing steel bars or between reinforcing steel bars and other steel products 3.2 non load-bearing welded joint welded joint whose strength is not taken into account in the design of the re
33、inforced concrete structure NOTE The purpose of a non load-bearing welded joint is usually only to keep the reinforcing components in their correct places during fabrication, transport and concreting. The weld is often called tack weld. 3.3 shear factor Sf relation between the shear force of a cross
34、 joint and the nominal yield strength Re, multiplied by the nominal cross section area Asof the loaded bar 3.4 manufacturer enterprise carrying out the welding works within workshops or on site ISO 17660-1:2006(E) ISO 2006 All rights reserved 3 4 Symbols and abbreviated terms a throat thickness Agt
35、percentage total elongation at maximum force An nominal cross-sectional area of the bar As nominal cross-sectional area of the bar to be anchored b excess of the bar d nominal diameter of the welded bar dmax maximum nominal diameter of the welded bar dmin minimum nominal diameter of the welded bar e
36、 distance between the bars F force to be anchored by transverse bar Fmax maximum tensile force Fs shear force l length of the weld (cross joint) lo overall lap length Lmin minimum length of the test specimen r radius of bent reinforcing steel bar Re specified characteristic yield strength of the rei
37、nforcing steel Rm nominal tensile strength of the reinforcing steel Sf shear factor t thickness of the web of a section or of a plate to be welded tmin minimum thickness of the web of a section or of a plate to be welded w weld width x root gap y depth of root face included angle BW butt weld CEV ca
38、rbon equivalent value FW fillet weld SF Shear factor class WPQR welding procedure qualification record WPS welding procedure specification -,-,- ISO 17660-1:2006(E) 4 ISO 2006 All rights reserved 5 Welding processes The following welding processes in accordance with ISO 4063 may be used (see Table 1
39、): Table 1 List of welding processes and reference numbers in accordance with ISO 4063 Welding process English term American term 111 manual metal arc welding (metal arc welding with covered electrode) shielded metal arc welding 114 self-shielded tubular cored arc welding 135 metal active gas weldin
40、g (MAG-welding) gas metal arc welding 136 tubular cored metal arc welding with active gas shield flux cored arc welding 21 resistance spot welding 23 projection welding 24 flash welding 25 resistance butt welding 42 friction welding 47 oxy-fuel gas pressure welding pressure gas welding The principle
41、s of this part of ISO 17660 may be applied to other welding processes. 6 Load-bearing welded joints 6.1 General A summary of common ranges of bar diameters for welded joints, depending on the welding process, is given in Table 2. Table 2 Common ranges of bar diameters for welded joints Welding proce
42、sses Type of welded joint Range of bar diameters for load-bearing welded joint mm 21 23 cross joint a 4 to 20 24 5 to 50 25 butt joint 5 to 25 butt joint 6 to 50 42 joint to other steel component 6 to 50 47 butt joint 6 to 50 butt joint without backing W 16 butt joint with permanent backing W 12 lap
43、 joint 6 to 32 strap joint 6 to 50 cross joint a 6 to 50 111 114 135 136 joint to other steel components 6 to 50 a dmin/dmax should be W 0,4. -,-,- ISO 17660-1:2006(E) ISO 2006 All rights reserved 5 The joints specified in 6.2, 6.3, 6.4 and 6.6 are designed to give full load-bearing capacity of the
44、bar. Exceptions are possible for butt welds and joints between reinforcing steel bars and other steel components, and shall be specified. For cross joints, the shear strength shall be specified in the design (see also Annex G). The welded joint shall meet the strength and ductility requirements of t
45、he specific reinforcing steel, unless such requirements are deemed to be irrelevant for the functions of the welded product. The joints specified below are examples of good practice. Other joint configurations may be used if they can be shown to meet the requirements of Clause 11. 6.2 Butt joints 6.
46、2.1 Butt joints welded by welding processes 111, 114, 135 and 136 Examples of butt joint preparation for load-bearing welded joints are given in Figures 1a) to 1d). Other joint preparations or types of permanent backing may also be used. The prepared joint shall be bevelled. The joint preparation sh
47、ould be carried out by grinding or flame cutting. a) Double V butt weld b) Single V butt weld c) Double bevel butt weld d) Single V butt weld with backing Key x root gap y depth of root face NOTE x and y depend on the welding process. Figure 1 Examples for preparation of butt joints 6.2.2 Butt joint
48、s welded by welding processes 24, 25, 42 and 47 For welding processes 24, 25 and 47, the misalignment of the bars shall not exceed 1 mm for the nominal bar diameters u 10 mm, and 10 % of the nominal bar diameter for the other values. -,-,- ISO 17660-1:2006(E) 6 ISO 2006 All rights reserved For welding processes 24, 25 and 47, only bars with the same diameter shall be welded together. For welding proces