1、BS EN1090-2:2008ICS91.080.10NOCOPYINGWITHOUTBSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISHSTANDARDExecutionofsteelstructures andaluminium structuresPart2:Technical requirements forsteel structures+A1:2011This British Standard was published under the authority of the Standards Policy and
2、Strategy Committee on 32008 BSI 2011ISBN 978 0 580 73871 5Amendments/corrigenda issued since publicationDate CommentsBS EN 1090-2:2008+A1:20111DecemberNational Foreword This British Standard is the UK implementation ofBS EN 1090-2:2008+A1:2011. It supersedes BS EN 1090-2:2008, which is withdrawn.The
3、 start and finish of text introduced or altered by amendmentis indicated in the text by tags. Tags indicating changes to CENtext carry the number of the CEN amendment. For example,text altered by CEN amendment A1 is indicated by !“.The UK participation in its preparation was entrusted to Technical C
4、ommittee CB/203, Design EXC2: Quality level C generally; EXC3: Quality level B (i.e. as required for welder qualification tests and welding procedure qualification records); EXC4: Quality level B+. These levels may generally be appropriate to establish, prequalify and certificate the routine quality
5、 level of the manufacturers welding operations. However, although EXC4 can be used to specify the extent of supplementary non-destructive testing, the associated quality level B+ is not practicallyachievable in routine production as it requires the manufacturer to demonstrate a capability of meeting
6、 a quality level which is more stringent than that for which the manufacturers welders and welding procedures are qualified. Thus, if a quality level of B or higher is required, it is more practical to specify this for each relevant joint detail and not for routine production, using the acceptance c
7、riteria given in PD 6705-2 for evaluating imperfections on an individual basis, as permitted by BS EN 1090-2. TolerancesBS EN 1090-2 is more complicated than the British Standards that it supersedes in its approach to specifying permitted geometrical deviations as systems of tolerances. Three types
8、of geometrical tolerance are defined: 1. essential tolerances that are essential for the mechanical resistance and stability of the completed structure and which are used to support conformity assessment to BS EN 1090-1; 2. functional tolerances required to fulfil other criteria such as fit-up and a
9、ppearance; 3. special tolerances that may be specified for project-specific reasons, and which would need to be clearly defined in the execution specification. Functional tolerances are defined for two classes, of which the less onerous tolerance class 1 is the default specification for routine exec
10、ution. Tolerance class 2 is likely to require special and more expensive measures in fabrication and erection. As an alternative, the standard allows BS EN ISO 13920, Welding General tolerances for welded constructions Dimensions for lengths and angles Shape and position , to be used as the basis fo
11、r specifying functional tolerances. BS EN ISO 13920 is suitable for those weldments and more heavily welded structural components where potential distortion from welding is the dominant factor in determining the dimensions and shape of the completed component and its fit-up to other components. BS E
12、N 1090-2 selects the class relevant to the function of structural components from the four tolerance classes defined in BS EN ISO 13920. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a Briti
13、sh Standard cannot confer immunity from legal obligations. BS EN 1090-2:2008+A1:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1090-2:2008+A1 August 2011 ICS 91.080.10 Supersedes EN 1090-2:2008English Version Execution of steel structures and aluminium structures - Part 2: Technical requir
14、ements for steel structures Excution des structures en acier et des structures en aluminium - Partie 2: Exigences techniques pour les structures en acier Ausfhrung von Stahltragwerken und Aluminiumtragwerken - Teil 2: Technische Regeln fr die Ausfhrung von Stahltragwerken This European Standard was
15、approved by CEN on 11 April 2008 and includes Amendment 1 approved by CEN on 25 June 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date l
16、ists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation und
17、er the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
18、 Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NO
19、RMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1090-2:2008+A1:2011: E2 Contents Page Foreword 9Introduction . 101 Scope 112 Normative references 122.1 General 122.2 C
20、onstituent products 122.2.1 Steels 122.2.2 Steel castings . 142.2.3 Welding consumables . 142.2.4 Mechanical fasteners 152.2.5 High strength cables . 172.2.6 Structural bearings 172.3 Preparation . 172.4 Welding . 172.5 Testing 192.6 Erection . 192.7 Corrosion protection . 202.8 Tolerances 202.9 Mis
21、cellaneous 203 Terms and definitions . 214 Specifications and documentation 234.1 Execution Specification 234.1.1 General 234.1.2 Execution classes 234.1.3 Preparation grades 234.1.4 Geometrical tolerances . 244.2 Constructors documentation 244.2.1 Quality documentation 244.2.2 Quality plan 244.2.3
22、Safety of the erection works . 254.2.4 Execution documentation . 255 Constituent products 255.1 General 255.2 Identification, inspection documents and traceability 255.3 Structural steel products 265.3.1 General 265.3.2 Thickness tolerances 285.3.3 Surface conditions 285.3.4 Special properties 295.4
23、 Steel castings . 295.5 Welding consumables . 295.6 Mechanical fasteners 315.6.1 General 315.6.2 Terminology . 315.6.3 Structural bolting assemblies for non preloaded applications 315.6.4 Structural bolting assemblies for preloading . 315.6.5 Direct tension indicators . 325.6.6 Weather resistant ass
24、emblies 325.6.7 Foundation bolts 32BS EN 1090-2:2008+A1:2011EN 1090-2:2008+A1:2011 (E)3 5.6.8 Locking devices . 325.6.9 !Washers“ . 325.6.10 Hot rivets 335.6.11 Fasteners for thin gauge components 335.6.12 Special fasteners . 335.6.13 Delivery and identification 335.7 Studs and shear connectors 345.
25、8 Grouting materials . 345.9 Expansion joints for bridges 345.10 High strength cables, rods and terminations . 345.11 Structural bearings 356 Preparation and assembly 356.1 General . 356.2 Identification 356.3 Handling and storage 356.4 Cutting 386.4.1 General . 386.4.2 Shearing and nibbling . 386.4
26、.3 Thermal cutting 386.4.4 Hardness of free edge surfaces . 396.5 Shaping 396.5.1 General . 396.5.2 Hot forming 406.5.3 Flame straightening 406.5.4 Cold forming 406.6 Holing 426.6.1 Dimensions of holes . 426.6.2 Tolerances on hole diameter for bolts and pins 436.6.3 Execution of holing . 436.7 Cut o
27、uts 446.8 Full contact bearing surfaces 456.9 Assembly 456.10 Assembly check 467 Welding . 467.1 General . 467.2 Welding plan 467.2.1 Requirements for a welding plan . 467.2.2 Content of a welding plan . 467.3 Welding processes 477.4 Qualification of welding procedures and welding personnel . 487.4.
28、1 Qualification of welding procedures . 487.4.2 Welders and welding operators . 507.4.3 Welding coordination 507.5 Preparation and execution of welding 527.5.1 Joint preparation . 527.5.2 Storage and handling of welding consumables . 537.5.3 Weather protection 537.5.4 Assembly for welding . 547.5.5
29、Preheating 547.5.6 Temporary attachments 547.5.7 Tack welds . 547.5.8 Fillet welds . 557.5.9 Butt welds 557.5.10 Welds on steels with improved atmospheric corrosion resistance . 567.5.11 Branch connections 567.5.12 Stud welding 567.5.13 Slot and plug welds . 567.5.14 Spot welds for thin gauge compon
30、ents 57BS EN 1090-2:2008+A1:2011EN 1090-2:2008+A1:2011 (E)4 7.5.15 Other weld types 577.5.16 Post-weld heat treatment 577.5.17 Execution of welding . 577.5.18 Welding of bridge decks . 587.6 Acceptance criteria 587.7 Welding of stainless steels . 597.7.1 Amendments to EN 1011-1 requirements . 597.7.
31、2 Amendments to EN 1011-3 requirements . 607.7.3 Welding dissimilar steels 618 Mechanical fastening 618.1 General 618.2 Use of bolting assemblies 618.2.1 General 618.2.2 Bolts 628.2.3 Nuts . 628.2.4 Washers 628.3 Tightening of non-preloaded bolts 638.4 Preparation of contact surfaces in slip resista
32、nt connections . 638.5 Tightening of preloaded bolts 648.5.1 General 648.5.2 Torque reference values . 668.5.3 Torque method . 668.5.4 Combined method . 668.5.5 HRC method . 678.5.6 Direct tension indicator method 688.6 Fit bolts . 688.7 Hot riveting . 688.7.1 Rivets 688.7.2 Installation of rivets .
33、 688.7.3 Acceptance criteria 698.8 Fastening of thin gauge components 698.8.1 General 698.8.2 Use of self-tapping and self-drilling screws . 708.8.3 Use of blind rivets 708.8.4 Fastening sidelaps 718.9 Use of special fasteners and fastening methods . 718.10 Galling and seizure of stainless steels 71
34、9 Erection . 729.1 General 729.2 Site conditions . 729.3 Erection method 739.3.1 Design basis for the erection method . 739.3.2 Constructors erection method 739.4 Survey . 749.4.1 Reference system 749.4.2 Position points . 759.5 Supports, anchors and bearings . 759.5.1 Inspection of supports 759.5.2
35、 Setting out and suitability of supports 759.5.3 Maintaining suitability of supports 759.5.4 Temporary supports 759.5.5 Grouting and sealing . 769.5.6 Anchoring . 779.6 Erection and work at site 779.6.1 Erection drawings 779.6.2 Marking . 789.6.3 Handling and storage on site . 789.6.4 Trial erection
36、 79BS EN 1090-2:2008+A1:2011EN 1090-2:2008+A1:2011 (E)5 9.6.5 Erection methods 7910 Surface treatment 8010.1 General . 8010.2 Preparation of steel !substrates for paints and related products“. 8110.3 Weather resistant steels . 8210.4 Galvanic coupling 8210.5 Galvanizing 8210.6 Sealing of spaces 8210
37、.7 Surfaces in contact with concrete . 8310.8 Inaccessible surfaces . 8310.9 Repairs after cutting or welding 8310.10 Cleaning after erection 8310.10.1Cleaning of thin gauge components . 8310.10.2Cleaning of stainless steels components . 8311 Geometrical tolerances . 8411.1 Tolerance types . 8411.2
38、Essential tolerances 8411.2.1 General . 8411.2.2 Manufacturing tolerances . 8411.2.3 Erection tolerances . 8511.3 Functional tolerances . 8611.3.1 General . 8611.3.2 Tabulated values . 8611.3.3 Alternative criteria . 8712 Inspection, testing and correction . 8712.1 General . 8712.2 Constituent produ
39、cts and components 8712.2.1 Constituent products 8712.2.2 Components . 8812.2.3 Non conforming products 8812.3 Manufacturing: geometrical dimensions of manufactured components 8812.4 Welding . 8912.4.1 Inspection before and during welding 8912.4.2 Inspection after welding . 8912.4.3 Inspection and t
40、esting of welded shear studs for composite steel and concrete structures . 9212.4.4 Production tests on welding 9212.5 Mechanical fastening 9312.5.1 Inspection of non-preloaded bolted connections 9312.5.2 Inspection and testing of preloaded bolted connections . 9312.5.3 Inspection, testing and repai
41、rs of hot rivets. 9612.5.4 Inspection of cold formed components and sheeting fastening . 9712.5.5 Special fasteners and fastening methods 9712.6 Surface treatment and corrosion protection 9812.7 Erection 9812.7.1 Inspection of trial erection . 9812.7.2 Inspection of the erected structure . 9812.7.3
42、Survey of geometrical position of connection nodes . 9812.7.4 Other acceptance tests . 100Annex A (normative) Additional information, list of options and requirements related to the execution classes 101A.1 List of required additional information . 101A.2 List of options 104A.3 Requirements related
43、to the execution classes . 108Annex B (informative) Guidance for the determination of execution classes 112B.1 Introduction 112B.2 Governing factors for choice of execution class . 112B.2.1 Consequence classes . 112BS EN 1090-2:2008+A1:2011EN 1090-2:2008+A1:2011 (E)6 B.2.2 Hazards connected with exe
44、cution and use of the structure . 112B.3 Determination of execution classes 113Annex C (informative) Check-list for the content of a quality plan 115C.1 Introduction 115C.2 Content . 115C.2.1 Management . 115C.2.2 Specification review 115C.2.3 Documentation . 115C.2.4 Inspection and testing procedur
45、es 116Annex D (normative) Geometrical tolerances 117D.1 Essential tolerances 117D.1.1 Essential manufacturing tolerances Welded profiles . 118D.1.2 Essential manufacturing tolerances Press braked cold formed profiles . 119D.1.3 Essential manufacturing tolerances Flanges of welded profiles 120D.1.4 E
46、ssential manufacturing tolerances Flanges of welded box sections . 121D.1.5 Essential manufacturing tolerances Web stiffeners of profiles or box sections. 123D.1.6 Essential manufacturing tolerances Stiffened plating . 125D.1.7 Essential manufacturing tolerances Cold formed profiled sheets 126D.1.8 Essential manufacturing tolerances Fastener holes, notches and cut edges . 127D.1.9 Essential manufacturing tolerances Cylindrical and conical shells . 128D.1.10 Essential manufacturing tolerances
