BS EN 1090-3:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Specifications and documentation
   4.1 Execution specification
        4.1.1 General
        4.1.2 Execution classes
        4.1.3 Tolerance types
        4.1.4 Tolerance class for shell structures
        4.1.5 Testing and acceptance criteria for welding
   4.2 Constructor's documentation
        4.2.1 Quality documentation
        4.2.2 Quality plan
        4.2.3 Safety during erection
        4.2.4 Execution documentation
5 Constituent products
   5.1 General
   5.2 Identification, inspection documents and traceability
   5.3 Parent material
   5.4 Aluminium products
   5.5 Welding consumables
   5.6 Mechanical fasteners
        5.6.1 Bolts, nuts and plain washers
        5.6.2 Studs
        5.6.3 Rivets
        5.6.4 Self-drilling and self-tapping screws
        5.6.5 Bearings
   5.7 Adhesive bonding
6 Preparation
   6.1 General
   6.2 Identification
   6.3 Handling, storage and transportation
   6.4 Cutting
   6.5 Forming
   6.6 Holing for fasteners
   6.7 Cut outs
   6.8 Full contact bearing surfaces
   6.9 Assemblies
   6.10 Heat treatment
   6.11 Straightening
7 Welding
   7.1 General
   7.2 Welding plan
        7.2.1 Requirement for a welding plan
        7.2.2 Content of a welding plan
   7.3 Welding process
   7.4 Qualification of welding procedures and welding personnel
        7.4.1 Qualification of welding procedures
        7.4.2 Validity of the welding procedure qualification
        7.4.3 Qualification of welders and welding operators
        7.4.4 Welding coordination personnel
   7.5 Preparation and execution of welding
        7.5.1 General
        7.5.2 Joint preparation
        7.5.3 Weather protection
        7.5.4 Assembly for welding
        7.5.5 Temporary attachments
        7.5.6 Tack welds
        7.5.7 Preheating and interpass temperature
        7.5.8 Butt welds
        7.5.9 Slot and plug welds
        7.5.10 Other welds
   7.6 Acceptance criteria
   7.7 Post-weld heat treatment
8 Mechanical fastening and adhesive bonding
   8.1 Joint assembly for mechanical fastening
        8.1.1 Preparation of contact surfaces
        8.1.2 Fit-up
        8.1.3 Preparations of contact surfaces in slip-resistant
               connections
   8.2 Bolted connections
        8.2.1 General
        8.2.2 Bolts
        8.2.3 Fitted bolts
        8.2.4 Countersunk bolts
        8.2.5 Nuts
        8.2.6 Washers
   8.3 Tightening of bolted connections
        8.3.1 Non-preloaded connections
        8.3.2 Preloaded connections
   8.4 Riveting
        8.4.1 General
        8.4.2 Installation of rivets
   8.5 Fastening of cold formed members and sheeting
   8.6 Adhesive bonded connections
9 Erection
   9.1 General
   9.2 Site conditions
   9.3 Erection method statement
   9.4 Supports
   9.5 Execution on site
        9.5.1 Site survey
        9.5.2 Marking
        9.5.3 Handling and storage at site
        9.5.4 Erection methods
        9.5.5 Alignment and grouting
   9.6 Protection of surfaces, cleaning after erection
10 Surface treatment
   10.1 General
   10.2 Protection of the structure and components
   10.3 Protection of contact surfaces and fasteners
        10.3.1 General
        10.3.2 Contact surfaces aluminium-to-aluminium and
               aluminium-to-plastics
        10.3.3 Contact surfaces of aluminium and steel or wood
        10.3.4 Contact surfaces of aluminium and concrete,
               brickwork and plaster, etc.
        10.3.5 Fasteners
        10.3.6 Bonded joints
   10.4 Fire protection
11 Geometrical tolerances
   11.1 Types of tolerances
   11.2 Essential tolerances
        11.2.1 General
        11.2.2 Manufacturing tolerances
        11.2.3 Erection tolerances
   11.3 Functional tolerances
        11.3.1 General
        11.3.2 Manufacturing tolerances
12 Inspection, testing and corrections
   12.1 General
   12.2 Constituent products and components
        12.2.1 Constituent products
        12.2.2 Components
   12.3 Preparation
        12.3.1 Forming
        12.3.2 Geometrical dimensions of components
   12.4 Welding
        12.4.1 Inspection stages
        12.4.2 Methods of inspection and personnel qualification
        12.4.3 Extent of inspection
        12.4.4 Acceptance criteria for welds
        12.4.5 Repair welds
        12.4.6 Inspection of temporary attachment locations
               after removal
   12.5 Mechanical fasteners
        12.5.1 Inspection of connections with non-preloaded bolts
        12.5.2 Inspection of connections with preloaded bolts
        12.5.3 Inspection of riveted connections
   12.6 Adhesive bonding
   12.7 Nonconforming products
        12.7.1 Nonconforming constituent products
        12.7.2 Nonconforming components and structures
Annex A (normative) - Required additional information, options to
        be specified and requirements for execution classes
      A.1 List of required information
      A.2 List of options to be specified
      A.3 Requirements related to execution classes
Annex B (informative) - Checklist for the content of a quality plan
      B.1 Introduction
      B.2 Content
          B.2.1 Management
          B.2.2 Specification review
          B.2.3 Documentation
          B.2.4 Inspection and testing procedures
Annex C (normative) - Cruciform weld test
      C.1 Introduction
      C.2 Test piece
      C.3 Examination and testing
Annex D (normative) - Procedure for determination of slip factor
      D.1 The purpose of testing
      D.2 Significant variables
      D.3 Test specimens
      D.4 Slip test procedure and evaluation of results
      D.5 Extended creep test procedure and evaluation
      D.6 Test results
Annex E (informative) - Fastening of cold formed members and sheeting
      E.1 General
      E.2 Use of self-tapping and self-drilling screws
      E.3 Use of blind rivets
      E.4 Fastening sidelaps
Annex F (informative) - Surface treatment
      F.1 Anodic oxidation
      F.2 Coatings
          F.2.1 General
          F.2.2 Pre-treatment
          F.2.3 Base coat
          F.2.4 Final coat
          F.2.5 Coatings with bitumen or bituminous combinations
          F.2.6 Repair coatings
      F.3 Passivation
Annex G (normative) - Geometrical tolerances - Essential tolerances
      G.1 Manufacturing tolerances
          G.1.1 General
          G.1.2 Welded I-sections
          G.1.3 Welded box sections
          G.1.4 Webs
          G.1.5 Components
          G.1.6 Base plates and end plate connections
          G.1.7 Column splices
          G.1.8 Lattice components
      G.2 Erection tolerances
          G.2.1 Columns
          G.2.2 Beams
          G.2.3 Full contact bearing
Annex H (normative) - Geometrical tolerances - Functional tolerances
      H.1 General
      H.2 Manufacturing tolerances
          H.2.1 Box sections
          H.2.2 Components
          H.2.3 Stiffeners
          H.2.4 Fastener holes, notches and edges
          H.2.5 Lattice components
      H.3 Erection tolerances
          H.3.1 Columns
          H.3.2 Beams, rafters and trusses
      H.4 Bridges
Annex I (normative) - Geometrical tolerances - Shell structures
      I.1 General
      I.2 Out-of roundness tolerances
      I.3 Non-intended eccentricity due to execution
      I.4 Dent tolerances
      I.5 Interface flatness tolerances
Annex J (informative) - Designation of requirements to welds on
                        drawings
      J.1 General
      J.2 Global specification
      J.3 Specific designations for welds, part of welds, details
Annex K (informative) - Recommendations for description of site
        conditions and erection in the execution specification
      K.1 Site conditions
      K.2 Erection method statement
Annex L (informative) - Guide for preparation of the execution
        specification for quality requirements of welds
      L.1 General
      L.2 Utilization grades and utilization ranges
          L.2.1 General
          L.2.2 Utilization grade for components and structures
                in service category SC1
          L.2.3 Utilization grade for components and structures
                in service category SC2
      L.3 Extent of additional NDT
          L.3.1 Extent of NDT (%) for components/structures in
                service category SC1
          L.3.2 Extent of additional NDT (%) for
                components/structures in service category SC2
      L.4 Acceptance criteria for welds
          L.4.1 Acceptance criteria for welds in service
                category SC1
          L.4.2 Acceptance criteria for welds in service
                category SC2
Annex M (informative) - Guide for specification of quality
        requirements for components and structures in SC2
Annex N (informative) - Chart for development and use of a
        welding procedure specification (WPS)
Bibliography

Describes requirements independent of the type and shape of the aluminium structure, and this is applicable to structures under predominantly static loads as well as structures subject to fatigue. It specifies requirements related to the execution classes that are linked with consequence classes.

This European Standard specifies requirements for the execution of aluminium structural components and structures made from: a) rolled sheet, strip and plate; b) extrusions; c) cold drawn rod, bar and tube; d) forgings; e) castings. NOTE 1 The execution of structural components is referred to as manufacturing, in accordance with EN 1090-1. This European Standard specifies requirements independent of the type and shape of the aluminium structure, and this European Standard is applicable to structures under predominantly static loads as well as structures subject to fatigue. It specifies requirements related to the execution classes that are linked with consequence classes. NOTE 2 Consequence classes are defined in EN 1990. NOTE 3 Recommendations for selection of execution class in relation to consequence class are given in EN 1999-1-1. This European Standard covers components made of constituent products with thickness not less than 0,6 mm for welded components not less than 1,5 mm. This European Standard applies to structures designed according to the relevant parts of EN 1999. If this European Standard is used for structures designed according to other design rules or used for other alloys and tempers not covered by EN 1999, a judgement of the reliability elements in these design rules should be made. This European Standard specifies requirements for surface preparation prior to application of a protective treatment, and gives guidelines for application for such treatment in an informative annex. This European Standard gives options for specifying requirements to match project specific requirements. This European Standard is also applicable to temporary aluminium structures.