BS EN 1993-1-3:2006

1 Introduction
   1.1 Scope
   1.2 Normative references
   1.3 Terms and definitions
   1.4 Symbols
   1.5 Terminology and conventions for dimensions
2 Basis of design
3 Materials
   3.1 General
   3.2 Structural steel
   3.3 Connecting devices
4 Durability
5 Structural analysis
   5.1 Influence of rounded corners
   5.2 Geometrical proportions
   5.3 Structural modelling for analysis
   5.4 Flange curling
   5.5 Local and distortional buckling
   5.6 Plate buckling between fasteners
6 Ultimate limit states
   6.1 Resistance of cross-sections
   6.2 Buckling resistance
   6.3 Bending and axial tension
7 Serviceability limit states
   7.1 General
   7.2 Plastic deformation
   7.3 Deflections
8 Design of joints
   8.1 General
   8.2 Splices and end connections of members subject to
        compression
   8.3 Connections with mechanical fasteners
   8.4 Spot welds
   8.5 Lap welds
9 Design assisted by testing
10 Special considerations for purlins, liner trays and sheetings
   10.1 Beams restrained by sheeting
   10.2 Liner trays restrained by sheeting
   10.3 Stressed skin design
   10.4 Perforated sheeting
Annex A [normative] - Testing procedures
   A.1 General
   A.2 Tests on profiled sheets and liner trays
   A.3 Tests on cold-formed members
   A.4 Tests on structures and portions of structures
   A.5 Tests on torsionally restrained beams
   A.6 Evaluation of test results
Annex B [informative] - Durability of fasteners
Annex C [informative] - Cross section constants for thin-walled
                        cross sections
   C.1 Open cross sections
   C.2 Cross section constants for open cross section with
        branches
   C.3 Torsion constant and shear centre of cross section with
        closed part
Annex D [informative] - Mixed effective width/effective thickness
                        method for outstand elements
Annex E [Informative] - Simplified design for purlins

Defines design requirements for cold-formed members and sheeting. Also applies to cold-formed steel products made from coated or uncoated hot or cold rolled sheet or strip, that have been cold-formed by such processes as cold-rolled forming or press-braking.

1. EN 1993-1-3 gives design requirements for cold-form ed members and sheeting. It applies to cold-formed steel products made from coated or uncoated hot or cold rolled sheet or strip, that have been cold-formed by such processes as cold-rolled forming or press-braking. It may also be used for the design of profiled steel sheeting for composite steel and concrete slabs at the construction stage, see EN 1994. The execution of steel structures made of cold-formed members and sheeting is covered in EN 1090.

   NOTE: The rules in this part complement the rules in other parts of EN 1993-1.

2. Methods are also given for stressed-skin design using steel sheeting as a structural diaphragm.

3. This part does not apply to cold-formed circular and rectangular structural hollow sections supplied to EN 10219, for which reference should be made to EN 1993-1-1 and EN 1993-1-8.

4. EN 1993-1-3 gives methods for design by calculation and for design assisted by testing. The methods for design by calculation apply only within stated ranges of material properties and geometrical proportions for which sufficient experience and test evidence is available. These limitations do not apply to design assisted by testing.

5. EN 1993-1-3 does not cover load arrangement for testing for loads during execution and maintenance.

6. The calculation rules given in this standard are only valid if the tolerances of the cold formed members comply with EN 1090-2