BS 5950-7:1992

Committees responsible
Foreword
Specification
Section 1. General
1.1 Scope
1.2 Definitions
1.3 Major symbols
Section 2. Materials
2.1 Structural steel
2.1.1 Steels for cold formed sections
2.1.2 Steels for profiled sheet
2.1.3 Other steels
2.1.4 Strength of steels
2.2 Fasteners
2.2.1 Ordinary bolts
2.2.2 Plain washers
2.2.3 High-strength friction grip fasteners
2.2.4 Screw fasteners
2.2.5 Rivets
2.2.6 Powder-actuated fasteners
2.3 Welding consumables
Section 3. Fabrication
3.1 Methods
3.2 Cutting
3.3 Holing
3.4 Identification
3.5 Handling and storage
3.6 Repair of protective coatings
Section 4. Assembly and erection of structures in cold
            formed sections
4.1 General
4.2 Bolting
4.3 Friction grip fasteners used in the pre-tensioned
       condition
4.4 Screw fixings
4.5 Rivets
4.6 Welding
4.6.1 Arc welding
4.6.2 Spot welding
4.7 Erection
4.7.1 General
4.7.2 Purlins and sheeting rails
4.7.3 Alignment
4.7.4 Accuracy of construction
4.7.5 Supports and foundations
4.8 Erection tolerances
4.8.1 General
4.8.2 Connection to concrete elements
4.8.3 Column bases
4.8.4 Plumbing and alignment of columns
4.8.5 Position in plan of members
4.8.6 Levels
4.9 Protective treatment
Section 5. Manufacturing and fabrication tolerances
5.1 General
5.2 Dimensional tolerances - cold formed open
       sections
5.2.1 Position of measurement
5.2.2 Thickness
5.2.3 External dimensions
5.2.4 Length
5.2.5 Angular tolerances
5.2.6 Straightness
5.2.7 Angle of twist
5.2.8 Compound members
5.3 Dimensional tolerances - profiled sheets
5.3.1 Thickness
5.3.2 Length
5.3.3 Out-of-squareness
5.3.4 Straightness
5.3.5 Bulging or contraction
5.3.6 Dimensions of profiled sheets
Appendix
A General recommendations for steelwork tenders and
       contracts
Tables
1 Internal elements of open sections
2 Outstand elements
3 Profiled sheets
Figures
1 Internal element of open section
2 Outstand element
3 Deviation from straightness for cold formed
       sections
4 Deviation from squareness
5 Deviation from straightness for profiled sheets
6 Bulging and contraction of a profiled sheet
7 Profiled sheet

Specifies requirements for fabrication, materials and erection, using cold formed steel, of structural steelwork in building. Also specifies requirements for profiled sheets for cladding, flooring and roof decking in buildings up to the time the product is delivered to the building site. Does not cover the special requirements pertaining to the fabrication of curved profiled sheets. Coverage includes definitions, major symbols, bolting and cutting. Also includes tables and diagrams.