BS 5973:1993

Committees responsible
Foreword
Code of practice
Section 1. General
1 Scope
2 References
3 Definitions
4 Units
5 Statutory requirements
6 Equipment
7 Care of equipment
Section 2. Standard scaffolds
8 Description of access scaffolding
9 Tying scaffolding to building facades
10 Bracing
11 Foundations
12 Standards
13 Ledgers
14 Transoms and putlogs
15 Working platforms and decking
16 Ladder access to and in scaffolds
17 Raising and lowering material
Section 3. Work on site
18 Erection, alteration and dismantling
19 Duties of erectors and users of scaffolds
20 Inspection of scaffolds
Section 4. Prefabricated components
21 Proprietary equipment
22 Use of prefabricated beams in scaffolds
Section 5. Special scaffolds
23 Loading bays founded on the ground
24 Cantilever loading bays attached to scaffold
25 Protection fans, nets and pavement frames
26 Cantilever scaffolds
27 Truss-out scaffolds
28 Free standing towers, power line crossings, guys
       and struts
29 Access birdcages
30 Hoist towers, ladder towers and stair towers
31 Slung scaffolds
32 Pedestrian bridges and walkways
33 Temporary ramps and elevated roadways
34 Masts, lighting towers and transmission towers
35 Lifting gantries
36 Temporary buildings and temporary roofs
37 Spectator terraces and seating stands
38 Temporary storage on site
Section 6. Structural calculations for scaffolds
39 Technical data and notes on calculation
Appendices
A British Standards giving details of materials and
       components
B Worked examples of scaffold design
C Effective lengths of scaffold tube struts
D Scaffolds using aluminium tube
E Maximum permissible axial stresses and loads in
       steel scaffold tubes manufactured in accordance
       with BS 1139 : Part 1 : 1982
Tables
1 Access and working scaffolds of tube and couplers
1(a) Frequency of ties in square metres per tie
2 Widths of access scaffold platforms
3 Maximum span of scaffold boards
4 Erection tolerances
5 Loadings for show stands and places of assembly
6 Mass of scaffolding materials
7 Mass of quantities of scaffolding materials
8 Mass of corrugated steel sheeting
9 Mass of men and materials
10 Mass of an unboarded lift one bay long
11 Extra mass of a boarded lift (with imposed loads)
       one bay long
12 Section properties of scaffold tubes
13(a) Properties of scaffold boards
13(b) Properties of timber other than scaffold boards
14 Maximum permissible axial stresses and loads in
       steel scaffold tubes manufactured in accordance
       with BS 1139 : Section 1.1 with a yield stress of
       235 N/mm2
15 Table deleted
16 Safety coefficients to be applied to the
       calculated heights of scaffolds designed on the
       allowable stresses
17 Safe working loads for individual couplers and
       fittings
18 Equivalent mass of safe ledger loads
19 Values of wind speed factor S3 (for probability
       level 0.63)
20 Dynamic wind pressures for various design wind
       speeds
21 Wind force factors
22 Effective lengths of struts
23 Maximum permissible axial stress and loads in
       aluminium scaffold tubes
24 Section properties of aluminium scaffold tubes
       (HE 30TF) complying with the requirements of
       BS 1139
25 Maximum permissible axial stresses and loads in
       steel scaffold tubes manufactured in accordance
       with BS 1139 : Part 1 : 1982
Figures
1 Typical putlog scaffold
2 Typical independent tied scaffold
3 Plan of typical box ties
4 Arrangement of lip ties and sway transoms
5 Through ties for independent tied scaffold
6 Through tie for a putlog scaffold on a bridle
       tube
7 Reveal tie
8 Typical end details for tie tubes
9 Typical ring bolt tie
10 Typical wire or band tie anchorage
11 Ladder fixings
12 Gin wheel fixings
13 Cantilever loading platform
14 Classes of fans for sheeting or netting
15 Typical cantilever scaffold
16 Single lift truss-out scaffold
17 Typical truss-out independent tied scaffold (on
       existing building)
18 Typical truss-out independent tied scaffold (on
       building under construction)
19 Anchors
20 Mobile access tower
21 Small power line crossing
22 Power line crossing over motorway
23 Single lift access birdcage scaffold (maximum
       superimposed load 0.75 kN/m2)
24 Isolated hoist tower
25 Plan view of plan bracing and through ties for
       hoist towers attached to a scaffold
26 Ladder access tower
27 Slung working and protection scaffolds
28 Typical vehicle ramp
29 Typical lifting gantry
30 Wind force factors
31 Basic wind speed, V
32 Wind speed factor S2 for varying heights and
       surface conditions
33 Effective lengths in tube and coupler scaffolds