Foreword
1. GENERAL
1.1 Scope
1.2 Definitions and symbols
2. MATERIALS
2.1 Designation of material
2.2 Selection of material
2.3 Relevant standards
2.4 Structural sections
2.5 Tolerances
3. LOADING
3.1 General
3.2 Dead load
3.3 Live or imposed loads and impact effects
3.4 Wind
3.5 Temperature
3.6 Other loads
4. DESIGN
4.1 General
4.1.1 Factors affecting design
4.1.2 Design requirements
4.1.3 Permissible stresses
4.1.4 Combined stresses
4.1.5 Temperature limitations
4.1.6 Thicknesses
4.2 Ties
4.2.1 Axially loaded ties
4.2.2 Eccentrically loaded ties
4.3 Struts
4.3.1 Axially loaded struts
4.3.2 Eccentrically loaded struts
4.3.3 Torsional buckling
4.3.4 Battened struts
4.3.5 Laced struts
4.3.6 Welded struts
4.3.7 Maximum slenderness ratio
4.4 Beams
4.4.1 Beams in general: deflection
4.4.2 Beams in general: section properties
4.4.3 Beams in general: permissible stresses
4.4.4 Beams in general: lateral buckling
4.4.5 Beams in general, with end loads
4.4.6 Built-up beams: construction details
4.4.7 Built-up beams: permissible stresses
4.5 Thin plates, webs and flanges
4.5.1 Local buckling in compression
4.5.2 Shear buckling
4.5.3 Buckling due to bending, axial compression and
shear
4.6 Joints
4.6.1 General
4.6.2 Bolted and riveted joints
4.6.3 Welded joints
4.6.4 Glued joints
4.6.5 Other joints
4.7 Fatigue
4.7.1 General
4.7.2 Loads and stresses
4.7.3 Permissible stresses
4.7.4 Classification of structural members
5. TESTING
5.1 General
5.2 Static acceptance test
5.3 Fatigue acceptance test
6. FABRICATION AND ERECTION
6.1 General
6.2 Bolting and riveting
6.3 Welding
6.4 Glued joints
6.5 Inspection and safety
7. PROTECTION
7.1 Protection from environment
7.2 Painting
7.3 Metal spraying
7.4 Metal-to-metal contact surfaces, and bolted and
riveted joints
7.5 Welded joints
7.6 Glued joints
7.7 Contact between aluminium and non-metallic
materials
7.8 Protection against fire
APPENDICES
A. Nomenclature of aluminium products
B. Foreign equivalents of U.K. aluminium alloys
C. Supplementary alloys
D. Derivations of permissible stresses
E. Deduction for holes in members
F. Torsional properties of thin-walled open sections
G. Torsional buckling
H. Lateral buckling of beams
J. Stresses in webs of built-up beams
K. Local buckling of channels and I-sections
L. Design of welded joints
M. Edge preparations for welded joints
N. Tabulated stresses for fatigue
TABLES
1. Properties of principal alloys
2. Bolt and rivet materials
3. Filler wire for inert-gas welding
4. Permissible stresses for principal alloys
5. Outstanding-leg deductions for single-bay ties
6. Effective lengths of struts
7. Values of lambda t for struts
8. Values of C1 and C2 for webs
9. Condition-of-restraint factor k1
10. Bending-moment-shape factor k2
11. Local buckling coefficient m
12. Permissible stresses for bolts and rivets
13. Hole clearances for bolts and rivets
14. Permissible stresses for welded joints and
reduced-strength zones
15. Information for welding procedure
16. Mechanical test requirements for butt-weld
procedure and welder approval
17. General protection of aluminium structures
18. Protection at joints of aluminium to aluminium
19. Protection at joints of aluminium to zinc or
galvanized steel
20. Protection at joints of aluminium to steel, cast
iron or lead
21. Protection at joints of aluminium to corrosion-
resisting steel
22. Foreign equivalents of U.K. aluminium alloys
23. Properties of supplementary alloys
24. Permissible stresses for supplementary alloys
25. Specimen calculation of shear-centre position
and warping factor
26. Condition-of-restraint factor k1
27. Bending-moment-shape factor k2
28. Cross-section-shape factor k3
29. Illustrations of welded joints
30. Edge preparations for butt welds without backing
bars
31. Edge preparations for butt welds with temporary
backing bars
32. Recommended temporary-backing-bar dimensions
33. Edge preparations for butt welds with permanent
backing bars
34. Edge preparations for corner welds without backing
bars
35. Edge preparations for corner welds with temporary
backing bars
36. Edge preparations for corner welds with permanent
backing bars
37. Edge preparations for lap and fillet welds
38-46. Relationship of maximum stress, stress ratio and
number of cycles for Class 1 to Class 9 members
FIGURES
1. Permissible compressive stresses in struts
2. Permissible compressive stresses in beams and
thin plates
3. Values of kt for plain channels
4. Values of kt for lipped channels
5. Batten dimensions and spacing
6. Permissible average shear stresses in unstiffened
webs and thin plates
7. Values of klat for I-sections and channels
8. Values of klat for rectangular sections
9. Optimum spacing of longitudinal stiffeners
10. Permissible bending compressive stresses for webs
in pure bending
11. Buckling coefficient kb for combined bending and
axial compression
12. Limiting ratios of compressive and shear stresses
13. Permissible average shear stresses in stiffened
webs
14. Maximum and minimum stresses, and stress cycle
15.to 23. Curves relating maximum stress, stress ratio
and number of cycles for Class 1 to Class 9 members
24. Form of compression buckling diagrams
25. Choice of lines for deduction of holes
26. Constants for torsion factor for certain fillets
and bulbs
27. Notation for calculating shear-centre position and
warping factor
28. Shear-centre position and warping factor for
certain thin-walled sections
29. Values of the interaction coefficient k
30. Values of m for plain channels
31. Values of m for plain I-sections
32. Values of m for lipped channels
33. Values of m for lipped I-sections