AS 1664-1979

1 - AS 1664-1979 SAA ALUMINIUM STRUCTURES CODE
4 - PREFACE
5 - CONTENTS
6 - SECTION 1. GENERAL
6 - 1.1 SCOPE.
6 - 1.2 STANDARDS.
6 - 1.3 NEW MATERIALS OR METHODS.
6 - 1.4 DESIGN AND SUPERVISION.
6 - 1.4.1 Design.
6 - 1.4.2 Supervision.
6 - 1.5 DEFINITIONS.
6 - 1.5.1 General.
6 - 1.5.2 Administrative Definitions.
6 - 1.5.3 Technical Definitions.
6 - 1.6 NOTATION.
9 - SECTION 2. MATERIALS
9 - 2.1 ALUMINIUM ALLOYS.
9 - 2.2 FASTENERS AND FILLER RODS.
9 - 2.2.1 Aluminium Alloy Rivets, Bolts, Nuts and Washers.
9 - 2.2.2 Low Carbon Steel Bolts, Nuts and Washers.
9 - 2.2.3 Stainless Steel Nuts, Bolts and Washers.
10 - 2.2.4 Filler Rods.
10 - 2.3 MECHANICAL PROPERTIES OF ALUMINIUM ALLOYS.
10 - 2.4 BUCKLING CONSTANTS.
10 - 2.5 STEEL.
10 - 2.6 CONCRETE.
16 - SECTION 3. GENERAL DESIGN REQUIREMENTS
16 - 3.1 LOADS.
16 - 3.1.1 General.
16 - 3.1.2 Other Forces and Effects.
16 - 3.2 DESIGN.
16 - 3.2.1 General.
16 - 3.2.2 Computations.
16 - 3.2.3 Factors of Safety.
16 - 3.2.4 Wind Forces.
16 - 3.2.5 Stability.
16 - 3.2.6 Lateral Forces.
17 - 3.2.7 Lateral Restraining Systems.
17 - 3.2.7.1 General.
18 - 3.2.7.2 Forces.
18 - 3.2.7.3 Stiffness.
18 - 3.2.7.4 Multiple restraints.
18 - 3.2.7.5 Parallel restrained members.
18 - 3.2.7.6 Attachment of restraints.
18 - 3.2.7.7 Critical flange or chord.
18 - 3.2.8 Deflection.
18 - 3.2.9 Fatigue.
18 - 3.3 EXPERIMENTALLY BASED DESIGN.
18 - 3.3.1 General.
18 - 3.3.2 Test Loading.
18 - 3.3.2.1 Assessment of structural performance from tests.
18 - 3.3.2.2 Test forces.
18 - 3.3.2.3 Load factor.
18 - 3.3.2.4 Duration of loading.
18 - 3.3.2.5 Dynamically loaded structure.
18 - 3.3.3 Evaluation of Test Results.
18 - 3.4 WELD QUALITY IN WELDED STRUCTURES.
19 - SECTION 4. GEOMETRICAL PROPERTIES
19 - 4.1 GROSS SECTION.
19 - 4.2 EFFECTIVE SECTION.
19 - 4.2.1 Tension Members.
19 - 4.2.2 Angles.
19 - 4.2.3 Splice Members.
19 - 4.3 HOLE EFFECTIVE DIAMETERS.
19 - 4.4 SECTIONAL AREAS OF BOLTS AND RIVETS.
19 - 4.4.1 Shear Area.
19 - 4.4.2 Bearing Area.
19 - 4.4.3 Tension Area.
20 - SECTION 5. MAXIMUM PERMISSIBLE STRESSES
20 - 5.1 GENERAL.
20 - 5.2 MINIMUM MECHANICAL PROPERTIES.
20 - 5.3 MAXIMUM PERMISSIBLE STRESSES.
20 - 5.3.1 Stress Values.
20 - 5.3.2 General Formulas.
20 - 5.3.2.1 Tension, axial, net section.
20 - 5.3.2.2 Tension in extreme fibres of beams - rectangular tubes, structural shapes bent about strong axis.
20 - 5.3.2.3 Tension in extreme fibres of beams - round or oval tubes.
20 - 5.3.2.4 Tension in extreme fibres of beams - rectangular bars, plates, shapes bent about weak axis.
20 - 5.3.2.5 Bearing on rivets and bolts.
20 - 5.3.2.6 Bearing on flat surfaces and pins.
20 - 5.3.2.7 Compression in columns, axial, gross section.
21 - 5.3.2.8 Compression in components of columns -outstanding flanges and legs.
21 - 5.3.2.9 Compression in components of columns, gross section - flat plates with both edges supported.
21 - 5.3.2.10 Compression in components of columns, gross section - curved plates supported on both edges, walls of round or oval ...
21 - 5.3.2.11 Compression in beams, extreme fibre, gross section - single web beams bent about strong axis.
21 - 5.3.2.12 Compression in beams, extreme fibre, gross section - round or oval tubes.
22 - 5.3.2.13 Compression in beams, extreme fibre, gross section - solid rectangular beams.
22 - 5.3.2.14 Compression in beams, extreme fibre, gross section - rectangular tubes and box sections.
22 - 5.3.2.15 Compression in components of beams (component under uniform compression), gross section-outstanding flanges.
22 - 5.3.2.16 Compression in components of beams (component under uniform compression), gross section-flat plates with both edges ...
23 - 5.3.2.17 Compression in components of beams (component under bending in own plane), gross section-flat plates .....
23 - 5.3.2.18 Compression in components of beams (component under bending in own plane), gross section-flat plates ....
23 - 5.3.2.19 Compression in components of beams (component under bending in own plane), gross section-flat plates ....
23 - 5.3.2.20 Shear in webs - unstiffened flat webs.
23 - 5.3.2.21 Shear in webs - stiffened flat webs.
26 - 5.3.3 Maximum Permissible Stresses for Welded Members.
26 - 5.3.3.1 General.
26 - 5.3.3.2 Fillet welds.
26 - 5.3.3.3 Cross-section with part of area affected by heat of welding.
26 - 5.3.3.4 Columns and single-web beams with welds at locations other than ends, and cantilever columns and single web beams.
28 - 5.4 DESIGN DETAILS.
28 - 5.4.1 Stiffeners for Outstanding Flanges.
28 - 5.4.2 Horizontal Stiffeners for Shear Webs.
28 - 5.4.3 Vertical Stiffeners for Shear Webs.
28 - 5.4.3.1 Stiffeners to resist shear buckling.
28 - 5.4.3.2 Spacing.
28 - 5.4.3.3 Second moment of area.
28 - 5.4.3.4 Span.
28 - 5.4.3.5 Thickness.
28 - 5.4.3.6 Vertical stiffeners.
29 - 5.4.3.7 Stiffeners in bearing.
29 - 5.5 COMPRESSION IN SINGLE WEB LATERALLY UNBRACED BEAMS.
29 - 5.5.1 Scope of Rules.
29 - 5.5.2 Maximum Permissible Stress.
29 - 5.5.3 Elastic Critical Stress.
29 - 5.5.3.1 Doubly symmetric open sections.
30 - 5.5.3.2 Rectangular sections.
30 - 5.6 SPECIAL PROVISIONS FOR THIN SECTIONS.
30 - 5.6.1 General.
30 - 5.6.2 Appearance of Buckling.
30 - 5.6.3 Weighted Average Maximum Permissible Compressive Stress.
30 - 5.6.4 Trapezoidal Formed Sheet Beams.
30 - 5.6.5 Effect of Local Buckling on Column Strength.
31 - 5.6.6 Effect of Local Buckling on Beam Strength.
31 - 5.6.7 Effective Width for Calculationof Deflection of Thin Sections.
31 - 5.6.8 Web Crippling.
32 - SECTION 6. COMBINED STRESSES
32 - 6.1 GENERAL.
32 - 6.2 COMBINED COMPRESSION AND BENDING.
32 - 6.3 COMBINED SHEAR, COMPRESSION AND BENDING.
32 - 6.4 TORSION AND SHEAR IN TUBES.
33 - SECTION 7. DESIGN OF CONNECTIONS
33 - 7.1 ARRANGEMENTS AND STRENGTH OF CONNECTIONS.
33 - 7.2 MAXIMUM PERMISSIBLE FORCES ON RIVETS AND BOLTS.
33 - 7.3 DESIGN DETAILS.
33 - 7.3.1 Spacing of Rivets and Bolts.
33 - 7.3.2 Edge Distance of Rivets or Bolts.
33 - 7.3.3 Grip of Rivets and Bolts.
34 - 7.3.4 Stitch Rivets and Bolts.
34 - 7.4 ALTERNATIVE FASTENERS.
34 - 7.4.1 Blind Rivets.
34 - 7.4.2 Hollow-end Rivets.
34 - 7.4.3 Steel Rivets.
34 - 7.4.4 Lockbolts.
34 - 7.4.5 Thread-forming (Tapping) Screws and Metal Stitching Staples.
34 - 7.5 WELDED CONNECTIONS.
35 - SECTION 8. FABRICATION
35 - 8.1 LAYING OUT.
35 - 8.2 CUTTING.
35 - 8.3 HEATING.
35 - 8.4 PUNCHING, DRILLING, AND REAMING.
35 - 8.5 BOLTING.
35 - 8.6 RIVETING.
35 - 8.6.1 Hole Filling.
35 - 8.6.2 Defective Rivets.
35 - 8.7 WELDED STRUCTURES.
36 - SECTION 9. PAINTING
36 - 9.1 GENERAL.
36 - 9.2 CONTACT WITH DISSIMILAR MATERIALS.
36 - 9.3 CLEANING AND TREATMENT OF METAL SURFACES.
37 - APPENDIX A - MAXIMUM PERMISSIBLE STRESSES FOR ALUMINIUM SECTIONS
37 - A1 GENERAL
37 - A2 NOTATION.
80 - APPENDIX B - FATIGUE
80 - B1 INTRODUCTION.
80 - B2 GENERAL.
80 - B3 LOADS AND STRESS CONCENTRATIONS.
81 - B4 PERMISSIBLE STRESSES.
81 - B4.1 General.
81 - B4.2 Single Stress Cycle.
81 - B4.3 Different Stress Cycles.
81 - B4.4 Maximum Stresses Not to be Exceeded.
81 - B5 CLASSES OF CONSTRUCTIONAL DETAILS.
81 - B5.1 General.
81 - B5.2 Class 1.
81 - B5.3 Class 2.
81 - B5.4 Class 3.
82 - B5.5 Class 4
82 - B5.6 Class 5.
82 - B5.7 Class 6.
82 - B5.8 Class 7.
82 - B5.9 Class 8.
82 - B5.10 Class 9.
82 - B5.11 Dressed Butt Welds.
82 - B5.12 Bolts and Rivets.
82 - B5.13 Butt Welds between Members of Dissimilar Thickness or Width.
82 - B5.14 Weld Repairs.
82 - B5.15 Load-carrying Fillet Welds.
82 - B6 FATIGUE ACCEPTANCE TEST.
82 - B6.1 Application.
82 - B6.2 Loading.
83 - B6.3 Acceptance.
83 - B6.4 Safe-life Structures.
83 - B6.5 Fail-safe Structures.
98 - APPENDIX C - STRUTS
98 - C1 AXIALLY LOADED STRUTS.
98 - C2 ECCENTRICALLY LOADED STRUTS.
98 - C2.1 Single-bay Struts.
98 - C2.2 Struts of Two Components Back-to-back.
98 - C2.3 Others.
98 - C3 TORSIONAL BUCKLING.
99 - C4 BATTENED STRUTS.
99 - C4.1 General.
99 - C4.2 Spacing.
102 - APPENDIX D - CONSTANTS FOR LATERAL BUCKLING OF BEAMS
105 - APPENDIX E - REFERENCES ON THE ELASTIC FLEXURAL/TORSIONAL BUCKLING OF BEAMS

Sets out rules for the design and fabrication of aluminium alloy load-carrying members. Separate sections deal with materials and their properties, general design requirements, geometrical properties, maximum permissible stresses, combined stresses, design of connections, fabrication and painting. Appendices provide tables of maximum permissible stress for the alloys and the sections normally used, and also cover fatigue.

These Rules (hereinafter referred to as 'this Code') apply to the design and fabrication of aluminium alloy load-carrying members.

Under Revision See DR 96164-96165 (in part)