CSA S473 : 2004

Technical Committee on Steel and Concrete Structures
Working Group on Steel Structures
Preface
1 Scope
2 Reference publications
3 Definitions, abbreviations, and symbols
   3.1 Definitions
   3.2 Abbreviations
   3.3 Symbols
4 Drawings and documents
   4.1 General
   4.2 Design drawings
   4.3 Arrangement drawings and specifications
   4.4 Fabrication drawings and specifications
         4.4.1 Fabrication drawings
         4.4.2 Specifications
   4.5 Shop drawings
   4.6 As-built drawings
5 Materials
   5.1 General
   5.2 Steelmaking
   5.3 Chemical composition
   5.4 Mechanical properties
   5.5 Extent of mechanical tests
   5.6 Tolerances
   5.7 Bolts, nuts, and washers
   5.8 Documentation and identification
         5.8.1 Quality assurance
         5.8.2 Marking
         5.8.3 Unidentified materials
6 Toughness requirements
   6.1 General
   6.2 Toughness testing
         6.2.1 Base metal
         6.2.2 Heat-affected zone and weld metal
         6.2.3 Cast or forged base metal
7 Design requirements
   7.1 General
   7.2 Limit states
         7.2.1 General
         7.2.2 Ultimate limit states
         7.2.3 Serviceability limit states
   7.3 Other requirements
         7.3.1 General
         7.3.2 Structural integrity
         7.3.3 Deflections, velocities, and accelerations
         7.3.4 Stability of structures
         7.3.5 Fracture control
         7.3.6 Handling appurtenances
         7.3.7 Damage due to freezing water
         7.3.8 System ductility
         7.3.9 Fluid tightness
8 Analysis of structure
   8.1 General
   8.2 Elastic analysis
   8.3 Plastic analysis
   8.4 Stability effects
   8.5 Dynamic analysis
   8.6 Tests
9 Dimensional criteria for members
   9.1 Lengths of members
         9.1.1 Lengths for analysis
         9.1.2 Lengths for design
         9.1.3 Effective lengths
   9.2 Slenderness ratios
   9.3 Width-thickness ratios of rolled shapes, hollow
         structural sections, and plates
   9.4 Gross and net areas of tension members
10 Member resistances
   10.1 General
   10.2 Structural fabricated tubular members
   10.3 Rolled shapes and hollow structural sections
   10.4 Resistance of stiffened plate panels and composite walls
   10.5 Cylindrical shells
         10.5.1 General
         10.5.2 Unstiffened circular cylinders - Structural
                fabricated tubular members
         10.5.3 Cylinders, shells, and curved panels
         10.5.4 Tensile stress limit state
   10.6 Padeyes
11 Joint and connection resistances
   11.1 Joints between circular fabricated tubular members
         11.1.1 General
         11.1.2 Simple joints
         11.1.3 Overlap joints
         11.1.4 Complex joints
         11.1.5 Congested joints
         11.1.6 Grouted joints
   11.2 Hollow structural section joints
   11.3 Other joints
   11.4 Welds
   11.5 Bolts
12 Stiffened plate panels
   12.1 Scope
         12.1.1 General
         12.1.2 Forces
         12.1.3 Resistance factor
   12.2 Design for loads normal to the panel
         12.2.1 Design of skin plate
         12.2.2 Design of stiffeners
         12.2.3 Design of girders
   12.3 Design for in-plane forces
         12.3.1 General
         12.3.2 Design of skin plate
         12.3.3 Longitudinal stiffener requirements
         12.3.4 Design of stiffened plate
         12.3.5 Girder requirements
   12.4 Design for normal and in-plane forces
         12.4.1 Design of skin plate
         12.4.2 Design of stiffened plates and girders
13 Composite walls
   13.1 General
   13.2 Design forces
   13.3 Analysis
         13.3.1 Global load effects
         13.3.2 Local load effects
   13.4 Resistance factors
   13.5 Material properties
   13.6 Flexure due to transverse loads
         13.6.1 General
         13.6.2 Concrete strength in flexure
         13.6.3 Steel strength in flexure
   13.7 Shear due to transverse loads
   13.8 Bearing
   13.9 Axial load
   13.10 In-plane flexure and shear
   13.11 Two-way composite wall systems
   13.12 Crack control
   13.13 Fatigue resistance
14 Fatigue
   14.1 General
   14.2 Life
   14.3 Scope of fatigue analysis
   14.4 Joint classification
   14.5 Stresses to be considered
   14.6 Joints between structural fabricated tubular members
   14.7 Joints of hollow structural section members
   14.8 Allowable stress ranges
         14.8.1 Basic design S-N curves
         14.8.2 Basic S-N curves (N <= 10[7] cycles)
         14.8.3 Basic S-N curves (N > 10[7] cycles)
   14.9 Modifications to basic S-N curves
         14.9.1 Seawater effects
         14.9.2 Thickness effects
         14.9.3 Weld improvement
   14.10 Cast or forged steel components
   14.11 Fracture mechanics
15 Corrosion and abrasion protection
   15.1 General
   15.2 Protection in the atmospheric zone
   15.3 Protection in the splash zone
   15.4 Protection in the submerged zone
         15.4.1 Application
         15.4.2 Impressed current systems
         15.4.3 Sacrificial anode systems
         15.4.4 Operational system checks on impressed current
                systems
   15.5 Drawings and records
   15.6 Inspection requirements
   15.7 Coating systems
16 Connection and bolting details
   16.1 Connection details for other joints
   16.2 Connections using high-strength bolts
17 Welding
   17.1 General
   17.2 Processes
   17.3 Material requirements
   17.4 Certification
   17.5 Resistance of welds
   17.6 Fabrication
   17.7 Inspection
   17.8 Repairs
   17.9 Underwater welding
18 Tolerances of as-built structures
   18.1 General
   18.2 Structural fabricated tubular members
   18.3 Plate structures
   18.4 Rolled shapes and hollow structural sections
   18.5 Built-up members
   18.6 Welded members
   18.7 Compression members
   18.8 Trusses
19 Fabrication and construction
   19.1 General
   19.2 Identification
   19.3 Straightness of material
   19.4 Thermal cutting
   19.5 Sheared or thermal cut edge finish
   19.6 Holes for bolts or other mechanical fasteners
   19.7 Bolted construction
   19.8 Adequacy of temporary connections
   19.9 Alignment
   19.10 Finishing of bearing surfaces
   19.11 Storage of materials
   19.12 Heat treatment
20 Cleaning, surface preparation, and priming
   20.1 General
   20.2 Surface preparation
21 Inspection
   21.1 General
   21.2 Rejection
   21.3 Inspection of welding
   21.4 Inspection of high-strength bolted joints
Annexes
A (normative) - Supplementary requirements for CSA W59
B (normative) - Additional requirements for the qualification
  of welders, welding operations, and welding procedures
C (normative) - Toughness qualification tests
D (informative) - Heat-affected zone crack tip opening
  displacement testing: Guidance on joint details and
  notch placement
E (informative) - Examples of structural element toughness
  classifications for fixed structures
Tables
Figures

Specifies requirements for the design and fabrication of steel fixed offshore structures whose design is based on limit states.