Equivalent Standards for the Construction of Arctic Class Ships (1995) - TP 12260

Table of Contents

Document Information

PREFACE

  • Introduction
  • Purpose
  • Background to the standards
  • Use of the standard
  • Aids for the designer and comments

EQUIVALENT STANDARDS FOR THE CONSTRUCTION OF ARCTIC CLASS SHIPS

  1. Application
  2. Equivalency with regulations
  3. Interpretation
  4. Ship categorization
  5. Requirements
  6. Documentation
  7. Responsibility of the owner and master

SCHEDULE 1

SUBDIVISION and CRITERIA FOR STABILITY AFTER DAMAGE 

  1. Double hull
  2. Flooding
  3. Ramming stability
  4. Calculations
  5. Permeability
  6. Intact stability
  7. Submission of stability information

SCHEDULE 2 

HULL CONSTRUCTION STANDARDS

Design process and ice characteristics

  1. Definitions
  2. Waterlines
  3. Hull areas
  4. Skeg areas
  5. Bow area
  6. Bottom area
  7. Mid body/stern area
  8. Transition areas
  9. Class factors
  10. Design pressure
  11. Shell design pressure
  12. Shell plate thickness
  13. Framing design
  14. Load shape for framing
  15. Stiffener design pressure
  16. Brackets
  17. Span of members
  18. Transverse framing
  19. Longitudinal framing
  20. Oblique framing
  21. Shear area
  22. Plastic section modulus
  23. Local buckling of framing
  24. Tripping of framing
  25. Hull girder strength
  26. Ice-skegs
  27. Design loads for rudders
  28. Design loads for propeller nozzles
  29. Ice horns and other exterior appendages
  30. Steering systems
  31. Structural monitoring system
  32. Submisssion and approval of plans etc.
  33. Inspection and construction standards
  34. Maintenance of the strucure
  35. Maintenance of certification
  36. Design for accessibility

SCHEDULE 3

STRUCTURAL STEELS FOR CATEGORY SHIPS

  1. Interpretation
  2. Steel grades
  3. Plate orientation
  4. Welding
  5. Properties of the weld metal and heat affected zone

List of figures

Figure 1 - Illustration of damage patch
Figure 1 - Effective knuckles and reamers
Figure 2 - Hull areas
Figure 3 - Extent of flat of bottom
Figure 4 - End of ram line
Figure 5 - Extent of ice skeg
Figure 6 - Spacing and span of stiffening members
Figure 7 - Stiffener angles
Figure 8 - Nozzle definitions
Figure 1 - Areas for steel grades

List of tables

Table 1 - Arctic class equivalencies
Table 2 - Factors for hull areas
Table 3 - Graduation of hull area factors
Table 4 - Extent of transition areas
Table 5 - Class factors
Table 6 - Design pressure
Table 7 - Frame factors
Table 1 - Required steel grades

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