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
- Application
- Equivalency with regulations
- Interpretation
- Ship categorization
- Requirements
- Documentation
- Responsibility of the owner and master
SCHEDULE 1
SUBDIVISION and CRITERIA FOR STABILITY AFTER DAMAGE
- Double hull
- Flooding
- Ramming stability
- Calculations
- Permeability
- Intact stability
- Submission of stability information
SCHEDULE 2
HULL CONSTRUCTION STANDARDS
Design process and ice characteristics
- Definitions
- Waterlines
- Hull areas
- Skeg areas
- Bow area
- Bottom area
- Mid body/stern area
- Transition areas
- Class factors
- Design pressure
- Shell design pressure
- Shell plate thickness
- Framing design
- Load shape for framing
- Stiffener design pressure
- Brackets
- Span of members
- Transverse framing
- Longitudinal framing
- Oblique framing
- Shear area
- Plastic section modulus
- Local buckling of framing
- Tripping of framing
- Hull girder strength
- Ice-skegs
- Design loads for rudders
- Design loads for propeller nozzles
- Ice horns and other exterior appendages
- Steering systems
- Structural monitoring system
- Submisssion and approval of plans etc.
- Inspection and construction standards
- Maintenance of the strucure
- Maintenance of certification
- Design for accessibility
SCHEDULE 3
STRUCTURAL STEELS FOR CATEGORY SHIPS
- Interpretation
- Steel grades
- Plate orientation
- Welding
- 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