RULES FOR THE CLASSIFICATION AND
CONSTRUCTION OF SEAGOING STEEL SHIPS
PART 1. SEAGOING SHIPS
VOLUME II
RULES FOR HULL
2014 EDITION
RULES FOR THE CLASSIFICATION AND
CONSTRUCTION OF SEAGOING STEEL SHIPS
PART 1. SEAGOING SHIPS
VOLUME II
RULES FOR HULL
2014 EDITION
Biro Klasifikasi Indonesia
Jl. Yos Sudarso No. 38-49, Tanjung Priok
Jakarta 14320
www.klasifikasiindonesia.com
[email protected]
Copyright © 2014The following Guidelines come into force on 1
January 2014
Reproduction in whole or in part by any means, is subject to the permission in writing by Biro Klasifikasi
Indonesia Head Office
Foreword
Rules for Hull Volume II 2014 Edition amends Rules for Hull Volume II Edition 2013. Reference source of the rules are derived from IACS Unified Requirements and inputs from BKI Branch Offices and Technical Division BKI Head Office. The general description about this rules in every section describe below:
Section 1 General Definition
Section 2 Material
Section 3 Design Principles
Section 4 Design Load
Section 5 Longitudinal Strength Section 6-14 Scantling Calculation
Section 15 Strengthening for Navigation in Ice Section 16 Superstructure and Deckhouse
Section 17 Hatchways
Section 18 Equipment
Section 19 Welded Joints Section 20 Fatigue Strength Section 21 Hull Outfit
Section 22 Structural Fire Protection on Board Seagoing Ships
Section 23-34 Special Requirement for Ship Type (Bulk Carriers, Ore Carriers, Heavy Cargo Ships, Oil Tankers, Ships Carrying Dangerous Chemical in Bulk, Ships Carrying Liquefied Gases in Bulk, Tugs, Fishing Vessels, Passenger Ships, Ships for Sheltered Shallow Water Services, Barges, Pontoons, Dredgers, Special Rules Floating Docks, and Supply Vessels)
Section 35 Strengthening Against Collision
Section 36 Subdivision and Stability of Cargo Ships and Passanger Ships Section 37 Special Requirement for In-Water Surveys
Table of Contents
Page Foreword . . . . iii Table of Contents . . . . v Rules Amendment Notice . . . . xxv Section 1 - General, Definitions . . . . 1-1/10 A. Validity, Equivalence . . . 1-1/10 B. Restricted Service Ranges . . . 1-2/10 C. Ships for Special Services . . . 1-2/10 D. Accessibility . . . 1-2/10 E. Stability . . . 1-2/10 1. General . . . 1-2/10 2. Ships with proven damage stability . . . 1-2/10 3. Anti-heeling devices . . . 1-3/10 F. Vibrations and Noise . . . 1-3/10 1. Mechanical vibrations . . . 1-3/10 2. Noise . . . 1-3/10 G. Documents for Approval . . . 1-4/10 H. Definitions . . . 1-6/10 1. General . . . 1-6/10 2. Principal dimensions . . . 1-6/10 J. International Conventions and Codes . . . 1-7/10 K. Rounding-off Tolerances . . . 1-8/10 L. Regulations of National Administrations . . . 1-8/10 M. Computer Programs . . . 1-8/10 1. General . . . 1-8/10 2. General Programs . . . 1-8/10 N. Workmanship . . . 1-9/10 1. General . . . 1-9/10 1.l Requirements to be complied with by the manufacturer . . . 1-9/10 1.2 Quality control . . . 1-9/10 2. Structural details . . . 1-9/10 2.1 Details in manufacturing documents . . . 1-9/10 2.2 Cut-outs, plate edges . . . 1-9/10 2.3 Cold forming . . . 1-10/10 2.4 Assembly, alignment . . . 1-10/10 3. Corrosion protection . . . 1-10/10 Section 2 - Materials . . . . 2-1/10 A. General . . . 2-1/10 B. Hull Structural Steel for Plates and Sections . . . 2-1/10 1. Normal strength hull structural steel . . . 2-1/10 2. Higher strength hull structural steels . . . 2-1/10 3. Material selection for the hull . . . 2-2/10 4. Structural members which are stressed in direction of their thickness . . . 2-7/10 C. Forged Steel and Cast Steel . . . 2-7/10 D. Aluminium Alloys . . . 2-7/10 E. Austenitic Steels . . . 2-8/10 Section 3 - Design Principles . . . . 3-1/24 A. General . . . 3-1/24 1. Scope . . . 3-1/24 2. Permissible stresses and required sectional properties . . . 3-1/24 3. Plate panels subjected to lateral pressure . . . 3-1/24 4. Fatigue strength . . . 3-2/24 B. Upper and Lower Hull Flange . . . 3-2/24 C. Unsupported Span . . . 3-2/24
Page D. End Attachments . . . 3-3/24
1. Definitions . . . 3-3/24 2. Brackets . . . 3-3/24 3. Sniped ends of stiffeners . . . 3-4/24 4. Corrugated bulkhead elements . . . 3-4/24 E. Effective Breadth of Plating . . . 3-4/24 1. Frames and stiffeners . . . 3-4/24 2. Girders . . . 3-4/24 3. Cantilevers . . . 3-5/24 F. Proof of Buckling Strength . . . 3-5/24 1. Definitions . . . 3-5/24 2. Proof of single plate fields . . . 3-7/24 3. Proof of partial and total fields . . . 3-12/24 3.1 Longitudinal and transverse stiffeners . . . 3-12/24 3.2 Lateral buckling . . . 3-12/24 3.3 Torsional buckling . . . 3-15/24 G. Rigidity of Transverses and Girders . . . 3-17/24 H. Structural Details . . . 3-17/24 1. Longitudinal members . . . 3-17/24 2. Transverses and girders . . . 3-17/24 3. Knuckles (general) . . . 3-19/24 J. Evaluation of Notch Stresses . . . 3-20/24 K. Corrosion Additions . . . 3-22/24 L. Additional Stresses in Asymmetric Sections . . . 3-23/24 1. Additional stresses for fatique strength analysis . . . 3-23/24 2. Correction of section modulus . . . 3-23/24 Section 4 - Design Loads . . . . 4-1/10 A. General, Definitions . . . 4-1/10 1. General . . . 4-1/10 2. Definitions . . . 4-1/10 2.1 Load centre . . . 4-1/10 2.2 Definition of symbols . . . 4-1/10 B. External Sea Loads . . . 4-2/10 1. Load on weather decks . . . 4-2/10 2. Load on ship's sides and of bow and stern structures . . . 4-3/10 2.1 Load on ship's sides . . . 4-3/10 2.2 Load on bow structures . . . 4-3/10 2.3 Load on stern structures . . . 4-4/10 3. Load on the ship's bottom . . . 4-4/10 4. Design bottom slamming pressure . . . 4-4/10 5. Load on decks of superstructures and deckhouses . . . 4-5/10 C. Cargo Loads, Load on Accommodation Decks . . . 4-6/10 1. Load on cargo decks . . . 4-6/10 2. Load on inner bottom . . . 4-6/10 3. Loads on accommodation and machinery decks . . . 4-7/10 D. Load on Tank Structures . . . 4-7/10 1. Design pressure for filled tanks . . . 4-7/10 2. Design pressure for partially filled tanks . . . 4-8/10 E. Design Values of Acceleration Components . . . 4-8/10 1. Acceleration components . . . 4-8/10 2. Combined acceleration . . . 4-9/10 Section 5 - Longitudinal Strength . . . . 5-1/27 A. General . . . 5-1/27 1. Scope . . . 5-1/27 2. Calculation Particulars . . . 5-1/27 3. Assumptions for calculation, loading conditions . . . 5-1/27 4. Loading guidance information . . . 5-1/27 4.1 General, definitions . . . 5-1/27 4.2 Conditions of approval of loading manuals . . . 5-2/27
Page 4.3 Conditions of approval of loading instruments . . . 5-2/27 4.4 Design cargo and ballast loading conditions . . . 5-3/27 4.5 Approval procedures of loading instruments . . . 5-5/27 4.6 Class maintenance of loading guidance information . . . 5-5/27 5. Definitions . . . 5-5/27 B. Loads on the Ship’s Hull . . . 5-6/27 1. General . . . 5-6/27 2. Still Water Loads . . . 5-7/27 2.1 General . . . 5-7/27 2.2 Guidance values for containerships with irregular loading . . . 5-7/27 3. Wave induced loads . . . 5-8/27 3.1 Vertical wave bending moments . . . 5-8/27 3.2 Vertical wave shear forces . . . 5-9/27 3.3 Horizontal bending moments . . . 5-10/27 3.4 Horizontal shear forces . . . 5-10/27 3.5 Torsional moments . . . 5-10/27 C. Section Moduli, Moments of Inertia, Shear and Buckling Strength . . . 5-11/27 1. Section moduli as a function of the longitudinal bending moments . . . 5-11/27 2. Minimum midship section modulus . . . 5-12/27 3. Midship section moment of inertia . . . 5-12/27 4. Calculation of section moduli . . . 5-12/27 5. Ships with multi-hatchways . . . 5-13/27 6. Shear strength . . . 5-14/27 7. Proof of buckling strength . . . 5-14/27 8. Ultimate load calculation of the ship's transverse sections . . . 5-14/27 D. Design Stresses . . . 5-19/27 1. General . . . 5-19/27 1.1 Buckling strength . . . 5-19/27 1.2 Permissible stresses . . . 5-20/27 1.3 Structural design . . . 5-20/27 2. Normal stresses in the ship's longitudinal direction . . . 5-21/27 2.1 Normal stresses from vertical bending moments . . . 5-21/27 2.2 Normal stresses due to horizontal bending moments . . . 5-21/27 2.3 Normal stresses from torsion of the ship's hull . . . 5-21/27 3. Shear stresses . . . 5-22/27 3.1 Shear stresses due to vertical shear forces . . . 5-22/27 3.2 Shear stresses due to horizontal shear forces . . . 5-23/27 3.3 Shear stresses due to torsional moments . . . 5-23/27 E. Permissible Still Water Loads . . . 5-23/27 1. Vertical bending moments . . . 5-23/27 2. Vertical shear forces . . . 5-24/27 3. Static torsional moments . . . 5-25/27 F. Guidance Values for Large Deck Openings . . . 5-25/27 1. General . . . 5-25/27 2. Guidance values for the determination of the section modulus . . . 5-25/27 3. Guidance values for the design of transverse box girders of container ships . . . 5-26/27 4. Guidance values for the displacements of the upper girder of the ship . . . 5-27/27 G. Bulk Carriers . . . 5-27/27 1. General . . . 5-27/27 2. Flooding criteria . . . 5-27/27 3. Flooding conditions . . . 5-27/27 Section 6 - Shell Plating . . . . 6-1/20 A. General, Definitions . . . 6-1/20 1. General . . . 6-1/20 2. Definitions . . . 6-1/20 B. Bottom Plating . . . 6-1/20 1. Plate thickness based on load stress criteria . . . 6-1/20 1.1 Ships with lengths L < 90 m . . . 6-1/20 1.2 Ships with length L > 90 m . . . 6-1/20
Page 2. Critical plate thickness, buckling strength . . . 6-2/20
2.1 Guidance values for critical plate thickness . . . 6-2/20 2.2 Buckling strength . . . 6-2/20 3. Minimum thickness . . . 6-2/20 4. Bilge strake . . . 6-2/20 5. Flat plate keel and garboard strake . . . 6-3/20 C. Side Shell Plating . . . 6-4/20 1. Plate thickness based on load stress criteria . . . 6-4/20 1.1 Ships with lengths L < 90 m . . . 6-4/20 1.2 Ships with lengths L 90 m . . . 6-4/20 2. Minimum thickness . . . 6-4/20 3. Sheerstrake . . . 6-5/20 4. Buckling strength . . . 6-5/20 5. Strengthenings for harbour and tug manoeuvres . . . 6-5/20 D. Side Plating of Superstructures . . . 6-6/20 E. Strengthening of Bottom Forward . . . 6-6/20 1. Arrangement of floors and girders . . . 6-6/20 2. Bottom plating forward of = 0,5 . . . 6-6/20 3. Stiffeners forward of . . . 6-6/20 F. Strengthenings in Way of Propellers and Propeller Shaft Brackets, Bilge Keels . . . 6-7/20 1. Strengthenings in way of propellers and propeller brackets . . . 6-7/20 2. Bilge keels . . . 6-7/20 G. Openings in the Shell Plating . . . 6-7/20 1. General . . . 6-7/20 2. Pipe connections at the shell plating . . . 6-8/20 H. Bow Doors and Inner Doors . . . 6-8/20 1. General, definitions . . . 6-8/20 1.1 Applicability . . . 6-8/20 1.2 Arrangement . . . 6-9/20 1.3 Definitions . . . 6-9/20 2. Strength criteria . . . 6-9/20 3. Design loads . . . 6-10/20 3.1 Bow doors . . . 6-10/20 3.2 Inner doors . . . 6-12/20 4. Scantlings of bow doors . . . 6-12/20 4.1 General . . . 6-12/20 4.2 Plating and secondary stiffeners . . . 6-12/20 4.3 Primary structure . . . 6-12/20 5. Scantlings of inner doors . . . 6-12/20 6. Securing and supporting of bow doors . . . 6-13/20 6.1 General . . . 6-13/20 6.2 Scantlings . . . 6-13/20 7. Arrangement of securing and locking devices . . . 6-14/20 7.1 Systems for operation . . . 6-14/20 7.2 Systems for indication/monitoring . . . 6-15/20 8. Operating and maintenance manual . . . 6-16/20 J. Side Shell Doors and Stern Doors . . . 6-16/20 1. General . . . 6-16/20 2. Arrangement . . . 6-16/20 3. Strength criteria . . . 6-17/20 4. Design loads . . . 6-17/20 5. Scantlings . . . 6-17/20 5.1 General . . . 6-17/20 5.2 Plating and secondary stiffeners . . . 6-18/20 5.3 Primary structure . . . 6-18/20 6. Securing and supporting of side shell and stern doors . . . 6-18/20 6.1 General . . . 6-18/20 6.2 Scantlings . . . 6-18/20 7. Arrangement of securing and locking devices . . . 6-18/20 7.1 Systems for operation . . . 6-18/20
Page 7.2 Systems for indication/monitoring . . . 6-18/20 8. Operating and maintenance manual . . . 6-18/20 K. Bulwarks . . . 6-19/20 Section 7 - Decks . . . . 7-1/9 A. Strength Deck . . . 7-1/9 1. General, Definition . . . 7-1/9 2. Connection between strength deck and sheerstrake . . . 7-1/9 3. Openings in the strength deck . . . 7-1/9 4. Scantlings of strength deck of ships up to 65 m in length . . . 7-5/9 5. Scantlings of strength deck of ships of more than 65 m in length . . . 7-5/9 6. Minimum thickness . . . 7-5/9 7. End thickness, thickness inside line of hatchways . . . 7-5/9 B. Lower Decks . . . 7-6/9 1. Thickness of decks for cargo loads . . . 7-6/9 2. Thickness of decks for wheel loading . . . 7-6/9 3. Machinery decks and accommodation decks . . . 7-7/9 C. Helicopter Decks . . . 7-7/9 1. General . . . 7-7/9 2. Design Load . . . 7-8/9 2.1 LC 1 . . . 7-8/9 2.2 LC 2 . . . 7-8/9 2.3 LC 3 . . . 7-8/9 3. Scantlings of structural members . . . 7-9/9 Section 8 - Bottom Structures . . . . 8-1/13 A. Single Bottom . . . 8-1/13 1. Floor plates . . . 8-1/13 1.1 General . . . 8-1/13 1.2 Scantlings . . . 8-1/13 2. Longitudinal girders . . . 8-2/13 2.1 General . . . 8-2/13 2.2 Scantlings . . . 8-2/13 B. Double Bottom . . . 8-2/13 1. General . . . 8-2/13 2. Centre girder . . . 8-3/13 2.1 Lightening holes . . . 8-3/13 2.2 Scantlings . . . 8-3/13 3. Side girders . . . 8-4/13 3.1 Arrangement . . . 8-4/13 3.2 Scantlings . . . 8-4/13 4. Inner bottom . . . 8-4/13 5. Double bottom tanks . . . 8-5/13 5.1 Scantlings . . . 8-5/13 5.2 Fuel and lubricating oil tanks . . . 8-5/13 5.3 Bilge wells . . . 8-5/13 5.4 Sea chests . . . 8-5/13 6. Double bottom, transverse framing system . . . 8-6/13 6.1 Plate floors . . . 8-6/13 6.2 Scantlings . . . 8-6/13 6.3 Watertight floors . . . 8-6/13 6.4 Bracket floors . . . 8-7/13 6.5 Brackets . . . 8-7/13 6.6 Struts . . . 8-7/13 7. Double bottom, longitudinal framing system . . . 8-7/13 7.1 General . . . 8-7/13 7.2 Bottom and inner bottom longitudinals . . . 8-7/13 7.3 Plate floors . . . 8-8/13 7.4 Brackets . . . 8-8/13 7.5 Longitudinal girder system . . . 8-8/13 8. Direct calculation of bottom structures . . . 8-8/13
Page 8.1 General, Definitions . . . 8-8/13 8.2 Design loads, permissible stresses . . . 8-9/13 8.3 Buckling strength . . . 8-9/13 9. Testing for tightness . . . 8-9/13 C. Bottom Structure in Machinery Spaces in Way of the Main Propulsion Plant . . . 8-10/13 1. Single bottom . . . 8-10/13 2. Double bottom . . . 8-10/13 2.1 General . . . 8-10/13 2.2 Plate floors . . . 8-10/13 2.3 Side girders . . . 8-10/13 2.4 Inner bottom . . . 8-11/13 3. Engine seating . . . 8-11/13 3.1 General . . . 8-11/13 3.2 Longitudinal girders . . . 8-11/13 D. Docking Calculation . . . 8-12/13 1. Simplified docking calculation . . . 8-12/13 2. Direct docking calculation . . . 8-13/13 3. Permissible stresses . . . 8-13/13 4. Buckling strength . . . 8-13/13 Section 9 - Framing System . . . . 9-1/12 A. Transverse Framing . . . 9-1/12 1. General . . . 9-1/12 1.1 Frame spacing . . . 9-1/12 1.2 Definitions . . . 9-1/12 2. Main frames . . . 9-2/12 2.1 Scantlings . . . 9-2/12 2.2 Frames in tanks . . . 9-2/12 2.3 End attachment . . . 9-3/12 3. 'Tween deck and superstructure frames . . . 9-3/12 3.1 General . . . 9-3/12 3.2 Scantlings . . . 9-3/12 3.3 End attachment . . . 9-3/12 4. Peak frames and frames in way of the stern . . . 9-3/12 4.1 Peak frames . . . 9-3/12 4.2 Frames in way of the stern . . . 9-4/12 5. Strengthenings in fore- and aft body . . . 9-4/12 5.1 General . . . 9-4/12 5.2 Tiers of beams . . . 9-4/12 5.3 Web frames and stringers . . . 9-4/12 5.4 Web frames and stringers in 'tween decks and superstructure decks . . . 9-5/12 5.5 Tripping brackets . . . 9-5/12 6. Web frames in machinery spaces . . . 9-6/12 6.1 Arrangement . . . 9-6/12 6.2 Scantlings . . . 9-6/12 B. Bottom, Side- and Deck Longitudinals, Side Transverses . . . 9-7/12 1. General . . . 9-7/12 2. Definitions . . . 9-7/12 3. Scantlings of longitudinals and longitudinal beams . . . 9-9/12 4. Side transverses . . . 9-12/12 5. Strengthenings in the fore and aft body . . . 9-12/12 Section 10 - Deck Beams and Supporting Deck Structures . . . . 10-1/5 A. General . . . 10-1/5 1. Definitions . . . 10-1/5 2. Permissible stresses . . . 10-1/5 3. Buckling strength . . . 10-2/5 B. Deck Beams and Girders . . . 10-2/5 1. Transverse deck beams and deck longitudinals . . . 10-2/5 2. Deck longitudinals in way of the upper and lower hull flange . . . 10-2/5 3. Attachment . . . 10-2/5
Page 4. Girders and transverses . . . 10-2/5 5. Supporting structure of windlasses and chain stoppers . . . 10-3/5 C. Pillars . . . 10-3/5 1. General . . . 10-3/5 2. Scantlings . . . 10-3/5 D. Cantilevers . . . 10-4/5 1. General . . . 10-4/5 2. Permissible stresses . . . 10-4/5 E. Hatchway Girders and Girders Forming Part of the Longitudinal Hull Structure . . . 10-5/5 Section 11 - Watertight Bulkheads . . . . 11-1/8 A. General . . . 11-1/8 1. Watertight subdivision . . . 11-1/8 2. Arrangement of watertight bulkheads . . . 11-1/8 2.1 Collision bulkhead . . . 11-1/8 2.2 Stern tube and remaining watertight bulkheads . . . 11-3/8 3. Openings in watertight bulkheads . . . 11-3/8 3.1 General . . . 11-3/8 3.2 Hinged doors . . . 11-3/8 3.3 Sliding doors . . . 11-3/8 3.4 Penetrations through watertight bulkheads . . . 11-4/8 B. Scantlings . . . 11-4/8 1. General, Definitions . . . 11-4/8 2. Bulkhead plating . . . 11-4/8 3. Stiffeners . . . 11-5/8 4. Corrugated bulkheads . . . 11-5/8 5. Primary Supporting Members . . . 11-6/8 5.1 General . . . 11-6/8 5.2 Load assumptions . . . 11-6/8 5.3 Strength criteria . . . 11-6/8 6. Watertight longitudinal structures . . . 11-8/8 C. Shaft Tunnels . . . 11-8/8 1. General . . . 11-8/8 2. Scantlings . . . 11-8/8 Section 12 - Tank Structures . . . . 12-1/10 A. General . . . 12-1/10 1. Subdivision of tanks . . . 12-1/10 2. Air, overflow and sounding pipes . . . 12-1/10 3. Forepeak tank . . . 12-1/10 4. Cross references . . . 12-1/10 5. Separation of fuel oil tanks from tanks for other liquids . . . 12-1/10 6. Tanks for heated liquids . . . 12-2/10 7. Minimum thickness . . . 12-2/10 8. Plating and stiffeners in the propeller area and in the engine room . . . 12-3/10 8.1 General . . . 12-3/10 8.2 Definitions . . . 12-3/10 8.3 Shell structures in propeller area . . . 12-3/10 8.4 Tank structures in propeller area . . . 12-3/10 8.5 Tank structures in main engine area . . . 12-4/10 B. Scantlings . . . 12-4/10 1. Definitions . . . 12-4/10 2. Plating . . . 12-5/10 3. Stiffeners and girders . . . 12-5/10 4. Corrugated bulkheads . . . 12-7/10 5. Thickness of clad plating . . . 12-7/10 C. Tanks with Large Lengths or Breadths . . . 12-7/10 1. General . . . 12-7/10 2. Hold spaces for ballast water . . . 12-8/10 D. Vegetable Oil Tanks . . . 12-8/10 E. Detached Tanks . . . 12-9/10
Page 1. General . . . 12-9/10 2. Scantlings . . . 12-9/10 F. Potable Water Tanks . . . 12-9/10 G. Swash Bulkheads . . . 12-9/10 H. Testing for Tightness . . . 12-10/10 Section 13 - Stem and Sternframe Structures . . . . 13-1/8 A. Definitions . . . 13-1/8 B. Stem . . . 13-1/8 1. Bar stem . . . 13-1/8 2. Plate stem and bulbous bows . . . 13-1/8 C. Sternframe . . . 13-1/8 1. General . . . 13-1/8 2. Propeller post . . . 13-2/8 3. Rudder post and rudder axle . . . 13-3/8 4. Sole piece . . . 13-4/8 5. Rudder horn of semi spade rudders . . . 13-5/8 D. Propeller Brackets . . . 13-7/8 E. Elastic Stern Tube . . . 13-7/8 1. Strength analysis . . . 13-7/8 1.1 Static load . . . 13-8/8 1.2 Dynamic load . . . 13-8/8 Section 14 Rudder and Manoeuvring Arrangement . . . . 14-1/21 A. General . . . 14-1/21 1. Manoeuvring arrangement . . . 14-1/21 2. Structural details . . . 14-1/21 3. Size of rudder area . . . 14-2/21 4. Materials . . . 14-2/21 5. Definitions . . . 14-3/21 B. Rudder Force and Torque . . . 14-4/21 1. Rudder force and torque for normal rudders . . . 14-4/21 2. Rudder force and torque for rudder blades with cut-outs (semi-spade rudders) . . . 14-5/21 C. Scantlings of the Rudder Stock . . . 14-6/21 1. Rudder stock diameter . . . 14-6/21 2. Strengthening of rudder stock . . . 14-7/21 3. Analysis . . . 14-7/21 3.1 General . . . 14-7/21 3.2 Data for the analysis . . . 14-7/21 3.3 Moments and forces to be evaluated . . . 14-10/21 4. Rudder trunk . . . 14-11/21 D. Rudder Couplings . . . 14-12/21 1. General . . . 14-12/21 2. Horizontal couplings . . . 14-12/21 3. Vertical couplings . . . 14-12/21 4. Cone couplings . . . 14-13/21 4.1 Cone couplings with key . . . 14-13/21 4.2 Cone couplings with special arrangements for mounting and dismounting the couplings 14-14/21 E. Rudder Body, Rudder Bearings . . . 14-16/21 1. Strength of rudder body . . . 14-16/21 2. Rudder plating . . . 14-17/21 2.1 Double plate rudders . . . 14-17/21 2.2 Single plate rudders . . . 14-18/21 2.2.1 Main piece diameter . . . 14-18/21 2.2.2 Blade thickness . . . 14-18/21 2.2.3 Arms . . . 14-18/21 3. Transmitting of the rudder torque . . . 14-18/21 4. Rudder bearings . . . 14-18/21 5. Pintles . . . 14-19/21 6. Guidance values for bearing clearances . . . 14-19/21 F. Design Yield Moment of Rudder Stock . . . 14-20/21
Page G. Stopper, Locking Device . . . 14-20/21 H. Propeller Nozzles . . . 14-20/21 1. General . . . 14-20/21 2. Design pressure . . . 14-20/21 3. Plate thickness . . . 14-21/21 4. Section modulus . . . 14-21/21 5. Welding . . . 14-21/21 Section 15 - Strengthening for Navigation in Ice . . . . 15-1/17 A. General . . . 15-1/17 1. Ice class notations . . . 15-1/17 2. Ice class draught for Ships with Notations ES1-ES4 . . . 15-2/17 3. Propulsion machinery output for ships with Notations ES1-ES4 . . . 15-2/17 4. Definitions for ships notations ES1-ES4 . . . 15-5/17 B. Requirements for the Notations ES1 – ES4 . . . 15-7/17 1. General . . . 15-7/17 2. Ice loads . . . 15-8/17 3. Thickness of shell plating in the ice belt . . . 15-9/17 4. Frames, ice stringers, web frames . . . 15-10/17 4.1 General . . . 15-10/17 4.2 Transverse frames . . . 15-10/17 4.3 Longitudinal frames . . . 15-12/17 4.4 Ice stringers . . . 15-12/17 4.5 Web frames . . . 15-13/17 5. Stem . . . 15-15/17 6. Arrangements for towing . . . 15-16/17 7. Stern . . . 15-16/17 8. Bilge keels . . . 15-16/17 9. Rudder and steering gear . . . 15-16/17 C. Requirements for the Ice Class Notation ES . . . 15-17/17 1. Shell plating within the ice belt . . . 15-17/17 2. Frames . . . 15-17/17 3. Stem . . . 15-17/17 Section 16 - Superstructures and Deckhouses . . . . 16-1/10 A. General . . . 16-1/10 1. Definitions . . . 16-1/10 2. Arrangement of superstructure . . . 16-1/10 3. Strengthenings at the ends of superstructures . . . 16-1/10 4. Transverse structure of superstructures and deckhouses . . . 16-2/10 5. Openings in closed superstructures . . . 16-2/10 6. Recommendations regarding deckhouse vibration . . . 16-2/10 B. Side Plating and Decks of Non-Effective Superstructures . . . 16-2/10 1. Side plating . . . 16-2/10 2. Deck plating . . . 16-3/10 3. Deck beams, supporting deck structure, frames . . . 16-3/10 C. Superstructure End Bulkheads and Deckhouse Walls . . . 16-3/10 1. General . . . 16-3/10 2. Definitions . . . 16-3/10 3. Scantlings . . . 16-5/10 3.1 Stiffeners . . . 16-5/10 3.2 Plate thickness . . . 16-5/10 D. Decks of Short Deckhouses . . . 16-5/10 1. Plating . . . 16-5/10 2. Deck beams . . . 16-5/10 E. Elastic Mounting of Deckhouses . . . 16-6/10 1. General . . . 16-6/10 2. Design loads . . . 16-6/10 2.1 Weight . . . 16-6/10 2.2 Water pressure and wind pressure . . . 16-7/10
Page 2.3 Load on the deckhouse bottom . . . 16-7/10 2.4 Load on deck beams and girders . . . 16-7/10 3. Load cases . . . 16-7/10 4. Scantlings of rails, mounting elements and substructures . . . 16-8/10 4.1 General . . . 16-8/10 4.2 Permissible stresses . . . 16-8/10 5. Corrosion Addition . . . 16-9/10 F. Breakwater . . . 16-9/10 1. Arrangement . . . 16-9/10 2. Dimensions of the breakwater . . . 16-9/10 3. Cutouts . . . 16-10/10 4. Loads . . . 16-10/10 5. Plate thickness and stiffeners . . . 16-10/10 6. Primary supporting members . . . 16-10/10 7. Proof of buckling strength . . . 16-10/10 Section 17 - Hatchways . . . . 17-1/20 A. General . . . 17-1/20 1. Hatchways on freeboard and superstructure decks . . . 17-1/20 2. Hatchways on lower decks and within superstructures . . . 17-1/20 3. Definitions . . . 17-1/20 B. Hatch Covers . . . 17-2/20 1. Design loads . . . 17-2/20 1.1 Load case A . . . 17-2/20 1.2 Load case B . . . 17-2/20 1.3 Load case C . . . 17-3/20 1.4 Load case D . . . 17-4/20 1.5 Load case E . . . 17-5/20 1.6 Load case F . . . 17-5/20 1.7 Horizontal mass forces . . . 17-5/20 2. Permissible stresses and deflections . . . 17-5/20 3. Strength calculation for hatch covers . . . 17-5/20 3.1 General . . . 17-5/20 3.2 Hatch cover supports . . . 17-6/20 3.3 Strength calculations for beam and girder grillages . . . 17-6/20 3.4 FEM calculations . . . 17-6/20 4. Scantlings . . . 17-6/20 4.1 Hatch cover plating . . . 17-6/20 4.1.1 Top plating . . . 17-6/20 4.1.2 Lower plating of pontoon hatch covers and box girders . . . 17-7/20 4.2 Main girders . . . 17-7/20 4.3 Edge girders . . . 17-7/20 4.4 Hatch cover stiffeners . . . 17-7/20 4.5 Hatch cover supports . . . 17-8/20 4.6 Locking and securing of hatch covers . . . 17-9/20 4.7 Hatch cover stoppers . . . 17-9/20 4.8 Cantilevers, load transmitting elements . . . 17-10/20 4.9 Container seatings on hatch covers . . . 17-10/20 5. Weathertightness of hatch covers . . . 17-10/20 5.1 Packing material . . . 17-10/20 5.2 Non-weathertightness hatch covers . . . 17-10/20 5.3 Drainage arrangements . . . 17-11/20 5.4 Tightness test, trials . . . 17-11/20 6. Wooden hatchway covers & hatchway beams . . . 17-12/20 6.1 Hatchway covers . . . 17-12/20 6.2. Hatchway beams . . . 17-12/20 6.2.1 General . . . 17-12/20 6.2.2 Scantlings . . . 17-12/20 6.3. Moments of inertia, section moduli, shear areas . . . 17-13/20 6.4 Arrangement and securing of hatchway beams . . . 17-13/20
Page 7. Sealing and Securing Arrangements of Wooden and Non Self Tightening Pontoon Hatchway
Covering . . . 17-14/20 C. Hatch Cover Coamings and Girders . . . 17-14/20 1. General . . . 17-14/20 2. Scantlings . . . 17-15/20 2.1 Plating . . . 17-15/20 2.2 Coaming stays . . . 17-15/20 2.3 Horizontal stiffeners . . . 17-15/20 D. Smaller Opening and Hatches . . . 17-16/20 1. Miscellaneous openings in freeboard and superstructure decks . . . 17-16/20 2. Strength and securing of small hatches on the exposed fore deck . . . 17-16/20 2.1 General . . . 17-16/20 2.2 Application . . . 17-16/20 2.3 Strength . . . 17-17/20 2.4 Primary securing devices . . . 17-17/20 2.5 Requirements for primary securing . . . 17-17/20 2.6 Secondary securing device . . . 17-18/20 E. Engine and Boiler Room Hatchways . . . 17-18/20 1. Deck openings . . . 17-18/20 2. Engine and boiler room casings . . . 17-18/20 3. Doors in engine and boiler room casings . . . 17-19/20 Section 18 - Equipment . . . . 18-1/10 A. General . . . 18-1/10 B. Equipment Numeral . . . 18-1/10 C. Anchors . . . 18-2/10 D. Chain Cables . . . 18-3/10 E. Chain Locker . . . 18-4/10 F. Mooring Equipment . . . 18-5/10 1. Ropes . . . 18-5/10 2. Shipboard fittings (mooring bollards and bitts, fairleads, stand rollers, chocks) . . . 18-6/10 3. Supporting hull structure for mooring equipment . . . 18-6/10 4. Corrosion addition . . . 18-7/10 5. Equipment for mooring at single point moorings . . . 18-7/10 G. Towing Equipment . . . 18-8/10 H. Towing and Mooring Arrangements Plan . . . 18-9/10 Section 19 - Welded Joints . . . . 19-1/20 A. General . . . 19-1/20 1. Information contained in manufacturing documents . . . 19-1/20 2. Materials, weldability . . . 19-1/20 3. Manufacture and testing . . . 19-1/20 B. Design . . . 19-2/20 1. General design principles . . . 19-2/20 2. Design details . . . 19-2/20 2.1 Stress flow, transitions . . . 19-2/20 2.2 Local clustering of welds, minimum spacing . . . 19-3/20 2.3 Welding cut-outs . . . 19-3/20 2.4 Local reinforcements, doubling plates . . . 19-3/20 2.5 Intersecting members, stress in the thickness direction . . . 19-4/20 2.6 Welding of cold formed sections, bending radii . . . 19-4/20 2.7 Build - up welds on rudderstocks and pintles . . . 19-5/20 3. Weld shapes and dimensions . . . 19-5/20 3.1 Butt joints . . . 19-5/20 3.2 Corner, T and double-T (cruciform) joints . . . 19-6/20 3.3 Fillet weld connections . . . 19-8/20 4. Welded joints of particular components . . . 19-10/20 4.1 Welds at the ends of girders and stiffeners . . . 19-10/20 4.2 Joints between section ends and plates . . . 19-11/20 4.3 Welded shaft bracket joints . . . 19-11/20 4.4 Rudder coupling flanges . . . 19-12/20
Page C. Stress Analysis . . . 19-14/20
1. General analysis of fillet weld stresses . . . 19-14/20 1.1 Definition of stresses . . . 19-14/20 1.2 Definitions . . . 19-14/20 2. Determination of stresses . . . 19-14/20 2.1 Fillet welds stressed by normal and shear forces . . . 19-14/20 2.2 Fillet weld joints stressed by bending moments and shear forces . . . 19-16/20 2.3 Fillet welded joints stressed by bending and torsional moments and shear forces . . . 19-16/20 2.4 Continuous fillet welded joints between web and flange of bending girders . . . 19-17/20 2.5 Intermittent fillet weld joints between web and flange of bending girders . . . 19-17/20 2.6 Fillet weld connections on overlapped profile joints . . . 19-17/20 2.7 Bracket joints . . . 19-18/20 2.8 Permissible stresses . . . 19-18/20 Section 20 - Fatigue Strength . . . . 20-1/21 A. General . . . 20-1/21 1. Definitions . . . 20-1/21 2. Scope . . . 20-2/21 3. Quality requirements (fabrication tolerances) . . . 20-4/21 B. Fatigue Strength Analysis for Free Plate Edges and for Welded Joints Using Detail Classification . 20-5/21 1. Definition of nominal stress and detail Classification for welded joints . . . 20-5/21 2. Permissible stress range for standard stress range spectra or calculation of the cumulative
damage ratio . . . 20-5/21 3. Design S-N Curves . . . 20-6/21 3.1 Description of the design S-N curves . . . 20-6/21 3.2 Correction of the reference value of the design S-N curve . . . 20-7/21 C. Fatigue Strength Analysis for Welded Joints Based on Local Stresses . . . 20-10/21 Section 21 - Hull Outfit . . . . 21-1/21 A. Partition Bulkheads . . . 21-1/21 1. General . . . 21-1/21 2. Partition bulkheads between engine and boiler rooms . . . 21-1/21 2.1 General . . . 21-1/21 2.2 Scantlings . . . 21-1/21 B. Ceiling . . . 21-1/21 1. Bottom ceiling . . . 21-1/21 2. Side ceiling, ceiling at tank bulkheads . . . 21-2/21 C. Side Scuttles, Windows and Skylights . . . 21-2/21 1. General . . . 21-2/21 2. Design Load . . . 21-3/21 3. Frames . . . 21-3/21 4. Glass panes . . . 21-3/21 5. Tests . . . 21-4/21 D. Scuppers, Sanitary Discharges and Freeing Ports . . . 21-4/21 1. Scuppers and sanitary discharges . . . 21-4/21 2. Freeing ports . . . 21-4/21 E. Air Pipes, Overflow Pipes, Sounding Pipes . . . 21-5/21 F. Ventilators . . . 21-8/21 1. General . . . 21-8/21 2. Closing appliances . . . 21-9/21 G. Stowage of Containers . . . 21-9/21 1. General . . . 21-9/21 2. Load assumptions . . . 21-9/21 3. Permissible stresses . . . 21-10/21 H. Lashing Arrangements . . . 21-10/21 J. Car Decks . . . 21-10/21 1. General . . . 21-10/21 2. Design loads . . . 21-10/21 3. Plating . . . 21-11/21 4. Permissible stresses . . . 21-11/21 5. Permissible deflection . . . 21-11/21
Page 6. Buckling . . . 21-12/21 K. Life Saving Appliances . . . 21-12/21 L. Signal and Radar Masts . . . 21-12/21 1. General . . . 21-12/21 2. Single tubular masts . . . 21-12/21 2.1 Stayed masts . . . 21-12/21 2.2 Unstayed masts . . . 21-13/21 3. Box girder and frame work masts . . . 21-13/21 4. Structural details . . . 21-13/21 M. Loading and Lifting Gear . . . 21-14/21 N. Access to Cargo Area of Oil Tankers and Bulk Carriers . . . 21-14/21 1. Safe access to cargo holds, cargo tanks, ballast tanks and other spaces . . . 21-14/21 2. Definitions . . . 21-14/21 3. Technical provisions . . . 21-15/21 4. Ship structure access manual . . . 21-21/21 O. Guard - Rails . . . 21-21/21 P. Access to Ships . . . 21-21/21 Section 22 - Structural Fire Protection on Board Seagoing Ships . . . . 22-1/49 A. General . . . 22-1/49 B. Regulations on Fire Protection for Passenger Ships carrying more than 36 Passengers . . . 22-2/49 1. Materials . . . 22-2/49 2. Main vertical zones and horizontal zones . . . 22-2/49 3. Bulkheads within main vertical zones . . . 22-2/49 4. Fire integrity of bulkheads and decks . . . 22-3/49 5. Protection of stairways and lifts in accommodation and service spaces . . . 22-7/49 6. Openings in "A" class divisions . . . 22-8/49 7. Openings in "B" class divisions . . . 22-9/49 8. Windows and sidescuttles . . . 22-10/49 9. Ventilation systems . . . 22-10/49 10. Restriction of combustible materials . . . 22-13/49 11. Details of construction . . . 22-14/49 12. Means of escape . . . 22-15/49 13. Fixed fire detection and fire alarm systems and automatic sprinkler, fire detection and fire
alarm systems . . . 22-18/49 14. Protection of vehicle, special category and ro-ro spaces . . . 22-18/49 15. Special arrangements in machinery spaces of category A . . . 22-19/49 16. Special requirements for ships carrying dangerous goods . . . 22-20/49 C. Regulations on Fire Protection for Passenger Ships carrying not more than 36 Passengers . . . 22-20/49 1. Materials . . . 22-20/49 2. Main vertical zones and horizontal zones . . . 22-20/49 3. Bulkheads within main vertical zones . . . 22-21/49 4. Fire integrity of bulkheads and decks . . . 22-21/49 5. Protection of stairways and lifts in accommodation and service spaces . . . 22-24/49 6. Openings in "A" class divisions . . . 22-24/49 7. Openings in "B" class divisions . . . 22-26/49 8. Windows and side scuttles . . . 22-27/49 9. Ventilation systems . . . 22-27/49 10. Restriction of combustible materials . . . 22-29/49 11. Details of construction . . . 22-30/49 12. Means of escape . . . 22-30/49 13. Fixed fire detection and fire alarm systems and automatic sprinkler, fire detection and fire
alarm systems . . . 22-32/49 14. Protection of vehicle, special category and ro-ro spaces . . . 22-32/49 15. Special arrangements in machinery spaces of category A . . . 22-33/49 16. Special requirements for ships carrying dangerous goods . . . 22-34/49 D. Regulations on Fire Protection for Cargo Ships of 500 GT and over . . . 22-34/49 1. Materials . . . 22-34/49 2. Accommodation and service spaces . . . 22-35/49 3. Bulkheads within the accommodation and service spaces . . . 22-35/49
Page 4. Fire integrity of bulkheads and decks . . . 22-35/49 5. Protection of stairways and lift trunks in accommodation spaces, service spaces and control
stations . . . 22-38/49 6. Openings in fire resisting divisions . . . 22-38/49 7. Ventilation systems . . . 22-39/49 8. Restricted use of combustible materials . . . 22-40/49 9. Details of construction . . . 22-41/49 10. Fixed fire detection and fire alarm systems, automatic sprinkler, fire detection and fire alarm
systems . . . 22-41/49 11. Means of escape . . . 22-41/49 12. Miscellaneous items . . . 22-43/49 13. Protection of cargo spaces . . . 22-43/49 14. Protection of vehicle and ro-ro spaces . . . 22-43/49 15. Special requirements for ships carrying dangerous goods . . . 22-43/49 E. Regulations on Fire Protection for Cargo Ships of less than 500 GT . . . 22-44/49 F. Regulations on Fire Protection for Oil Tankers of 500 GT and over . . . 22-44/49 1. Application . . . 22-44/49 2. Construction . . . 22-45/49 3. Structure, bulkheads within accommodation and service spaces and details of construction 22-45/49 4. Fire integrity of bulkheads and decks . . . 22-45/49 Section 23 - Bulk Carriers, Ore Carriers and Ships with Strengthenings for Bulk Cargo and Heavy
Cargo . . . . 23-1/27 A. Strengthenings for Bulk Cargo and Heavy Cargo . . . 23-1/27 1. General . . . 23-1/27 2. Double bottom . . . 23-1/27 3. Longitudinal strength . . . 23-1/27 B. Bulk Carriers . . . 23-1/27 1. General . . . 23-1/27 2. Longitudinal strength . . . 23-2/27 3. Definitions . . . 23-2/27 4. Scantlings of bottom structure . . . 23-2/27 5. Side Structures . . . 23-3/27 5.1 Side longitudinals, longitudinal stiffeners, main frames . . . 23-3/27 5.2 Main frames and end connection . . . 23-3/27 5.3 Minimum thickness of side shell plating . . . 23-4/27 5.4 Weld connections of frames and end brackets . . . 23-4/27 6. Topside tanks . . . 23-4/27 7. Transverses in the wing tanks . . . 23-4/27 8. Cargo hold bulkheads . . . 23-4/27 9. Hatchway coamings, longitudinal bulkheads . . . 23-6/27 10. Loading information for Bulk Carriers, Ore Carriers and Combination Carriers . . . 23-6/27 C. Ore Carriers . . . 23-7/27 1. General . . . 23-7/27 2. Double bottom . . . 23-8/27 3. Transverse and longitudinal bulkheads . . . 23-8/27 D. Allowable hold loading, considering flooding . . . 23-8/27 1. General . . . 23-8/27 2. Load model . . . 23-8/27 3. Shear capacity of the double bottom . . . 23-9/27 4. Allowable hold loading . . . 23-11/27 E. Evaluation of Scantlings of Corrugated Transverse Watertight Bulkheads in Bulk Carriers
Considering Hold Flooding . . . .
23-12/27 1. Application and definitions . . . 23-12/27 2. Load model . . . 23-12/27 2.1 General . . . 23-12/27 2.2 Bulkhead corrugation flooding head . . . 23-13/27 2.3 Pressure in the non-flooded bulk cargo loaded holds . . . 23-14/27 2.4 Pressure in the flooded holds . . . 23-14/27 2.5 Resultant pressure and force . . . 23-15/27
Page 3. Bending moment and shear force in the bulkhead corrugations . . . 23-17/27
3.1 Bending moment . . . 23-17/27 3.2 Shear force . . . 23-17/27 4. Strength criteria . . . 23-17/27 4.1 General . . . 23-17/27 4.1.1 Lower stool . . . 23-17/27 4.1.2 Upper stool . . . 23-18/27 4.1.3 Alignment . . . 23-18/27 4.2 Bending capacity and shear stress t . . . 23-18/27 4.3 Section modulus at the lower end of corrugations . . . 23-19/27 4.4 Section modulus of corrugations at cross-sections other than the lower end . . . 23-22/27 4.5 Allowable stress check . . . 23-22/27 4.6 Effective compression flange width and shear buckling check . . . 23-22/27 4.6.1 Effective width of the compression flange of corrugations . . . 23-22/27 4.6.2 Shear buckling . . . 23-22/27 4.7 Local net plate thickness . . . 23-22/27 5. Shedder and gussed plates . . . 23-23/27 6. Corrosion addition and steel renewal . . . 23-23/27 F. Harmonised Notations and Corresponding . . . 23-23/27 1. Application . . . 23-23/27 2. Harmonized notations and annotations . . . 23-23/27 2.1 Notations . . . 23-23/27 2.2 Additional Notations . . . 23-23/27 3. Design loading conditions (General) . . . 23-24/27 3.1 BC-C . . . 23-24/27 3.2 BC-B . . . 23-24/27 3.3 BC-A . . . 23-24/27 3.4 Ballast conditions (applicable to all Notations) . . . 23-24/27 3.4.1 Ballast tank capacity and disposition . . . 23-24/27 3.4.2 Strength requirements . . . 23-25/27 4. Departure and arrival conditions . . . 23-25/27 5. Design loading conditions (for local strength) . . . 23-25/27 5.1 Definitions . . . 23-25/27 5.2 General conditions applicable for all Notations . . . 23-25/27 5.3 Condition applicable for all Notations, except when Notation {no MP} is assigned . . . 23-25/27 5.4 Additional conditions applicable for BC-A Notation only . . . 23-26/27 5.5 Additional conditions applicable for ballast hold(s) only . . . 23-26/27 5.6 Additional conditions applicable during loading and unloading in harbour only . . . 23-26/27 5.7 Hold mass curves . . . 23-26/27 G. Fitting of Forecastle of Bulk Carrier, Ore Carriers and Combination Carriers . . . 23-27/27 1. Application . . . 23-27/27 2. Dimensions . . . 23-27/27 Section 24 - Oil Tankers . . . . 24-1/32 A. General . . . 24-1/32 1. Scope . . . 24-1/32 2. Character of Classification . . . 24-2/32 3. Cargo Tank Arrangement . . . 24-2/32 3.1 General . . . 24-2/32 3.2 Double hull requirements for oil tankers of 5.000 tdw and above . . . 24-3/32 3.3 Double hull requirements for oil tankers of less than 5.000 tdw . . . 24-4/32 3.4 Limitation of cargo tank length . . . 24-4/32 4. Ship Arrangement . . . 24-5/32 4.1 General . . . 24-5/32 4.2 Definitions . . . 24-5/32 4.3 Location and separation of spaces . . . 24-7/32 4.4 Arrangement of doors windows and air inlets . . . 24-8/32 4.5 Pipe tunnels in double bottoms . . . 24-8/32 4.6 Slop tanks . . . 24-8/32 5. Bow or stern loading and unloading arrangements . . . 24-9/32
Page 6. Superstructures . . . 24-10/32 7. Gangways, bulwarks . . . 24-10/32 8. Ventilators . . . 24-10/32 9. Anchor equipment . . . 24-11/32 10. Cathodic protection . . . 24-11/32 11. Aluminium paints . . . 24-11/32 12. Access to spaces in the cargo area . . . 24-11/32 13. Minimum thickness . . . 24-12/32 14. Corrosion protection . . . 24-13/32 15. Testing of cargo and ballast tanks . . . 24-13/32 B. Strength of Girders and Transverses in the Cargo Tank Area . . . 24-14/32 1. General . . . 24-14/32 2. Stress analysis . . . 24-14/32 2.1 Structural modeling . . . 24-14/32 2.2 Loads . . . 24-14/32 2.3 Permissible stresses . . . 24-16/32 2.3.1 Transverse members . . . 24-16/32 2.3.2 Longitudinal members . . . 24-16/32 2.4 Fatigue strength . . . 24-17/32 2.5 Cross ties . . . 24-17/32 C. Oiltight Longitudinal and Transverse Bulkheads . . . 24-17/32 1. Scantlings . . . 24-17/32 2. Cofferdam bulkheads . . . 24-17/32 D. Wash Bulkheads . . . 24-18/32 1. General . . . 24-18/32 2. Scantlings . . . 24-18/32 E. Hatches . . . 24-18/32 1. Tank hatches . . . 24-18/32 2. Other access arrangements . . . 24-18/32 F. Structural Details at the Ship's End . . . 24-18/32 1. General . . . 24-18/32 2. Fore body . . . 24-18/32 3. Aft body . . . 24-19/32 4. Emergency towing arrangements . . . 24-19/32 4.1 Purpose . . . 24-19/32 4.2 Requirements for the arrangements and components . . . 24-19/32 4.2.1 General . . . 24-19/32 4.2.2 Documents to be submitted . . . 24-19/32 4.2.3 Strength of the towing components . . . 24-19/32 4.2.4 Length of towing pennant . . . 24-20/32 4.2.5 Location of strongpoint and fairlead . . . 24-20/32 4.2.6 Strongpoint . . . 24-20/32 4.2.7 Fairleads . . . 24-20/32 4.2.8 Chafing gear . . . 24-20/32 4.2.9 Towing connection . . . 24-20/32 4.2.10 Testing . . . 24-20/32 4.3 Ready availability of towing arrangements . . . 24-20/32 G. Ships for the Carriage of Dry Cargo or Oil in Bulk . . . 24-21/32 1. General . . . 24-21/32 2. Reinforcements . . . 24-21/32 3. Slop tanks . . . 24-21/32 H. Small Tankers . . . 24-22/32 l. General . . . 24-22/32 2. Girders and transverses . . . 24-22/32 3. Transverse framing . . . 24-22/32 4. Deck . . . 24-23/32 5. Shell plating . . . 24-23/32 J. Product List 1 . . . 24-24/32 K. Product List 2 . . . 24-25/32 L. Additional Requirements for Tankers in Shuttle Service . . . 24-26/32
Page 1. General requirements and instructions . . . 24-26/32
1.1 General . . . 24-26/32 1.2 Exemptions . . . 24-27/32 1.3 Notations affixed to the Character of Classification . . . 24-27/32 1.4 Definitions . . . 24-27/32 1.5 Documents for approval . . . 24-27/32 2. System requirements . . . 24-28/32 2.1 Requirements for Single Point Mooring (SPM) . . . 24-28/32 2.1.1 Bow chain stoppers and fairleads . . . 24-28/32 2.1.2 Bow loading arrangements . . . 24-29/32 2.1.3 Fire fighting arrangements . . . 24-29/32 2.1.4 Electrical equipment . . . 24-30/32 2.2 Requirements for Submerged Turret Loading (STL) . . . 24-30/32 2.3 Arrangement of forward spaces . . . 24-30/32 2.4 Functional requirements for bow and STL loading systems . . . 24-31/32 2.4.1 Control systems, communication . . . 24-31/32 2.4.2 Operation manual . . . 24-31/32 3. Surveys and tests . . . 24-32/32 3.1 Tests of components . . . 24-32/32 3.2 Tests after installation . . . 24-32/32 3.3 Periodical inspections . . . 24-32/32 Section 25 - Ships Carrying Dangerous Chemicals in Bulk . . . . 25-1/1 Section 26 - Ships Carrying Liquefied Gases in Bulk . . . . 26-1/1 Section 27 - Tugs . . . . 27-1/13 A. General . . . 27-1/13 1. Scope, application . . . 27-1/13 2. Classification, Notations . . . 27-1/13 3. Approval documents, documentation . . . 27-1/13 B. Hull Structures . . . 27-2/13 1. Scantlings, general . . . 27-2/13 2. Deck structure . . . 27-2/13 3. Fore body, bow structure . . . 27-2/13 4. Stern frame, bar keel . . . 27-2/13 5. Side structure . . . 27-2/13 6. Engine room casing, superstructures and deckhouses . . . 27-2/13 7. Foundations of towing gear . . . 27-3/13 8. Ice strengthening . . . 27-3/13 C. Towing Gear/Towing Arrangement . . . 27-3/13 1. General design requirements . . . 27-3/13 2. Definition of loads . . . 27-3/13 3. Towing hook and slip device . . . 27-4/13 4. Towropes . . . 27-4/13 5. Towing winches . . . 27-5/13 6. Testing . . . 27-6/13 D. Steering Gear/Steering Arrangement . . . 27-8/13 1. Steering stability . . . 27-8/13 2. Rudder movement . . . 27-8/13 3. Tugs operating as pusher units . . . 27-8/13 4. Special steering arrangements . . . 27-8/13 E. Anchoring/Mooring Equipment . . . 27-8/13 1. Equipment numeral . . . 27-8/13 2. General requirements . . . 27-9/13 3. Tugs operating as pusher units . . . 27-9/13 F. Weathertight Integrity and Stability . . . 27-9/13 1. Weather deck openings . . . 27-9/13 2. Stability . . . 27-9/13 G. Escape Routes and Safety Measures . . . 27-10/13 1. Engine room exit . . . 27-10/13
Page 2. Companionways . . . 27-10/13 3. Rudder compartment . . . 27-10/13 4. Access to bridge . . . 27-10/13 5. Safe handling of towing gear . . . 27-10/13 6. Fire safety . . . 27-10/13 H. Additional Requirements for Active Escort Tugs . . . 27-10/13 1. Scope, application . . . 27-10/13 2. Classification, Notations . . . 27-10/13 3. Characteristics of Active Escort Tugs . . . 27-10/13 4. Definitions . . . 27-11/13 5. Documentation . . . 27-11/13 6. Arrangement and design . . . 27-11/13 7. Stability of Active Escort Tugs . . . 27-12/13 8. Full Scale Trials . . . 27-13/13 Section 28 - Fishing Vessels . . . . 28-1/1 Section 29 - Passenger Ships . . . . 29-1/4 I. Passenger Ships . . . 29-1/4 A. General . . . 29-1/4 B. Documents for Approval . . . 29-1/4 C. Watertight Subdivision . . . 29-1/4 D. Double Bottom . . . 29-1/4 E. Openings in the Shell Plating . . . 29-1/4 F. Materials for Closures of Openings . . . 29-2/4 G. Cross-Flooding Arrangements . . . 29-2/4 H. Pipe Lines . . . 29-2/4 II. Special Purpose Ships . . . 29-3/4 A. General . . . 29-3/4 1. Application . . . 29-3/4 2. Structural Fire Protection . . . 29-3/4 3. Character of Classification . . . 29-3/4 B. Documents for Approval . . . 29-3/4 C. Watertight Subdivision . . . 29-3/4 Section 30 - Ships for Sheltered Shallow Water Service . . . . 30-1/3 A. General . . . 30-1/3 B. Shell Plating . . . 30-1/3 C. Watertight Bulkheads and Tank Bulkheads . . . 30-1/3 D. Deck Openings . . . 30-2/3 1. Hatchways . . . 30-2/3 2. Casings, companionways . . . 30-2/3 E. Equipment . . . 30-3/3 Section 31 - Barges and Pontoons . . . . 31-1/4 A. General . . . 31-1/4 1. Definitions . . . 31-1/4 2. Validity . . . 31-1/4 3. Character of Classification . . . 31-1/4 4. General indication . . . 31-1/4 5. Deck cargo load . . . 31-1/4 B. Longitudinal Strength . . . 31-1/4 C. Watertight Bulkheads and Tank Bulkheads . . . 31-2/4 D. Structural Details at the Ends . . . 31-2/4 E. Rudder . . . 31-2/4 F. Pushing and Towing Devices, Connecting Elements . . . 31-2/4 G. Equipment . . . 31-3/4 H. Cargo Retaining Arrangements of Deck Cargo Barge . . . 31-4/4 Section 32 - Dredgers . . . . 32-1/8 A. General . . . 32-1/8
Page B. Documents for Approval . . . 32-1/8 C. Principal Dimensions . . . 32-2/8 D. Longitudinal Strength . . . 32-2/8 E. Shell Plating . . . 32-2/8 F. Deck . . . 32-2/8 G. Bottom Structure . . . 32-3/8 1. Single bottom transversely framed . . . 32-3/8 2. Single bottom longitudinally framed . . . 32-3/8 3. Double bottom . . . 32-4/8 H. Hopper and Well Construction . . . 32-4/8 J. Box Keel . . . 32-5/8 K. Stern Frame and Rudder . . . 32-6/8 L. Bulwark, Overflow Arrangements . . . 32-6/8 M. Self-Unloading Barges . . . 32-6/8 N. Equipment . . . 32-7/8 Section 33 - Special Rules of Floating Docks . . . . 33-1/1 Section 34 - Supply Vessels . . . . 34-1/3 A. General . . . 34-1/3 1. Application, character of classification . . . 34-1/3 2. Stability, floatability in damaged condition . . . 34-1/3 B. Shell Plating, Frames . . . 34-1/3 1. Shell plating . . . 34-1/3 2. Frames . . . 34-2/3 C. Weather Deck . . . 34-2/3 D. Superstructures and Deckhouses . . . 34-2/3 E. Access to Spaces . . . 34-2/3 l. Access to the machinery space . . . 34-2/3 2. Access to spaces below the exposed cargo deck . . . 34-3/3 F. Equipment . . . 34-3/3 Section 35 - Strengthening Against Collisions . . . . 35-1/5 A. General . . . 35-1/5 B. Calculation of the Deformation Energy . . . 35-1/5 C. Computation of the Critical Speed . . . 35-4/5 Section 36 - Subdivision and Stability of Cargo Ships and Passenger Ships . . . . 36-1/4 A. General . . . 36-1/4 1. Application . . . 36-1/4 2. Character of Classification . . . 36-1/4 3. Documents for approval . . . 36-1/4 B. Onboard Stability Information . . . 36-1/4 C. Double Bottom . . . 36-2/4 D. Watertight Bulkheads and Decks . . . 36-2/4 E. External Openings . . . 36-3/4 F. Cross-Flooding Arrangements . . . 36-3/4 Section 37 - Special Requirements for In-Water Surveys . . . . 37-1/2 A. General . . . 37-1/2 B. Special Arrangements for In-Water Surveys . . . 37-1/2 C. Documents for Approval, Trials . . . 37-1/2 Section 38 - Corrosion Protection . . . . 38-1/7 A. General Instructions . . . 38-1/7 1. Field of Application . . . 38-1/7 B. Shop Primers . . . 38-1/7 1. General . . . 38-1/7 2. Approvals . . . 38-1/7 C. Hollow Spaces . . . 38-2/7 1. General . . . 38-2/7 D. Combination of Materials . . . 38-2/7
Page 1. General . . . 38-2/7 E. Fitting-Out and Berthing Periods . . . 38-2/7 1. General . . . 38-2/7 F. Corrosion Protection of Ballast Water Tanks . . . 38-2/7 1. General . . . 38-2/7 2. Coatings . . . 38-2/7 3. Coatings combined with cathodic protection . . . 38-4/7 G. Corrosion Protection of Cargo Holds . . . 38-6/7 1. General . . . 38-6/7 2. Documentation . . . 38-6/7 H. Corrosion Protection of the Underwater Hull . . . 38-7/7 1. General . . . 38-7/7 2. Documentation . . . 38-7/7 Annex A . . . . A-1/3 I. Biro Klasifikasi Indonesia Freeboard Markings . . . A-1/3 II. Ice Class Draught Marking . . . A-3/3
Rules Amendment Notice
These pages contain amendment within he following Sections of the Rules for Classification and Surveys, 2014 Edition These amendment are effective from 1st January and 1st July 2014
Paragraph Title/ Subject Status/ Remarks
Section 1. General, Definitions
E. Stability
1. General To clarify the refferal criteria of intact stability
Section 2. Material
B. Hull Structural Steel for Plates and
Sections
Table 2.2 Material classes and grades for ships in general
To clarify new requirements of material classes and grades for ships
Table 2.3 Minimum material grades for ships excluding liquefied gas carriers covered in Table 2.4, with length exceeding 150m and single strength deck
To assert the definition of strength deck plate
Table 2.4 Minimum Material Grades for membrane type liquefied gas carriers with length exceeding 150m
Newly added
Fig. 2.1 Typical deck arrangement for membrane type Liquefied Natural Gas Carriers
Newly added
3.2 Material selection for longitudinal
structural members
To clarify minimum grade for sternframes supporting the rudder and propeller boss, rudders, rudder horns and shaft brackets
3.3 Material selection for local structural members
To clarify the definition of requirements
Section 21. Hull Outfit
E. AirPipes, Overflow Pipes, Sounding
Pipes
5.3.1 Applied loading for air pipes, ventilator pipes and their closing devices
To add new formula for velocity of water over the fore deck
Section 24. Oil Tanker
A. General
Section 1
General, Definitions
Note
Passages printed in italics generally contain recommendations and notes which are not part of the Classification Rules. Requirements quoted in extracts of statutory regulations, which are mandatory besides Classification, may also be printed in italics.
A. Validity, Equivalence
1. The Rules apply to seagoing steel ships classed A 100 whose breadth to depth ratio is within the range common for seagoing ships and the depth H of which is not less than:
L/16 for Unlimited Range of Service and P (Restricted Ocean Service) L/18 for L (Coasting Service)
L/19 for T (Sheltered Shallow Water Service).
Smaller depths may be accepted if proof is submitted of equal strength, rigidity and safety of the ship.
Hull structural design of bulk carriers with L $ 90 m contracted for construction on or after 1st April 2006, is to be carried out on the basis of the IACS Common Structural Rules for Bulk Carriers.
For bulk carriers not subject to the IACS Common Structural Rules the requirements in Section 23, are applicable. Accordingly for double hull oil tankers with L $ 150 m the IACS Common Structural Rules for Double Hull Oil Tankers are applicable from this date on. For these ships Section 24, A. is to be observed in addition.
Further rules relevant for hull structural design not covered by the IACS Common Structural Rules are issued by BKI in special companion volumes as complementary Rules to both IACS Common Structural Rules.
For bulk carriers and oil tankers below each individual length limit these BKI Rules continue to apply under particular consideration of Section 23 and Section 24.
2. Ships deviating from the Construction Rules in their types, equipment or in some of their parts may be classed, provided that their structures or equipment is found to be equivalent to BKI’s requirements for the respective class. 3. For Characters of Classification and Class Notations see Rules for Classification and Survey, Volume I, Section 2.
4. For ships suitable for in-water surveys which will be assigned the Class Notation “IW”, the requirements of Section 37, are to be observed.
5. Class Notations for ships subject to extended strength analysis
RSD Cargo hold analysis carried out by the designer and examined by BKI
RSD (F25) Fatigue assessment based on 6,25 · 107 load cycles of North Atlantic Spectrum carried out by BKI RSD (F30) Fatigue assessment based on 7,5 · 107 load cycles of North Atlantic Spectrum carried out by BKI Fatigue assessment will be carried out for all hatch opening corners on all deck levels, longitudinal frames and butt welds of deck plating and side shell plating (where applicable).
RSD (ACM) Additional corrosion margin according to detailed listings in the technical file. Analysis carried out by BKI. RSD (gFE) Global finite element analysis carried out in accordance with the Guidelines for Global Strength Analysis
B. Restricted Service Ranges
1. For determining the scantlings of the longitudinal and transverse structures of ships intended to operate within one of the restricted service ranges P, L and T, the dynamic loads may be reduced as specified in Sections 4 and 5. 2. For the definition of the restricted service ranges P, L and T see Rules for Classification and Surveys, Volume I, Section 2,.C.3.1, Table 2.5
C. Ships for Special Services
When a ship is intended to carry special cargoes (e.g. logs) the loading, stowage and discharging of which may cause considerable stressing of structures in way of the cargo holds, such structures are to be investigated for their ability to withstand these loads.
D. Accessibility
1. All parts of the hull are to be accessible for survey and maintenance.
2. For safe access to the cargo area of oil tanker and bulk carriers see Section 21, N.
E. Stability
1. General
Ships with a length of 24 m and above will be assigned class only after it has been demonstrated that their intact stability is adequate for the service intended.
Adequate intact stability means compliance with standards laid down by the relevant Administration. BKI reserves the right to deviate there from, if required for special reasons, taking into account the ships' size and type. The level of intact stability for ships of all sizes in any case should not be less than that provided by IMO-Resolution 267(85) (Adoption of the international code on intact stability, 2008 (2008 IS Code)), unless special operational restrictions reflected in the Class Notation render this possible.
Part.B Chapter 2.3 of the above Resolution has only to be taken into account on special advice of the competent Administration.
However, a preliminary stability information booklet approved by the Society in lieu of a final stability information booklet may be provided on-board for a specific period.
Special attention is to be paid to the effect of free surfaces of liquids in partly filled tanks. Special precautions shall be taken for tanks which, due to the geometry, may have excessive free surface moments, thus jeopardizing the initial stability of the vessel, e.g. tanks in the double bottom reaching from side to side. In general such tanks shall be avoided.
Evidence of approval by the competent Administration concerned may be accepted for the purpose of classification. The above provisions do not affect any intact stability requirements resulting from damage stability calculations, e.g. for ships to which the symbol is assigned.
2. Ships with proven damage stability
Ships with proven damage stability will be assigned the symbol . In the Register and in an appendix to the Certificate the proof of damage stability will be specified by a code as detailed in Rules for Classification and Surveys, Volume I, Section 2, C.2.1, Table 2.2
2.1 Damage stability requirements applicable to bulk carriers
2.1.1 Bulk carriers of 150 m in length and upwards of single side skin construction, designed to carry solid bulk cargoes having a density of 1000 kg/m3 and above shall, when loaded to the summer load line, be able to withstand flooding of any one cargo hold in all loading conditions and remain afloat in a satisfactory condition of equilibrium, as specified in the next 2.1.2.
Subject to the provisions of that paragraph, the condition of equilibrium after flooding shall satisfy the condition of equilibrium laid down in the annex to resolution A.320(IX), Regulation equivalent to regulation 27 of the International Convention on Load Lines, 1966, as amended by resolution A.514(13). The assumed flooding need only take into account flooding of the cargo hold space. The permeability of a loaded hold shall be assumed as 0,9 and the permeability of an empty hold shall be assumed as 0,95, unless a permeability relevant to a particular cargo is assumed for the volume of a flooded hold occupied by cargo and a permeability of 0,95 is assumed for the remaining empty volume of the hold.
Bulk carriers which have been assigned a reduced freeboard in compliance with the provisions of paragraph (8) of the regulation equivalent to regulation 27 of the International Convention on Load Lines, 1966, adopted by resolution A.320(IC), as amended by resolution A.514(13), may be considered as complying with paragraphs 2.1.1.
2.1.2 On bulk carriers which have been assigned reduced freeboard in compliance with the provisions of regulation 27(8) set out in Annex B of the Protocol of 1988 relating to the International Convention on Load Lines, 1966, the condition of equilibrium after flooding shall satisfy the relevant provisions of that Protocol.
2.1.3 Ships with assigned reduced freeboards intended to carry deck cargo shall be provided with a limiting GM or KG curve required by SOLAS Chapter II-1, Regulation 25-8, based on compliance with the probabilistic damage stability analysis of Part B-1 (see IACS Unified Interpretation LL 65).
3. Anti-heeling devices
3.1 If tanks are used as anti-heeling devices, effects of maximum possible tank moments on intact stability are to be checked. A respective proof has to be carried out for several draughts and taking maximum allowable centres of gravity resulting from the stability limit curve as a basis. In general the heeling angle shall not be more than 10°.
3.2 If the ship heels more than 10°, Rules for Machinery Installations, Volume III, Section 11, P.1.4 has to be observed.
3.3 All devices have to comply with Rules for Electrical Installations, Volume IV, Section 7, G.
F. Vibrations and Noise Notes
1. Mechanical vibrations
Operating conditions which are encountered most frequently should be kept free as far as possible from resonance vibrations of the ship hull and individual structural components. Therefore, the exciting forces coming from the propulsion plant and pressure fluctuations should be limited as far as possible. Beside the selection of the propulsion units particular attention is to be given to the ship's lines including the stern post, as well as to the minimization of possible cavitation. In the shaping of the bow of large ships, consideration is to be given to limit excitation from the seaway. As far as critical excitation loads cannot be eliminated, appropriate measures are to be taken on the basis of theoretical investigations at an early design stage. Fatigue considerations must be included. For machinery, equipment and other installations the vibration level is to be kept below that specified in Rules for Machinery Installations, Volume III, Section 1, as far as possible. The evaluation of vibrations in living and working areas should follow ISO 6954 except where other national or international rules or standards are mandatory. It is recommended to use the lower transition curve of ISO 6954 as a criteria for design, whereas the upper curve may serve for the evaluation of vibration measurements.
2. Noise
Suitable precautions are to be taken to keep noises as low as possible particularly in the crew's quarters, working spaces, passengers' accommodations etc.
G. Documents for Approval
1. To ensure conformity with the Rules the following drawings and documents are to be submitted in triplicate1)2) showing the arrangement and the scantlings of structural members :
1.1 Midship section
The cross sectional plans (midship section, other typical sections) shall contain all necessary data on the scantlings of the longitudinal and transverse hull structure as well as details of anchor and mooring equipment.
1.2 Longitudinal section
The plan of longitudinal sections shall contain all necessary details on the scantlings of the longitudinal and transverse hull structure and on the location of the watertight bulkheads and the deck supporting structures arrangement of superstructures and deck houses, as well as supporting structures of cargo masts, cranes etc.
1.3 Decks
Plans of the decks showing the scantlings of the deck structures, length and breadth of cargo hatches, openings above the engine and boiler room, and other deck openings. On each deck, it has to be stated which deck load caused by cargo is to be assumed in determining the scantlings of the decks and their supports. Furthermore, details on possible loads caused by fork lift trucks and containers are to be stated.
1.4 Shell
Drawings of shell expansion, containing full details on the location and size of the openings and drawings of the sea chests. 1.5 Ice strengthening
The drawings listed in 1.1 - 1.4, 1.6, 1.7 and 1.9 shall contain all necessary details on ice strengthening. 1.6 Bulkheads
Drawings of the transverse, longitudinal and wash bulkheads and of all tank boundaries, with details on densities of liquids, heights of overflow pipes and set pressures of the pressure-vacuum relief valves (if any).
1.7 Bottom structure
1.7.1 Drawings of single and double bottom showing the arrangement of the transverse and longitudinal girders as well as the water and oiltight subdivision of the double bottom. For bulk and ore carriers, data are to be stated on the maximum load on the inner bottom.
1.7.2 Docking plan and docking calculation according to Section 8, D. are to be submitted for information.
1.8 Engine and boiler seatings
Drawings of the engine and boiler seatings, the bottom structure under the seatings and of the transverse structures in the engine room, with details on fastening of the engine foundation plate to the seating, as well as type and output of engine. 1.9 Stem and stern post, and rudder
Drawings of stem and stern post, of rudder, including rudder support. The rudder drawings shall contain details on the ship's speed, the bearing materials to be employed, and the ice strengthening.
Drawings of propeller brackets and shaft exits.
1.10 Hatchways
Drawings of hatchway construction and hatch covers.
The drawings of the hatch coamings shall contain all details, e.g., bearing pads with all relevant details regarding loads and substructures, including cut-outs for the fitting of equipment such as stoppers, securing devices etc. necessary for the
1)
A detailed list of documents to be submitted for approval will be provided upon request. 2)
operation of hatches.
The structural arrangement of stays and stiffeners and of their substructures shall be shown. 1.11 Longitudinal strength
All necessary documents for the calculation of bending moments, shear forces and, if necessary, torsional moments. This includes the mass distribution for the envisaged loading conditions and the distribution of section moduli and moduli of inertia over the ship's length.
Loading Guidance Information according to Section 5, A.4.
1.12 Materials
The drawings mentioned in 1.l n 1.10 and 1.15 shall contain details on the hull materials (e.g. hull structural steel grades, standards, material numbers). Where higher tensile steels or materials other than ordinary hull structural steels are used, drawings for possible repairs have to be placed on board.
1.13 Weld joints
The drawings listed in items 1.1 n 1.10 and 1.15 shall contain details on the welded joints e.g. weld shapes and dimensions and weld quality. For the relevant data for manufacturing and testing of welded joints see Rules for Welding, Volume VI. 1.14 Lashing and stowage devices
Drawings containing details on stowage and lashing of cargo (e.g. containers, car decks).
In the drawings the location of the connections and the appropriate substructures at the ship shall be shown in detail.
1.15 Substructures
Drawings of substructures below steering gears, windlasses and chain stoppers as well as masts and boat davits together with details on loads to be transmitted into structural elements.
1.16 Closing condition
For assessing the closing condition. details on closing appliances of all openings on the open deck in position 1 and 2 according to ICLL and in the shell, i e. hatchways, cargo ports, doors, windows and side scuttles, ventilators, erection openings, manholes, sanitary discharges and scuppers.
1.17 Watertight Integrity
Drawings containing the main- and local internal subdivision of the hull. Information about arrangements of watertight longitudinal- and transverse bulkheads, cargo hold entrances, air ventilation ducts, down- and crossflooding arrangements. 1.18 Intact stability
Analysis of an inclining experiment to be performed upon completion of newbuildings and/or conversions, for determining the light ship data.
Intact stability particulars containing all information required for calculation of stability in different loading conditions. For initial assignment of class to new buildings preliminary particulars will be acceptable.
1.19 Damage stability
Damage stability particulars containing all information required for establishing unequivocal condition for intact stability. A damage control plan with details on watertight subdivision, closable openings in watertight bulkheads as well as cross flooding arrangements and discharge openings.
1.20 Structural fire protection
In addition to the fire control and safety plan also drawings of the arrangement of divisions (insulation, A-, B- and C-divisions) including information regarding BKI-approval number.
Drawings of air conditioning and ventilation plants. 1.21 Special particulars for examination
necessary for judging the vessel's strength and safety.
1.21.2 Additional documents and drawings may be required, if deemed necessary.
1.21.3 Any deviations from approved drawings are subject to approval before work is commenced.
H. Definitions
1. General
Unless otherwise mentioned, the dimensions according to 2. and 3. are to be inserted [m] into the formulae stated in the following Sections.
2. Principal dimensions
2.1 Length L
The length L is the distance in metres, on the summer load waterline from the foreside of stem to the after side of the rudder post, or the centre of the rudder stock if there is no rudder post. L is not to be less than 96% and need not be greater than 97% of the extreme length of the summer load waterline. In ships with unusual stern and bow arrangement, the length L will be specially considered.
2.2 Length Lc (according to ICLL, MARPOL 73/ 78, IBC - Code and IGC - Code )
The length Lc is to be taken as 96 % of the total length on a waterline at 85 % of the least moulded depth Hc measured from the top of the keel, or as the length from the fore side of the stem to the axis of the rudder stock on that waterline, if that be greater. In ships designed with a rake of keel the waterline on which this length is measured shall be parallel to the designed waterline.
For the definition of the least moulded depth Hc see ICLL, Annex I, Chapter I, Regulation 3 (5). 2.3 Length L* (according to SOLAS 74 Chapter II-1, Reg 2)
The length L* of the ship is the length measured between perpendiculars taken at the extremities of the deepest subdivision load line.
2.4 Subdivision length Ls
Reference is made to the definition in SOLAS 74, Chapter II–1, Reg. 25 – 2.2.1 and in Section 36, B.4. 2.5 Forward perpendicular FP.
The forward perpendicular coincides with the foreside of the stem on the waterline on which the respective length L, Lc,
or L* is measured.
2.6 Breadth B
The breadth B is the greatest moulded breadth of the ship.
2.7 Depth H
The depth H is the vertical distance, at the middle of the length L, from the base line3) to top of the deck beam at side on the uppermost continuous deck.
In way of effective superstructures the depth H is to be measured up to the superstructure deck for determining the ship's scantlings.
2.8 Draught T
The draught T is the vertical distance at the middle of the length L from base line to freeboard marking for summer load waterline. Fo r ships with timber load line the draught T is to be measured up to the freeboard mark for timber load waterline.
3)