Common Structural Rules for
Bulk Carriers, January 2006

Background Document
CHAPTER 2 – GENERAL ARRANGEMENT DESIGNNOTE:- This TB is published to improve the transparency of CSRs and increase theunderstanding of CSRs in the industry.
- The content of the TB is not to be considered as requirements.
- This TB cannot be used to avoid any requirements in CSRs, and in cases
where this TB deviates from the Rules, the Rules have precedence.
- This TB provides the background for the first version (January 2006) of theCSRs, and is not subject to maintenance.

COMMON STRUCTURAL RULES FOR BULK CARRIERS − BACKGROUND DOCUMENT
PAGE 2 – CHAPTER 2: GENERAL ARRANGEMENT DESIGN© IACS - the International Association of Classification Societies and theInternational Association of Classification Societies Limited
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COMMON STRUCTURAL RULES FOR BULK CARRIERSCOMMON STRUCTURAL RULES FOR BULK CARRIERS − BACKGROUND DOCUMENT
PAGE 3 – CHAPTER 2: GENERAL ARRANGEMENT DESIGNTABLE OF CONTENTS:
SECTION 1 – SUBDIVISION ARRANGEMENT............................................................................... 5
1.

NUMBER AND ARRANGEMENT OF TRANSVERSE WATERTIGHT BULKHEADS ........... 5
1.1

2.

COLLISION BULKHEAD ........................................................................................................... 5
2.1

3.

Number of watertight bulkheads............................................................................................ 5
Arrangement of collision bulkhead......................................................................................... 5

AFTER PEAK, MACHINERY SPACE BULKHEADS AND STERN TUBES .............................. 5
3.1 ........................................................................................................................................................ 5

4.

NUMBER AND ARRANGEMENT OF TANK BULKHEADS.................................................... 6
4.1

5.

ARRANGEMENT OF TRANSVERSE WATERTIGHT BULKHEADS ...................................... 6
5.1

6.

Bulkheads in compartments intended for the carriage of liquid cargoes................................ 6
General .................................................................................................................................... 6

OPENINGS IN WATERTIGHT BULKHEADS .......................................................................... 6
6.1
6.2
6.3

General .................................................................................................................................... 6
Openings in the watertight bulkheads below the freeboard deck .......................................... 6
Openings in the bulkheads above the freeboard deck ............................................................ 7

SECTION 2 – COMPARTMENT ARRANGEMENT .......................................................................... 81.

DEFINITIONS ............................................................................................................................. 8
1.1
1.2

2.

COFFERDAM .............................................................................................................................. 8
2.1

3.

General .................................................................................................................................. 10

WATERTIGHT VENTILATORS AND TRUNKS..................................................................... 10
7.1

8.

General .................................................................................................................................... 9

SHAFT TUNNELS ..................................................................................................................... 10
6.1

7.

General .................................................................................................................................... 9

MINIMUM BOW HEIGHT ......................................................................................................... 9
5.1

6.

General .................................................................................................................................... 8

COMPARTMENT FORWARD OF THE COLLISION BULKHEAD.......................................... 9
4.1

5.

Cofferdam arrangement .......................................................................................................... 8

DOUBLE BOTTOMS................................................................................................................... 8
3.1

4.

Cofferdam ............................................................................................................................... 8
Machinery spaces of Category A............................................................................................. 8

General .................................................................................................................................. 10

FUEL OIL TANKS ..................................................................................................................... 10
8.1

General .................................................................................................................................. 10

SECTION 3 – ACCESS ARRANGEMENT........................................................................................ 111.

GENERAL.................................................................................................................................. 11
1.1
Means of access to cargo and other spaces............................................................................ 11
1.2 ...................................................................................................................................................... 11
1.3 ...................................................................................................................................................... 11

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PAGE 4 – CHAPTER 2: GENERAL ARRANGEMENT DESIGN2.

TECHNICAL PROVISIONS FOR MEANS OF ACCESS ......................................................... 11
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
2.13

3.

SHAFT TUNNELS ..................................................................................................................... 15
3.1

4.

Definitions ............................................................................................................................. 11
Permanent means of access ................................................................................................... 12
Construction of ladders ......................................................................................................... 12
Access through openings....................................................................................................... 13
Access ladders to cargo holds and other spaces .................................................................... 13
Access ladder to tanks ........................................................................................................... 13
Access to underdeck structure of cargo holds ....................................................................... 13
Access to double side skin tanks in double side bulk carriers............................................... 14
Access to vertical structures of cargo holds in single side bulk carriers................................ 14
Access to vertical structures of cargo holds in double side bulk carriers .............................. 14
Access to top side ballast tanks in single side bulk carriers .................................................. 14
Access to bilge hopper ballast tanks ...................................................................................... 15
Access to fore peak tanks....................................................................................................... 15
General .................................................................................................................................. 15

ACCESS TO STEERING GEAR COMPARTMENT ................................................................. 16
4.1

General .................................................................................................................................. 16

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PAGE 5 – CHAPTER 2: GENERAL ARRANGEMENT DESIGNSECTION 1 – SUBDIVISION ARRANGEMENT
1. NUMBER AND
BULKHEADSARRANGEMENTOF

TRANSVERSE

WATERTIGHT

1.1

Number of watertight bulkheads

1.1.1

General1.1.1.aThis regulation is based on 1.1.1, Sec. 1, Chapter 2, Part B, of the RINA Rules, and isrelated to Reg. II-1/11 of the SOLAS Convention.

1.1.2

Additional bulkheads

1.1.2.aThis is a regulation based on 1.1.2, Sec. 1, Chapter 2, Part B of the RINA Rules.

2. COLLISION BULKHEAD
2.1

Arrangement of collision bulkhead

2.1.1
2.1.1.a This regulation is according to 2.1.1, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/11.2 of the SOLAS Convention.

2.1.2
2.1.2.aThis regulation is according to 2.1.2, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/11.3 of the SOLAS Convention.

2.1.3
2.1.3.aThis regulation is according to 2.1.3, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on the first sentence in Reg. II-1/11.4 of the SOLAS Convention.

3. AFTER PEAK, MACHINERY SPACE BULKHEADS AND STERN TUBES
3.1
3.1.1

General3.1.1.aThis regulation is according to 3.1.1, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/11.8 of the SOLAS Convention, in principle. However, it
complies with the requirements for passenger ships of Reg. 11-1/10.7 of the SOLAS
Convention.

3.1.2

Sterntubes

3.1.2.aThis regulation is according to 3.1.2, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/11.9 of the SOLAS Convention.

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4. NUMBER AND ARRANGEMENT OF TANK BULKHEADS
4.1

Bulkheads in compartments intended for the carriage of liquid cargoes

4.1.1
4.1.1.aThis regulation is based on 4.1.1, Sec. 1, Chapter 2, Part B of the RINA Rules.

5. ARRANGEMENT OF TRANSVERSE WATERTIGHT BULKHEADS
5.1

General

5.1.1
5.1.1.aThis regulation is according to 5.1.2, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/14.2.1 of the SOLAS Convention.

6. OPENINGS IN WATERTIGHT BULKHEADS
6.1

General

6.1.1
6.1.1.aThis regulation is according to 6.1.1, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/25.9.1 of the SOLAS Convention, and on the IMO Resolution
A.684 (17).

6.1.2
6.1.2.aThis regulation is according to 6.1.2, Sec. 1, Chapter 2, Part B of the RINA Rules, andcomplies with the requirements for passenger ships of Reg. II-1/15.3.1.1 of the
SOLAS Convention.

6.1.3
6.1.3.aThis regulation is according to 6.1.3, Sec. 1, Chapter 2, Part B of the RINA Rules, andcomplies with the requirement for passenger ships of Reg. II-1/15.2 of the SOLAS
Convention.

6.1.4
6.1.4.aThis regulation is according to 6.1.4, Sec. 1, Chapter 2, Part B of the RINA Rules, andcomplies with the requirement for passenger ships of Reg. II-1/15.2 of the SOLAS
Convention.

6.1.5
6.1.5.a

6.2

This regulation is based on 6.1.5, Sec. 1, Chapter 2, Part B of the RINA Rules and on
IACS UR SC156.

Openings in the watertight bulkheads below the freeboard deck

6.2.1
6.2.1.aThis regulation is according to 6.2.1, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/25-9.2 of the SOLAS Convention.
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PAGE 7 – CHAPTER 2: GENERAL ARRANGEMENT DESIGN

6.2.2
6.2.2.aThis regulation is according to 6.2.2, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/25-9.3 of the SOLAS Convention.

6.2.3
6.2.3.aThis regulation is according to 6.2.3, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/25-9.4 of the SOLAS Convention.

6.2.4
6.2.4.aThis regulation is according to 6.2.4, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/25- 9.5 of the SOLAS Convention.

6.3

Openings in the bulkheads above the freeboard deck

6.3.1

General6.3.1.aThis regulation is based on 6.3.1, Sec. 1, Chapter 2, Part B, of the RINA Rules, and isrelated to Reg. II-1/25-6.1.1 of the SOLAS Convention.

6.3.2

Doors used while at sea

6.3.2.aThis regulation is according to 6.3.2, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/25-9.2 of the SOLAS Convention.

6.3.3

Doors normally closed at sea

6.3.3.aThis regulation is according to 6.3.3, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/25-9.3 of the SOLAS Convention.

6.3.4

Openings kept permanently closed at sea

6.3.4.aThis regulation is according to 6.3.4, Sec. 1, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/25- 9.5 of the SOLAS Convention.

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PAGE 8 – CHAPTER 2: GENERAL ARRANGEMENT DESIGNSECTION 2 – COMPARTMENT ARRANGEMENT
1. DEFINITIONS
1.1

Cofferdam

1.1.1
1.1.1.a

1.2

This regulation is based on the regulations of 2, Section 1, Chapter 2, Part A of the
RINA Rules.

Machinery spaces of Category A

1.2.1
1.2.1.aThis regulation is according to 1.2.1, Sec. 2, Chapter 2, Part B of the RINA Rules, andis based on Reg. II-1/3.31 of the SOLAS Convention.

2. COFFERDAM
2.1

Cofferdam arrangement

2.1.1.aThis regulation is based on 2.1.1, Sec. 2, Chapter 2, Part B of the RINA Rules.

2.1.2
2.1.2.aThis regulation is based on 2.1.2, Section 2, Chapter 2, Part B of the RINA Rules.

2.1.3
2.1.3.aThis regulation is based on the first sentence of 2.1.3, Section 2, Chapter 2, Part B of
the RINA Rules.

2.1.4
2.1.4.aThis regulation is based on 2.1.4, Section 2, Chapter 2, Part B of the RINA Rules.

3. DOUBLE BOTTOMS
3.1

General3.1.1.aThis regulation is according to 3.1.1, Sec. 2, Chapter 2, Part B, of the RINA Rules,
and is based on Reg. II-1/12-1.1 of the SOLAS Convention.

3.1.2
3.1.2.aThis regulation is according to 3.1.2, Sec. 2, Chapter 2, Part B, of the RINA Rules,
and is based on Reg. II-1/12-1.2 of the SOLAS Convention.

3.1.3
3.1.3.aThis regulation is according to 3.1.3, Sec. 2, Chapter 2, Part B, of the RINA Rules,
and is based on Reg. II-1/12-1.3 of the SOLAS Convention.

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PAGE 9 – CHAPTER 2: GENERAL ARRANGEMENT DESIGN

3.1.4
3.1.4.aThis regulation is according to 3.1.4, Sec. 2, Chapter 2, Part B, of the RINA Rules,
and is based on Reg. II-1/12-1.4 of the SOLAS Convention.

4. COMPARTMENT FORWARD OF THE COLLISION BULKHEAD
4.1

General

4.1.1
4.1.1.aThis regulation is according to 4.1.1, Sec. 2, Chapter 2, Part B, of the RINA Rules,
and is based on Reg. II-2/4-2.2.3.1 of the SOLAS Convention.

5. MINIMUM BOW HEIGHT
5.1

General

5.1.1
5.1.1.a

These regulations are according to Sec. 2, Chapter 2, Part B of the RINA Rules, andthey are based on Reg. 39 (1), (2), (3), (4)(a) and (4)(b) of the International
Convention on Load Lines (hereafter referred to as the "LL Convention").

5.1.2
5.1.2.a

These regulations are according to Sec. 2, Chapter 2, Part B of the RINA Rules, andthey are based on Reg. 39 (1), (2), (3), (4)(a) and (4)(b) of the International
Convention on Load Lines (hereafter referred to as the "LL Convention").

5.1.3
5.1.3.a

These regulations are according to Sec. 2, Chapter 2, Part B of the RINA Rules, andthey are based on Reg. 39 (1), (2), (3), (4)(a) and (4)(b) of the International
Convention on Load Lines (hereafter referred to as the "LL Convention").

5.1.4
5.1.4.a

These regulations are according to Sec. 2, Chapter 2, Part B of the RINA Rules, andthey are based on Reg. 39 (1), (2), (3), (4)(a) and (4)(b) of the International
Convention on Load Lines (hereafter referred to as the "LL Convention").

5.1.5
5.1.5.a

These regulations are according to Sec. 2, Chapter 2, Part B of the RINA Rules, andthey are based on Reg. 39 (1), (2), (3), (4)(a) and (4)(b) of the International
Convention on Load Lines (hereafter referred to as the "LL Convention").

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6. SHAFT TUNNELS
6.1

General

6.1.1
6.1.1.aThis regulation is according to 6.1.1, Sec. 2, Chapter 2, Part B, of the RINA Rules,
and complies with the regulation related to passenger ships in Reg. II-1/10-8 of the
SOLAS Convention.

7. WATERTIGHT VENTILATORS AND TRUNKS
7.1

General

7.1.1
7.1.1.aThis regulation is according to 7.1.1, Sec. 2, Chapter 2, Part B, of the RINA Rules,
and is based on the regulation at the end of Reg. II-1/19-1 of the SOLAS Convention.

8. FUEL OIL TANKS
8.1

General

8.1.1
8.1.1.aThis regulation is in accordance with Reg. II-2/4.2.2 of the SOLAS Convention.

8.1.2
8.1.2.aThis regulation is in accordance with Reg. II-2/4.2.2 of the SOLAS Convention.

8.1.3
8.1.3.aThis regulation is in accordance with Reg. II-2/4.2.2 of the SOLAS Convention.

8.1.4
8.1.4.a

These regulations are according to 8.1.4, Sec. 2, Chapter 2, Part B of the RINA Rules.

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PAGE 11 – CHAPTER 2: GENERAL ARRANGEMENT DESIGNSECTION 3 – ACCESS ARRANGEMENT
1. GENERAL
1.1

Means of access to cargo and other spaces

1.1.1
1.1.1.aThis regulation is in accordance with the SOLAS Convention.

1.1.2
1.1.2.aThis regulation is in accordance with the SOLAS Convention

1.1.3
1.1.3.aThis regulation is in accordance with the SOLAS Convention

1.2
1.2.1
1.2.1.aThis regulation is in accordance with the SOLAS Convention and with the related
IACS UI.

1.2.2
1.2.2.aThis regulation is in accordance with the SOLAS Convention

1.2.3
1.2.3.aThis regulation is in accordance with the SOLAS Convention

1.3
1.3.1
1.3.1.aThis regulation is in accordance with the SOLAS Convention and with the related
IACS UI.

1.3.2
1.3.2.aThis regulation is in accordance with the SOLAS Convention and with the related
IACS UI.

2. TECHNICAL PROVISIONS FOR MEANS OF ACCESS
2.1

Definitions

2.1.1

Rung

2.1.1.aThis regulation is in accordance with Reg. II-1/3-6 of the SOLAS Convention andthe IMO Resolution.

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PAGE 12 – CHAPTER 2: GENERAL ARRANGEMENT DESIGN

2.1.2

Tread

2.1.2.aThis regulation is in accordance with Reg. II-1/3-6 of the SOLAS Convention andthe IMO Resolution.

2.1.3

Flight of a ladder

2.1.3.aThis regulation is in accordance with Reg. II-1/3-6 of the SOLAS Convention andthe IMO Resolution.

2.1.4

Stringer

2.1.4.aThis regulation is in accordance with Reg. II-1/3-6 of the SOLAS Convention andthe IMO Resolution.

2.1.5

Vertical ladder

2.1.5.aThis regulation is in accordance with Reg. II-1/3-6 of the SOLAS Convention andthe IMO Resolution.

2.1.6

Overhead obstructions

2.1.6.aThis regulation is in accordance with Reg. II-1/3-6 of the SOLAS Convention andthe IMO Resolution.

2.1.7

Distance below deck head

2.1.7.aThis regulation is in accordance with Reg. II-1/3-6 of the SOLAS Convention andthe IMO Resolution.

2.1.8

Cross deck

2.1.8.aThis regulation is in accordance with Reg. II-1/3-6 of the SOLAS Convention andthe IMO Resolution.

2.2

Permanent means of access

2.2.1
2.2.1.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.2.2
2.2.2.aThis regulation is in accordance with the IMO Resolution MSC.158 (78) and with therelated IACS UI.

2.2.3
2.2.3.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.3

Construction of ladders

2.3.1

General2.3.1.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

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2.3.2

Inclined ladders

2.3.2.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.3.3

Vertical or spiral ladders

2.3.3.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.4

Access through openings

2.4.1

Access through horizontal opening, hatches or manholes

2.4.1.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.4.2

Access through vertical openings, or manholes

2.4.2.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.5

Access ladders to cargo holds and other spaces

2.5.1

General2.5.1.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.5.2
2.5.2.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.5.3
2.5.3.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.5.4
2.5.4.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.5.5
2.5.5.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.5.6
2.5.6.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.5.7
2.5.7.a

2.6This regulation is in accordance with the IMO Resolution MSC.158 (78).

Access ladder to tanks

2.6.1
2.6.1.a

2.7This regulation is in accordance with the IMO Resolution MSC.158 (78).

Access to underdeck structure of cargo holds

2.7.1
2.7.1.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).
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2.7.2
2.7.2.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.7.3
2.7.3.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.7.4
2.7.4.aThis regulation is in accordance with the IMO Resolution MSC.158 (78) and withrelated IACS UI.

2.7.5
2.7.5.a

2.8This regulation is in accordance with the IMO Resolution MSC.158 (78).

Access to double side skin tanks in double side bulk carriers

2.8.1
2.8.1.a2.9This regulation is in accordance with the IMO Resolution MSC.158 (78).

Access to vertical structures of cargo holds in single side bulk carriers

2.9.1
2.9.1.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.9.2
2.9.2.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.9.3
2.9.3.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.9.4
2.9.4.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.9.5
2.9.5.aThis regulation is in accordance with the IMO Resolution MSC.158 (78).

2.10 Access to vertical structures of cargo holds in double side bulk carriers
2.10.1
2.10.1.a This regulation is in accordance with the IMO Resolution MSC.158 (78).

2.11 Access to top side ballast tanks in single side bulk carriers
2.11.1
2.11.1.a This regulation is in accordance with the IMO Resolution MSC.158 (78).

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2.11.2
2.11.2.a This regulation is in accordance with the IMO Resolution MSC.158 (78).

2.11.32.11.3.a This regulation is in accordance with the IMO Resolution MSC.158 (78).

2.11.42.11.4.a This regulation is in accordance with the IMO Resolution MSC.158 (78).

2.12 Access to bilge hopper ballast tanks
2.12.12.12.1.a This regulation is in accordance with the IMO Resolution MSC.158 (78) and withrelated IACS UI.

2.12.22.12.2.a This regulation is in accordance with the IMO Resolution MSC.158 (78).

2.12.32.12.3.a This regulation is in accordance with the IMO Resolution MSC.158 (78).

2.13 Access to fore peak tanks
2.13.12.13.1.a This regulation is in accordance with the IMO Resolution MSC.158 (78).

2.13.22.13.2.a This regulation is in accordance with the IMO Resolution MSC.158 (78).

2.13.32.13.3.a This regulation is in accordance with the IMO Resolution MSC.158 (78).

3. SHAFT TUNNELS
3.1

General

3.1.1
3.1.1.aThis regulation is based on 4.1.1, Section 3, Chapter 2, Part B of the BV rules.

3.1.2
3.1.2.aThis regulation is according to 4.1.2, Sec. 3, Chapter 2, Part B of the BV Rules, andthey are related to Reg. II-2/13.4.3 of the SOLAS Convention.

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4. ACCESS TO STEERING GEAR COMPARTMENT
4.1

General

4.1.1
4.1.1.aThis regulation is according to 5.1.1, Sec. 3, Chapter 2, Part B of the BV Rules, and isbased on Reg. II-1/29.13.1 of the SOLAS Convention.

4.1.2
4.1.2.aThis regulation is according to 5.1.2, Sec. 3, Chapter 2, Part B of the BV Rules, and isbased on Reg. II-1/29.13.2 of the SOLAS Convention.

COMMON STRUCTURAL RULES FOR BULK CARRIERS