1.1 Application
1.1.1
This section gives requirements for the application of the acceptance
criteria.
1.2 Definition
1.2.1 Deck zone
The deck zone includes all the following items contributing to the hull
girder strength:
- For bulk carriers: elements above or crossed by the 0.9 D level line above the
baseline such as:
- Strength deck plating.
- Deck stringer.
- Sheer strake.
- Side shell plating.
- Inner hull and other longitudinal bulkhead plating, if any.
- Topside tank sloped plating, including horizontal and vertical strakes.
- Longitudinal stiffeners, girders and stringers connected to the above
mentioned plating.
- For oil tankers:
- Strength deck plating.
- Deck stringer.
- Sheer strake.
- Inner hull and other longitudinal bulkheads upper most strake.
- Longitudinal stiffeners, girders and stringers connected to the above
mentioned plating.
1.2.2 Bottom zone
The bottom zone includes the following items contributing to the hull girder strength:
- For bulk carriers: elements up to the upper level of the hopper sloping plating
or up to and including the inner bottom plating if there is no hopper tank:
- Keel plate.
- Bottom plating.
- Bilge plating.
- Bottom girders.
- Inner bottom plating.
- Hopper tank sloping plating, and horizontal plating, if any.
- Longitudinal stiffeners connected to the above mentioned plating.
- Side shell plating.
- For oil tankers:
- Keel plate.
- Bottom plating.
- Bilge plating.
- Longitudinal bulkheads lower strake.
- Bottom girders.
- Longitudinal stiffeners connected to the above mentioned plating.
1.2.3 Neutral axis zone
The neutral axis zone includes the following items between the deck zone and the bottom
zone, as for example:
- Side shell plating.
- Inner hull plating and longitudinal bulkheads, if any.
- Topside tank sloped plating.
For the longitudinal strength members forming the web of the hull girder which are
inclined to the vertical, the area of the member to be included in the zone area is to
be based on the projected area onto the vertical plane.