Clasification Society Rulefinder 2020 - Version 9.33 - Fix
Common Structural Rules - Common Structural Rules for Bulk Carriers and Oil Tankers, January 2019 - Part 1 General Hull Requirements - Chapter 13 Ship in Operation - Renewal Criteria - Section 2 Acceptance Criteria - 1 General

1 General

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.


Copyright 2020 Clasification Society, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasification Society, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasification Society'. Clasification Society Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasification Society entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.