Clasification Society Rulefinder 2020 - Version 9.33 - Fix
Common Structural Rules - Common Structural Rules for Bulk Carriers and Oil Tankers, January 2019 - Part 2 Ship Types - Chapter 1 Bulk Carriers - Section 5 Cargo Hatch Covers - 3 Width of Attached Plating

3 Width of Attached Plating

3.1 Stiffeners

3.1.1 The width of the attached plating bp, in mm, to be considered for the check of stiffeners is to be taken as:

  • Where the attached plating extends on both sides of the stiffener:

    bp = s

  • Where the attached plating extends on one side of the stiffener:

    bp = 0.5 s

3.2 Primary supporting members

3.2.1 The effective breadth, in mm, of the attached plating to be considered for the yielding and buckling checks of primary supporting members analysed through isolated beam or grillage model is to be taken as:

  • Where the plating extends on both sides of the primary supporting member:

    bp = beff

  • Where the plating extends on one side of the primary supporting member:

    bp = 0.5beff

where:

beff : Effective breadth of attached plating, in m, as defined in Pt 1, Ch 3, Sec 7, [1.3.2].

For structural evaluations based on isolated beam or grillage models, the areas of stiffeners are not to be included in the idealisation of the attached plating of the primary members.

Parent topic: Section 5 Cargo Hatch Covers
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