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 4 Hull Local Scantlings for Bulk Carriers L<150m - 2 Struts Connecting Stiffeners

2 Struts Connecting Stiffeners

2.1 Scantling requirements

2.1.1 Net sectional area and moment of inertia

The net sectional area ASR, in cm2, and the net moment of inertia ISR about the main axes, in cm4, of struts connecting stiffeners are not to be less than the values obtained from the following formulae:

where:

PSR : Pressure to be taken as the greater of the following values, in kN/m2:
  • PSR = 0.5 (PSR1 + PSR2)
  • PSR = PSR3

PSR1 : External pressure in way of the strut, in kN/m2, acting on one side, outside the compartment in which the strut is located.

PSR2 : External pressure in way of the strut, in kN/m2, acting on the opposite side, outside the compartment in which the strut is located.

PSR3 :Internal pressure at mid-span of the strut, in kN/m2, in the compartment in which the strut is located.

s : Spacing, in mm, of stiffeners, measured at mid-span along the chord.

ℓ : Span, in m, of stiffeners connected by the strut defined in Pt 1, Ch 3, Sec 7, [1.1.5].

ℓSR : Length of the strut, in m.

AASR : Actual net sectional area of the strut, in cm2.

Parent topic: Section 4 Hull Local Scantlings for Bulk Carriers L<150m
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