Clasification Society Rulefinder 2016 - Version 9.25
Clasification Society Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, January 2016 - Part 4 STEEL UNIT STRUCTURES - Chapter 5 Primary Hull Strength - Section 4 Buckling strength of primary members |
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![]() Section 4 Buckling strength of primary members4.1 Application4.1.1 The requirements of this Section are applicable to individual primary structural members which are subjected to axial compression or combined axial compression and bending due to overall loading. 4.2 Symbols4.2.1 The symbols used in this Section are defined as follows:
4.3 Elastic critical buckling stress4.3.1 Where the elastic critical buckling stress exceeds 50 per cent of the specified minimum yield stress of the material, the calculated critical buckling stresses are to be corrected for yielding effects and are given by:
4.4 Scantling criteria4.4.1 Individual members are to be investigated for overall critical buckling
in accordance with an agreed Code or Standard or Pt 4, Ch 5, 4.4 Scantling criteria 4.4.1 and Pt 4, Ch 5, 4.4 Scantling criteria 4.4.1 and also for local buckling.
Table 5.4.1 Overall member critical buckling stress
Table 5.4.2 Factors of safety for overall member buckling
4.4.2 The local buckling of cylindrical shells, either unstiffened or ring-stiffened, is to be investigated if the proportions of the shell conform to the following:
4.4.3 When individual primary structural members are subjected to axial compression or combined axial compression and bending, the computed design stresses are to satisfy the following requirement:
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