Common Structural Rules - Common Structural Rules for Bulk Carriers and Oil Tankers, January 2019 - Part 1 General Hull Requirements - Chapter 6 Hull Local Scantling - Section 6 Primary Supporting Members and Pillars - 4 Pillars
4 Pillars
4.1 Pillars subjected to compressive axial load
4.1.1 Criteria
The maximum applied compressive axial load on a pillar, Fpill, in kN, is to be taken as the greatest value calculated for all applicable design load sets defined in Ch 6, Sec 2, [2], and is given by the following formula:
Fpill = Pba – sup
a – sup + Fpill – upr
where:
ba-sup : Mean breadth of area supported, in m.
a-sup : Mean length of area
supported, in m.
Fpill-upr : Axial load from pillar including axial load from pillars above, in kN, if any.
Apill-n50 : Net cross section area of the pillar, in cm2.
The buckling check of the pillar is to be performed according to Ch 8, Sec 4, [5.1], with σav in N/mm2, as defined in Ch 8, Sec 5, [3.1] given by:
4.2 Pillars subject to tensile axial load
4.2.1 Criteria
Pillars and PSM members subjected to tensile axial load are to satisfy the criteria given in [3.3.2].
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