12.3 Uprights
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Statutory Documents - IMO Publications and Documents - International Codes - Grain Code - International Code for the Safe Carriage of Grain in Bulk – Resolution MSC.23(59) - Part A - Specific requirements - 12 Divisions loaded on both sides - 12.3 Uprights

12.3 Uprights

  .1 Steel uprights used to support divisions loaded on both sides shall have a section modulus given by

Where:
W = section modulus in cubic centimetres
a = horizontal span between uprights in metres.

The section modulus per metre span W 1 shall be not less than that given by the formula:

Where:
h 1 = is the vertical unsupported span in metres and shall be taken as the maximum value of the distance between any two adjacent stays or between a stay and either end of the upright. Where this distance is less than 2.4 m the respective modulus shall be calculated as if the actual value were 2.4 m.

  .2 The moduli of wood uprights shall be determined by multiplying by 12.5 the corresponding moduli for steel uprights. If other materials are used their moduli shall be at least that required for steel increased in proportion to the ratio of the permissible stresses for steel to that of the material used. In such cases attention shall be paid also to the relative rigidity of each upright to ensure that the deflection is not excessive.

  .3 The horizontal distance between uprights shall be such that the unsupported spans of the shifting boards do not exceed the maximum span specified in A 12.1.2.

Parent topic: 12 Divisions loaded on both sides
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