4.3.1 General
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4.3.1 General

  4.3.1.1 Tanks together with their supports and other fixtures should be designed taking into account proper combinations of the following loads:

  internal pressure
  external pressure
  dynamic loads due to the motions of the ship
  thermal loads
  sloshing loads
  loads corresponding to ship deflection
  tank and cargo weight with the corresponding reactions in way of supports
  insulation weight
  loads in way of towers and other attachments.

The extent to which these loads should be considered depends on the type of tank, and is more fully detailed in the following paragraphs.

  4.3.1.2 Account should be taken of the loads corresponding to the pressure test referred to in 4.10.

  4.3.1.3 Account should be taken of an increase of vapour pressure in harbour conditions referred to in 4.2.6.4.

  4.3.1.4 The tanks should be designed for the most unfavourable static heel angle within the range 0° to 30° without exceeding allowable stresses given in 4.5.1.


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