Section 4 Ship structure

4.1.1 The ship structure and hatch covers in way of fixed cargo securing fittings are to be strengthened as necessary, see Pt 3, Ch 14, 1.1 Application 1.1.2.

4.1.2 A breakwater may be required, see Pt 3, Ch 14, 1.1 Application 1.1.7.

4.2.1 The SWL of the fixed cargo securing fitting is to be used as the design load when approving the weld attachments and the support structure of the fixed cargo securing fitting.

4.2.2 For container securing arrangements, the design load when approving the weld attachment and supporting structure is to be calculated in accordance with Pt 3, Ch 14, 9 Strength of container securing arrangements.

4.2.3 When considering the loads, all expected directions of operation are to be taken into account.

4.2.4 Stresses induced in the weld attachments, supporting structure, cell guides and other structures serving as fixed cargo securing points, determined using the design loads as defined in Pt 3, Ch 14, 4.2 Strength 4.2.1 to Pt 3, Ch 14, 4.2 Strength 4.2.3, are not to exceed the permissible values given in Table 14.4.1 Permissible stress values.

4.2.5 Structural strength of container lashing bridges is to be assessed in accordance with the ShipRight SDA Procedure for the Assessment of Container Ship Lashing Bridge Structures.