Chapter 7 – Uprights
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Codes - 2011 TDC Code – Code of Safe Practice for Ships Carrying Timber Deck Cargoes, 2011 – Resolution A.1048(27) - Part B – Design of Cargo Securing Arrangements - Chapter 7 – Uprights

Chapter 7 – Uprights

  7.1 Longitudinally stowed round wood, loose sawn wood and sawn wood packages with limited racking strength should be supported by uprights at least as high as the stow.

  7.2 Uprights should be designed for the forces they have to take up according to the formulas in this section. The connection of uprights to the deck or hatch is to be to the satisfaction of the Administration. The design of high uprights especially should be such that the deflection is limited. Uprights may be complemented by different lashing arrangements.

Figure 6.9 Uprights for blocking over the entire height of the stow

  7.3 For vessels carrying loose sawn wood and round timber, the design bending moment per upright is calculated as the greater of the two moments given by the following formulas:

footnote
footnote

 If top-over lashings are applied in accordance with sections 5.4 or 6.5.28 – 6.5.30, the bending moment of the uprights may be reduced by 12%.

  7.4 The design bending moment per upright supporting timber packages is to be taken as the greatest of the three moments given by the following formulas:

where:
=

  7.5 If hog lashings are used, the required MSL of each hog lashing is calculated by the following formula:

  7.6 The design bending moment should not produce greater stress than 50% of the ultimate stress for the material in any part of the uprights.

Parent topic: Part B – Design of Cargo Securing Arrangements
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