Section 6 Additional items
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Construction and Classification of Floating Docks and Dock Gates, July 2022 - Part 2 Rules for construction - Chapter 1 Structures – Floating Docks - Section 6 Additional items

Section 6 Additional items

Parent topic: Chapter 1 Structures – Floating Docks

6.1 Air pipes under safety deck

6.1.1 The maximum draught of the dock may be controlled by fitting air pipes under the safety deck and/or the centre pontoons. The length of these pipes will be dependent on the extent of the cushion of air desired. The pipes are to be of substantial thickness and rigidly supported in place. See also Pt 5, Ch 12 Piping Design Requirements of the Rules for Ships.

6.2 Cranes

6.2.1 The structure of travelling cranes on the top deck is not included in LR’s survey unless specially desired. The all-up weight of cranes, and the arrangement of wheels and rails, are to be indicated on the plans, so that local strength requirements due to these loads may be taken into account. In particular, the buckling strength of the topside supporting hull structure must be shown to be adequate.

6.3 Manholes

6.3.1 Sufficient manholes are to be cut in the safety deck, pontoon deck, transverses and girders in pontoons to provide ventilation and access to all parts of the structure. The edges of the holes are to be smooth. Where covers are fitted to manholes by bolts, doubling rings are to be fitted to take the fastenings. Manhole covers which project above the surrounding plating, which are vulnerable to damage, are to be adequately protected.

6.4 Cofferdams

6.4.1 Compartments carrying oil are to be separated by cofferdams from those carrying fresh or feed water. Cofferdams are to be suitably ventilated.

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