The ships are built having a cellular construction at
the sides. Strong longitudinal box girders are formed port and starboard by the
upper deck – the second deck – top of the shell plating and top of the
longitudinal bulkhead. The upper deck and the sheer strake form the box girder.
These girders also provide stiffness against racking stresses and used as water
ballast tank spaces
A form of
bulkhead is fitted at intervals, centre to centre with water tight bulkheads
being fitted as required by the Rules. The bulkhead gives support to the double
bottom structure.
The
container guides consist of angle bars about 150mm x 150mm x 14mm thick
connected to vertical webs and adjoining structure spaced 2.6m apart. The
bottom of the guides is bolted to brackets welded to the tank top and beams.
The brackets are welded to doubling plates, which are welded to the tank top.
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