Page 148 - Ship Construction.DJ Eyres 6Ed

Ch14-H8070.fm Page 137 Wednesday, October 18, 2006 6:56 AM
Prefabrication 137

Wing tank/
deck unit

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Side shell
panel
assembly

Part transverse
bulkhead panel

ึ
Hopper side
unit งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี

FIGURE 14.1 Bulk carrier single shell side block unit

and equipment was fitted at the berth and after launching at the fitting out
quay. Piping systems, ventilation and the machinery units were fitted into
the erected hull as independent items. Likewise the accommodation spaces
were lined out and fitted with the furniture and other fittings in situ. Whilst
the production methods applied to the steelwork fabrication and erection
were time saving and cost-effective the haphazard and largely uncontrolled
methods of outfitting detracted from the overall production engineering of
the ship. Rather than plan outfit installation on a total ship system basis it
is today common practice to plan this work for zone installation, the zone
corresponding to a main compartment area which may be broken down into
blocks or smaller assemblies. Pre-outfitting of each assembly or block may
be of the order of 85–90 per cent. Both steelwork and outfit are highly