New Low Weight, Low Cost Modules Delivered For North Sea Rig

The 96-berth 'E' module for the semisubmersible rig Polymariner was recently delivered after a construction period of only six months.

It is a four-level, 39.4-foot high block with a base area of 39.4 by 60 feet and weighing only 260 tons.

Low weight is inherent in the construction method developed by Trans Construction of Lillestrom, Norway, using corrugated steel walls as load-bearing members. A unit will weigh 50 to 70 percent less and cost one-third less than a steel unit of conventional construction.

Another low-weight Trans Construction unit for the same platform is a 47.9 by 30.2 foot helicopterlobby extension with arrival and departure halls, two briefing rooms, office and toilets.

Both modules were built at Marstrand and outfitted lying on barges by NSS Stalkonstruktion AB at Hunnebostrand on the Swedish west coast. Upon completion the modules were towed to Haugesund in Norway.

For further information about Trans Construction, Circle 119 on Reader Service Card

Maritime Reporter Magazine, page 59,  Mar 1992 Vickers Marine Engineering Division

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