Tank ship, especially liquefied gas tank ship
Patent
·
OSTI ID:6924194
The new LNG tanker designed by West Germany's Dyckerhoff and Widmann AG is simpler and more economical than conventional LNG carriers and can be manufactured with improved efficiency of materials. The deck, bottom, and hull sides of the tanker are constructed of a monolithic massive slab or plate of reinforced concrete. This slab is reinforced partly by stressed and partly by nonstressed steel rods. The prestressed tendons running lengthwise with respect to the ship are unspliced. The nonstressed reinforcement operates alternately under compression and under tension, which in combination with the partially prestressed steel has the advantage that the thickness of the solid slabs can be adjusted to optimize section properties and minimize the quantities and the light weight of the ship. The tanker has two symmetrical, longitudinal chambers for tanks, and an intermediate space for their operating mechanisms. Transverse bulkheads forming the ends of the tanks are curved in two directions in the form, for example, of sections of hemispheres. Insulation is provided on the interior surface of the tank chambers and on both sides of the bulkheads.
- Assignee:
- Dyckerhoff and Widmann AG
- Patent Number(s):
- US 3977350
- OSTI ID:
- 6924194
- Country of Publication:
- United States
- Language:
- English
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