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The first, and thus far unique, cell-spar platform was Kerr-McGee's Red Hawk spar (7 ea. 8 m (26 ft) diameter cells). [6] Field-depletion occurred 4 years after production started, so Red Hawk was decommissioned in 2014 under the Bureau of Safety and Environmental Enforcement 's " Rigs-to-Reefs " program, at which time it was the deepest ...
A truss is an assembly of members such as beams, connected by nodes, that creates a rigid structure. [1] In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". [2]
To resist horizontal shear stress from either drag or engine thrust, the wing must also form a stiff cantilever in the horizontal plane. A single-spar design will usually be fitted with a second smaller drag-spar nearer the trailing edge, braced to the main spar via additional internal members or a stressed skin. The wing must also resist ...
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The Pauli truss is a variant of the lenticular truss, "with the top chord carefully shaped so that it has a constant force along the entire length of the truss." [ 19 ] It is named after Friedrich Augustus von Pauli [ de ] , whose 1857 railway bridge (the Großhesseloher Brücke [ de ] ) spanned the Isar near Munich .
A cantilever bridge is a bridge built using structures that project horizontally into space, supported on only one end (called cantilevers).For small footbridges, the cantilevers may be simple beams; however, large cantilever bridges designed to handle road or rail traffic use trusses built from structural steel, or box girders built from prestressed concrete.
The spar was upended in the fjord, after which the topsides were installed using the floatover technique. It was then towed vertically to the Aasta Hansteen gas field 300 kilometres (190 mi) off Bodø at the northwest coast of Norway. The spar is moored north of the Arctic Circle using polyester moorings to the seabed 1,200 metres (3,900 ft) below.
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