Hydraulic and earth engineering – Marine structure or fabrication thereof – With pivotal connection between work deck and base
Patent
1986-07-14
1987-09-29
Corbin, David H.
Hydraulic and earth engineering
Marine structure or fabrication thereof
With pivotal connection between work deck and base
405203, 405224, E02B 1700
Patent
active
046966013
ABSTRACT:
An articulated, compliant offshore structure having a base portion establishing a gravity-type foundation on the ocean bottom, a tower extending upward from the base portion and a deck seated on the tower a spaced distance above the ocean surface. The tower is secured to the base portion by an articulated joint which permits the tower and deck to undergo limited pivoting about the base. This provides compliancy in response to forces imposed on the structure by wind, waves and ocean currents. A set of tensioned members, preferably cables, are secured between anchorages on the base and at an elevated position on the tower to provide controlled resistance to pivoting of the tower. In the preferred embodiment the tower and base are concrete shell structures.
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Article, "Exxon Study Shows Compliant Pile Tower Cost Benefits", Maus, L. D. et al., Ocean Industry, Mar. 1986, pp. 20-25.
Article, "Compliant Jacket Challenges Deep Water with New Design", McFillivray, T. L. et al., Oil & Gas Journal, May 6, 1985, pp. 112-115.
Corbin David H.
Exxon Production Research Company
Phillips Richard F.
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