Oscillating marine platform connected via a shear device to a rigid base
US4968180A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1988 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Apr 22, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B2017/0073
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A marine platform comprising a deck supported by a tower composed of a rigid fixed structure of the jacket type anchored to the sea floor, an oscillating structure supported by and connected to the fixed structure by flexible piles anchored in the lower part of the fixed structure and arranged on the periphery of the oscillating structure, and by a shear device, the oscillating structure being equipped with a floater. In one embodiment the connection between the fixed and oscillating structures is located in a zone between 30 and 60% of the water depth from the water level. The shear device consisting of at least one set of pairs of structural elements placed obliquely or perpendicularly with respect to the axis of the tower between a lower part of the upper structure and an upper part of the lower structure or of the base and allowing transmission of shear forces and torsional moments between the two parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.