Jacket type wind turbine foundation and methods for construction thereof
AssigneeLeicon ApS
InventorFrederik Rytter
Life of this patent
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Abstract
A jacket type wind turbine foundation (jacket) for supporting a wind turbine tower comprises a jacket support structure configured to transfer loads from the tower to the seabed. A transition piece constituting the top part of the jacket is configured to transfer the loads and weight of the tower to a jacket support structure, having legs supported by a bracing system of cross members. Each leg is bolted to the transition piece, which comprises one or more cast transition piece segments, a floor, a centrally arranged entrance configured to allow access to the transition piece for staff and/or equipment, and one connection portion for each leg. Each connection portion is attached to a leg at a joint arranged at a level below the level of the floor of the transition piece.
Claims20
A transition piece for a jacket type wind turbine foundation for supporting a wind turbine tower, the transition piece comprising:
- a top opening surrounded by a flange for joining the transition piece with a wind turbine tower;
- one or more walls extending away from the top opening and forming a cavity having a floor;
- an entrance in the floor permitting access to the cavity;
- and
- a plurality of connection portions each extending away from the floor and the top opening for joining with a leg of a jacket support structure;
- wherein the transition piece comprises a plurality of segments joined to one another along seams extending from the flange to the entrance.
A jacket type wind turbine foundation (jacket) for supporting a wind turbine tower, wherein the jacket comprises:
- a jacket support structure configured to transfer loads from the tower to a seabed, wherein the jacket support structure comprises legs supported by a bracing system built of cross members;
- and
- a transition piece constituting a top part of the jacket, wherein the transition piece is configured to transfer the loads and weight of the tower to the jacket support structure,
- wherein the legs are bolted to the transition piece, wherein the transition piece comprises:
- a top opening surrounded by a flange and one or more walls extending away from the top opening forming a cavity having a floor;
- a centrally arranged entrance arranged and configured to allow access to the transition piece for staff and/or equipment;
- and
- one connection portion for each of the legs, wherein each connection portion is attached to one of the legs by a joint,
- wherein the joint is arranged at a level below a level of the floor of the transition piece, wherein the transition piece comprises a plurality of transition piece segments joined to one another along seams extending from the flange to the entrance, wherein the entrance is an opening provided in the floor of the transition piece.
A method for constructing a jacket type wind turbine foundation (jacket) for supporting a wind turbine tower, wherein the method comprises:
- providing a jacket support structure configured to transfer loads from the tower to a seabed, wherein the jacket support structure comprises legs supported by a bracing system built of cross members;
- providing a transition piece constituting a top part of the jacket, wherein the transition piece is configured to transfer the loads and weight of the tower to the jacket support structure, the transition piece comprising:
- a top opening surrounded by a flange and one or more walls extending away from the top opening forming a cavity having a floor;
- a centrally arranged entrance arranged and configured to allow access to the transition piece;
- and
- one connection portion for each of the legs;
- and
- attaching each of the connection portions to one of the legs via a joint, wherein the joint is arranged at a level below a level of the floor of the transition piece, wherein the transition piece comprises a plurality of transition piece segments joined to one another along seams extending from the flange to the entrance, and wherein the entrance is an opening provided in the floor of the transition piece.
Dependencies are inferred from the claim text.