Wobben Properties Gmbh

Roy Kersten

Frank Knoop

Albrecht Brenner

René Mertens

Panos Papadopoulos

Rolf Coners

Britta Randel

Tim Janssen

Burkhard Voigt

Oliver Labs

Frank Pollmann

Steffen Röthel

Ronald Lange

Ludger Janssen

Hugo Rodrigo Beramendi Ortega

Steffen Rothel

Stefan Medoch

Steffen RÖTHEL

A method for pretensioning a tower of a wind power installation, comprising the steps: providing a tensioning device having an adapter element and/or a foundation arrangement and a tensioning element, and/or an adapter element and/or a foundation arrangement, fastening a lower end of a tensioning element a fastening means of the adapter element, fastening an upper end of a tensioning element to an upper end of the tower, tensioning the tensioning element at the lower end of the tensioning element and/or at the upper end of the tensioning element, wherein the tensioning of the tensioning element is effected by reduction of a clearance between the foundation and the adapter element.

Method for pretensioning a tower of a wind power plant

An annular bracket for the external tensioning of a tower segment, in particular a tower segment of a wind power plant, to an external tensioning system of a hybrid tower, preferably a hybrid tower of a wind power plant, to a tower section of a hybrid tower, preferably a hybrid tower of a wind power plant, to a hybrid tower, preferably a hybrid tower of a wind power plant, to a wind power plant, and to an assembly method of an external tensioning system for a hybrid tower, preferably for a hybrid tower of a wind power plant. An annular bracket for the external tensioning of a tower segment, in particular a tower segment of a wind power plant, with a connector element for the connection of a tensioning element, a bearing element for the transmission of a tensioning force to a tower segment, and an annular force transmission element for the transmission of the tensioning force between the connector element and the bearing element, the bearing element being at a greater spacing in the radial direction from a longitudinal axis of the annular bracket than the connector element, is described.

Annular bracket for externally loading a tower segment, external loading system of a hybrid tower, tower section of a hybrid tower, hybrid tower, wind turbine, and assembly method of an external loading system for a hybrid tower

A wind turbine steel tower ring segment, a wind turbine tower portion, a wind turbine tower, a wind turbine and a method for producing a wind turbine tower portion. A wind turbine steel tower ring segment for a wind turbine tower, comprising a shell segment with an extent in the direction of a segment height, of a segment ring direction and of a segment thickness and with a first horizontal joint side and a second horizontal joint side, a first vertical joint side and a second vertical joint side, wherein a first vertical flange is arranged at the first vertical joint side and/or a second vertical flange is arranged at the second vertical joint side, wherein the first vertical flange and/or the second vertical flange enclose(s) an angle with the shell segment, wherein at least one connection element for the arrangement of functional elements is formed on the first vertical flange and/or on the second vertical flange, wherein the connection element projects from the first vertical flange and/or the second vertical flange.

Wind turbine steel tower ring segment and method

A connecting element for inserting into a wind power installation tower segment. A wind power installation tower section and a wind power installation tower. A wind power installation and methods for connecting partial ring segments. The connecting element comprises a first side wall with a first opening which can be penetrated by a fastening element, and a second side wall lying opposite the first side wall with a second opening which can be penetrated by a fastening element, an upper transverse wall with two upper openings which can each be penetrated by a mounting fastening element, and a lower transverse wall lying opposite the upper transverse wall with two lower openings which can each be penetrated by a mounting fastening element; wherein the upper and lower transverse wall are arranged substantially orthogonally to the first and second side wall and connect said side walls.

Connecting element and methods for connecting partial ring segments

A rotating tower crane for erecting a wind turbine, having a tower and a tower substructure, which is connected to the tower and is intended for supporting the tower, wherein the tower substructure has a supporting cross frame, which has three or more, preferably four, legs, extending from the tower. It is proposed that each leg has fastened on it, on the ground side, a load-distributor plate, which is not connected to the foundation, wherein the load-distributor plates together form the ballast of the tower.

Tower crane for erecting a wind turbine, and method for erecting said tower crane

A device for guiding bracing cables in a tower of a wind turbine. The device comprises at least one guide bracket to be arranged in the tower between a tower wall and at least one of the bracing cables, such that the at least one bracing cable bears against the guide bracket and is thereby guided along the tower wall, and a bracket mount for attaching the guide bracket to the tower wall, wherein the position of the guide bracket in the circumferential direction of the tower along the bracket mount can be changed in order to match the position of the at least one bracing cable.

Tension cord guide in a wind turbine tower

A wind power installation foundation having a cylindrical central unit, a plurality of steel carriers which are arranged radially around the central unit and which respectively have a first and a second end, and a plurality of foundation piles. The first ends of the steel carriers are fixed to the central unit so that the second ends of the steel carriers are in the form of free ends. The second free ends of the steel carriers are respectively placed on one of the foundation piles.

Wind power plant foundation and wind power plant

The present invention concerns a forming process for hot forming of a steel sheet of a rotor blade to be produced of a wind power installation, including the steps heating the steel sheet in a furnace while the steel sheet is lying on a hearth bogie, displacing the heated steel sheet with the hearth bogie from the furnace into a pressing apparatus for the hot forming operation, transloading the heated steel sheet in the pressing apparatus from the hearth bogie on to a form bogie having a counterpart form, and pressing the steel sheet by at least one pressing punch which presses on the steel sheet in such a way that it is formed between the pressing punch and the counterpart form and in particular assumes the shape of the pressing punch and the counterpart form.

Forming process for hot forming a steel sheet of a rotor blade to be produced for a wind energy plant

There is provided a wind power installation pylon comprising a plurality of pylon segments which respectively have an upper and a lower horizontal flange. At least one of the plurality of the pylon segments has at least two longitudinal flanges. Each longitudinal flange has a first side for bearing against a first side of a further longitudinal flange and a second side to which the peripheral surface is welded, wherein the second side is opposite to the first side.

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Hohenwarthe, Germany

Roy Kersten