Wobben Properties Gmbh

Wobben, Aloys

Olaf Stracke

Norbert Holscher

Gunther Horn

Norbert Hölscher

Ewald Freese

Günther Horn

Norbert Hoelscher

Provided is a method for manufacturing segments for a tower, in particular of a wind turbine, and a prestressed segment for a tower. Provided is tower ring for a tower, a tower of the wind turbine, and a wind turbine. In addition, a prestressing device is provided. The method for manufacturing segments for a tower, in particular of a wind turbine, comprises: arranging at least one prestressing element in a mold, wherein the prestressing element comprises or consists of fiber-reinforced plastic; tensioning the prestressing element; embedding the prestressing element in a concrete mass; hardening of the concrete mass into a longitudinal segment, preferably in the form of a complete longitudinal segment of a tower; removing the hardened longitudinal segment from the mold.

Method for manufacturing segments for a tower, prestressed segment, tower ring, tower, wind turbine, and prestressing device

The object is attained by a method of erecting a wind turbine tower having a plurality of tower segments which are tensioned by means of tensioning members. A plurality of tensioning members is provided and a fixing unit is fixed at an end of the tensioning members. Fixing of the fixing unit is effected by placing a multi-part wedge unit at a free end of the tensioning members which comprise a plurality of tensioning wires. A sleeve is fitted over the wedge unit and a pulling tab is fixed on or at the sleeve. The pulling tab has an opening. A cable is fixed at or in the hole in the pulling tab. The cable with the fixing unit and thus the tensioning members is pulled upwardly. The fixing unit is fixed at a segment of the tower, that is to be fixed. The sleeve is removed before the tensioning member is braced.

Method for erecting a wind turbine tower

The invention relates to an anchor, more particularly a fixed anchor, for a tensioning device designed for attachment on a construction for holding tensile cords, such as wires, rods, more particularly tensile wires, tension rods, or the like on the anchor, with a multi-part anchor head, wherein the anchor head has an anchor plate in the form of a perforated disc with a feed-through for separately guiding a tensile cord, wherein the feed-through is one of a number of feed-throughs and the tensile cord is one of a number of tensile cords, as well as an intermediate disc mounted on one side of the perforated disc and having a further feed-through for separately guiding the tensile cord, wherein the further feed-through is one of a number of further feed-throughs in the intermediate disc and the tensile cord is the one of the number of tensile cords. According to the invention it is proposed that the intermediate disc is formed as a transition plate which supports at least in the further feed-through a security sleeve which is designed to anchor the tensile cord automatically under tension.

Anchor, tensioning device, wind energy plant and method for tensioning tensile cords on an anchor

The invention concerns a processing apparatus for processing an upper segment edge of a pylon segment of a concrete pylon for preparing the pylon segment for placement thereon of at least one further pylon segment. According to the invention it is proposed that the processing apparatus includes a processing means for processing the segment edge, and a carrier apparatus to be fixed in the region of the segment edge for displaceably carrying and guiding the processing means along the segment edge.

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Emden, Germany

Olaf Stracke