Abstract: A steel tower for a wind turbine, including a plurality of cylindrical and/or conical tower sections arranged one above another in a tower lengthwise direction which are joined together via horizontally running annular flanges, at least one tower section having at least two section pieces, which are welded together along their adjacent, horizontal and annular end faces and are welded to a horizontal annular flange along each of the free uppermost and lowermost end face, and the at least one tower section being divided into a plurality of section segments which are joined together by longitudinal profiles and connecting means to form a circumferential tower section. At least one of the annular flanges has at least two separation sections in which the annular flange is divided into annular flange segments. The at least one annular flange forms a monolithic annular flange prior to a severing of the section segments.

Abstract: A method for making a tower for a wind turbine includes: making tower sections, which can be arranged one on top of another; defining two separation lines running in a longitudinal direction for one of the tower sections and providing a longitudinal profile for a separation line, wherein the profile is formed as a single piece with two legs running parallel at a mutual distance; connecting the profile to the tower section, wherein the legs are connected to the tower section on opposing separation line sides; severing the tower section along the separation line into segments mutually separated by a segment boundary, wherein the monolithic profile is severed and each of the legs remains connected to a segment on a different side of the boundary; connecting segments by the legs of the severed profile to a tower section; and, connecting several tower sections to form a tower.

Abstract: A steel tower for a wind turbine, including a plurality of cylindrical and/or conical tower sections arranged one above another in a tower lengthwise direction which are joined together via horizontally running annular flanges, at least one tower section having at least two section pieces, which are welded together along their adjacent, horizontal and annular end faces and are welded to a horizontal annular flange along each of the free uppermost and lowermost end face, and the at least one tower section being divided into a plurality of section segments which are joined together by longitudinal profiles and connecting means to form a circumferential tower section. At least one of the annular flanges has at least two separation sections in which the annular flange is divided into annular flange segments. The at least one annular flange forms a monolithic annular flange prior to a severing of the section segments.