METHOD FOR PRODUCING AND ERECTING A TUBULAR TOWER CONSTRUCTION
The invention relates to a method for erecting a tubular tower construction, in particular a substructure tower for existing wind power tower structures, wherein shells having a substantially ring-segment-shaped cross-section are formed from steel plates, wherein the ring-segment-shaped curvature of the shells is formed by means of a plurality of bends along the periphery in such a way that a plurality of surfaces that follow one another in the peripheral direction and that are angled from each other is formed, wherein, of the shells along planned axial connecting lines, an axial flange is bent radially inward or outward from the shell, wherein, in order to erect the tower construction, the shells are arranged against each other by means of the flanges of adjacent shells and are connected by means of the flanges of shells lying against each other in order to form a tube segment, wherein the shells have one horizontal flange at each horizontal end edge in order to connect a tube segment to a foundation or a further tube segment or a further tubular tower in the tube segment base region and/or in the tube segment head region. The invention further relates to a tubular tower construction and to a door assembly.