A support structure for a wind turbine

摘要

The support structure for a wind turbine comprises a series of sectors of column shaft (1) having a frustoconical shape, each stretch integrating two or more precast concrete wall pieces (2) and (3) having a polygonal or circular section formed with pieces prestressed in a bed in the factory, with centered or slightly deviated prestressing (4) and passive reinforcement (5) in the perimeter of the section, attached by means of wet or dry longitudinal joints (6). The precast concrete wall pieces of one or more of said annular sectors have in one or two of their end portions a thickened section in which ducts are configured for arranging therethrough spans of prestressing cables or bond bars.