Abstract: It includes at least one platform defining a plane, first and second sets of complementary coupling elements associated with the tower section and the platform respectively, and arranged in levels. In a first relative position of the sets of coupling elements, the platform is allowed to pass, in a substantially horizontal position, through different levels of sets of coupling elements and in a second relative position of the sets of coupling elements, the platform rests with its second set of coupling elements on a first set of coupling elements of one given level. A device for moving the platform may be provided for fitting it inside the tower section. The first or the second set of coupling elements in different levels are aligned along a longitudinal direction inside the tower section.

Abstract: It includes at least one platform defining a plane, first and second sets of complementary coupling elements associated with the tower section and the platform respectively, and arranged in levels. In a first relative position of the sets of coupling elements, the platform is allowed to pass, in a substantially horizontal position, through different levels of sets of coupling elements; and in a second relative position of the sets of coupling elements, the platform rests with its second set of coupling elements on a first set of coupling elements of one given level. A device for moving the platform may be provided for fitting it inside the tower section. The first or the second set of coupling elements in different levels are aligned along a longitudinal direction inside the tower section.

Abstract: A tower portion for a wind turbine includes at least one wall segment and at least one opening segment. The opening segment includes an opening, one or more inner edges, two side edges, an upper edge and a lower edge, the opening being delimited by the one or more inner edges. The wall segment is shaped as less than a full 360° ring. The opening segment is coupled with the wall segment by the side edges. The opening segment and the wall segment form segments of a ring and when coupled form a full 360° ring. The opening segment has a variable thickness increasing from the side edges to the inner edges.

Abstract: It comprises at least one shell portion for forming a shell segment of a wind turbine tower and a flange portion attached to the shell portion. The flange portion comprises flange sectors separated from each other by corresponding spaces defining a discontinuous flange portion. The shell portion includes apertures formed in correspondence with the spaces between adjacent flange sectors. The flange sectors are formed with at least one base portion extending from at least one face of the shell portion at an angle to the shell portion. The base portion may have a varying thickness.

Abstract: It comprises providing at least two metal shell segments arranged adjacent to each other, forming a column of concrete on at least a joint portion of adjacent shell segments, placing a formwork to form said column of concrete, assembling a support framework before providing shell segments, providing an auxiliary sub-structure internal to the shell segments, and an attaching formwork associated both with the internal support framework and to the shell segments. The assembling of the internal support framework may be carried out by providing at least a first series of auxiliary pillars, joining the auxiliary pillars to each other to form a first auxiliary sub-structure and arranging an attaching formwork attached to said auxiliary pillars.

Abstract: It comprises at least one shell portion for forming a shell segment of a wind turbine tower and a flange portion attached to the shell portion. The flange portion comprises flange sectors separated from each other by corresponding spaces defining a discontinuous flange portion. The shell portion includes apertures formed in correspondence with the spaces between adjacent flange sectors. The flange sectors are formed with at least one base portion extending from at least one face of the shell portion at an angle to the shell portion. The base portion may have a varying thickness.

Abstract: A tower section for a wind turbine tower structure comprises at least two shell segments defining, in an assembled condition, a substantially hollow structure, and including first connecting means for mutually joining two adjacent shell segments along a joint, which comprise a column of concrete arranged overlapping at least part of the joint between adjacent shell segments. A method for building a tower section for a wind turbine tower structure and a wind turbine comprising a nacelle having rotatable blades and a vertical tower made of at least one of such tower sections are further provided.

Abstract: A tower section for a wind turbine tower structure comprises at least two shell segments defining, in an assembled condition, a substantially hollow structure, and including first connecting means for mutually joining two adjacent shell segments along a joint, which comprise a column of concrete arranged overlapping at least part of the joint between adjacent shell segments. A method for building a tower section for a wind turbine tower structure and a wind turbine comprising a nacelle having rotatable blades and a vertical tower made of at least one of such tower sections are further provided.