Patent ID: 8826614

Claim:
A system for joining a gondola to a concrete tower of an aerogenerator, where the concrete tower is formed by a lower annular section, one or several intermediate annular sections and an upper annular concrete section, the system comprising: a flat annular support superimposed to but not embedded in an upper surface of the upper annular concrete section of the tower and subjacent to a lower surface of a yaw bearing that supports the gondola; the flat annular support comprising a plurality of orifices; and a plurality of joining devices positioned and configured to join the gondola to the upper annular concrete section, each joining device of the plurality of joining devices passing through a respective orifice of the plurality of orifices of the flat annular support, each joining device being inferiorly fixed to the upper annular concrete section of the tower and being superiorly fixed to the yaw bearing, wherein the system is configured to transfer a load from the gondola to the upper surface of the upper annular concrete section.