Patent ID: 8272173
Filing Date: 2012-09-25
Classification: E02D,F03D,F05B,Y02E

Abstract:
1. A wind turbine tower comprising: an anchoring assembly part prefabricated from a concrete material; a lower tower portion made of a concrete material; an upper tower portion made of steel, the anchoring assembly part connecting the upper tower portion to the lower tower portion; said anchoring assembly part being of ring shape or ring-segment shape and comprising a projecting reinforcement element, a bore, an anchoring bolt, an anchoring sleeve having an internal thread, an additional bore and a prestressing element; the projecting reinforcement element being connected to the lower tower portion; the anchor bolt being arranged in said bore, screwed with one end into the internal thread of the anchor sleeve and detachably connected with its other end to the upper tower portion; further wherein the prestressing element is received in the additional bore, prestressing the lower tower portion.