CAST-IN PLACE SELF LIFTING CONCRETE TOWER 170m HH PROTOTYPE IN CHINA

Highest self-supported wind tower ever built

ESTEYCO’s telescopic concrete tower on-shore prototype is just about to be finished in China. This realization is expected to become, once completed at the end of 1Q 2.021, the highest self-supported wind tower ever built in the world.

Telescopic technology, patented by ESTEYCO, was initially tested in 2015 with an on-shore prototype without turbine at its top that was erected near Madrid. Some years later in 2.018 the first off-shore fully operational prototype was installed in Gran Canaria Island, becoming the first off-shore wind turbine installed in Southern Europe. Its main advantage was to avoid the need of heavy, scarce and expensive lifting means -heavy cranes or vessels- as they are not required neither for the tower nor turbine installations.

The solution is right now being implemented in Henan province, Continental China, achieving a hub height of 170m and supporting a 3.6MW – 155m rotor diameter turbine. It combines three concrete levels -heights ranging from 40 to 50m- with conventional tubular steel sections at its top. Concrete levels are cast-in-place at the ground level by means of a climbing formwork. These levels are arranged one inside the other, concentrically, prior to the beginning of the auto-lifting phase.

The solution, from that moment on, will be using heavy-lift strand jacks always placed at 40-50m height, reusing them to lift one tower section after the other. Such recoverable jacks lifting each level will be supported by the one below, which also helps for guiding the lifting section as it rises, in a self-installing procedure patented by ESTEYCO, in which the tower itself is the only supported structure required.

Publications of the news in the press:

Aeeolica

Periódico de la Energía

Cluster Energía

Evwind

Wind Power


	
Esteyco