Construction—South America—Brazil—Wind Energy Structures
International Cooperation for Progress:
Wire EX Tendons at the Itarema Wind Park in Brazil
The Itarema Complex in the federal state of Ceará in northeastern Brazil
consists of several wind parks and is located near Jericoacoara Beach,
which is especially popular with kite surfers due to the strong winds in
this area.
In total, 69 wind towers consisting of
prefabricated concrete segments and
rotor diameters of 125m and 116m were
erected there. 26 wind towers have a hub
height of 100m, and 43 towers reach a hub
height of 120m. Each of the wind towers
accommodates a 3MW turbine, so that
the total electrical output of the Itarema
Wind Park equals 207MW.
Six Wire EX Tendons were installed from the
bottom up in each of the wind towers.
158
Type 56 Wire EX Tendons were used in
the 26 100m high towers, and Type 62
Wire EX Tendons were installed in the 43
120m high towers.
In total, DSI Germany produced 414
Wire EX Tendons that were supplied to
the jobsite on coils for the 69 new wind
towers at the Itarema Park. In this project,
the coordination with Acciona Windpower
was once again managed by DYWIDAG
Sistemas Constructivos (DSC), Spain.
On site, the DSI companies Protendidos
DYWIDAG and DSC carried out the installation
and post-tensioning of the Wire EX Tendons.
The Itarema Complex is the 5 th Wind Park in
which Acciona has successfully cooperated
with DSI. Thanks to the excellent cooperation
of all partners involved, the project was carried
out successfully from production, supply and
installation to jobsite supervision.