Construction—South America—Brazil—Wind Energy Structures
Renewable Energy in Brazil:
Wire EX Tendons and DYWIDAG Bar Tendons for the new Aracati Windpark
The State of Ceará has one of the largest installed capacities of wind energy in Brazil, and its conditions are ideal for
generating energy thanks to its consistently high wind velocities, which on average exceed 10m/s. To make even more
use of its favorable location and conditions of the federal state, additional wind parks are being built in Ceará.
This also includes the Aracati Wind Park
located at Aracati and near the touristic beach
Canoa Quebrada. The project consists of
47 new wind towers, each of which is 120m
high and supports a turbine with an output
of 2.1MW, allowing the park to reach a total
output of 98.7MW.
Each Wind Tower is post-tensioned with 6
Type 78 Wire EX Tendons installed inside the
tower shaft.
160
Protendidos DYWIDAG faced several
challenges for installing the Wire EX tendons in
towers without installed elevators while having
to complete the work in a short time period.
Type 78 Wire EX tendons were installed
and stressed in approximately 22 towers in
a period of just two months. Protendidos
DYWIDAG’s experienced technicians were
able to achieve a high level of installation
safety and efficiency throughout the project’s
construction period.
In addition to the 282 Wire EX Tendons,
Protendidos DYWIDAG also supplied
and installed 1,128 36mm Ø, 2.3m long
DYWIDAG Bars including accessories that
were used on the last section of the tower to
connect the concrete to the steel ring that
supports the nacelle.