The Maracanã Stadium in Rio de Janeiro, Brazil, was built for the Soccer World Cup in 1950. At the time, the oval stadium, consisting of precast concrete, had the world's largest cantilever roof with a span of nearly 30 m. Due to its historical significance for Brazilian soccer history, the open air stadium was not replaced by a newer stadium, but repeatedly renovated and expanded in the course of time.
In order to prepare for the World Cup in 2014 and the Olympic Summer Games in 2016, the stadium was repaired comprehensively. The stadium's capacity was increased from 82,238 to 85,000 spectators. In addition, the roof was extended so that all seats of the stadium are protected from precipitation in the meantime.
For the extension of the roof, the upper tier along the stadium's oval had to be anchored to the tier lying underneath. Ø 32 mm GEWI® Post-Tensioning Bars were used for this purpose. For anchoring the upper tier, Protendidos DYWIDAG supplied a total of approx. 1,000 m of GEWI® Bars in lengths of 1.85 to 3.60 m as well as 240 anchor plates and nuts.