Turkey's bid for the 2008 summer Olympics has passed a first milestone with the start of construction of an 80,000 seat stadium. This showpiece stadium will be constructed to a more stringent design specification than the European standard because of the earthquake provisions necessary in the region.
The west stands will be constructed above the complex of administration and facilities buildings while those on the eastern side will be free-standing, supported by 30m high 'mega structures'.
The construction joint venture of Campenon Bernard SGE, TEKFEN and SAE awarded the formwork supply contract to Peri. The formwork components were assembled in Peri's Turkish factory before being shipped to site and assembled under the supervision of the firm's specialists.
High point is formwork for the cast insitu mega structure stand supports.
Arranged in a circular fashion, they have a variety of axial co-ordinates and dimensions. They will carry the precast units for the stands and each structure's triangular front pillar and stepped rear will be connected by a stepped beam.
Peri planned just two sets of its Vario formwork for the mega structures. To conform to the changing architectural profile and concreting cycle geometry, the sets are cut back and fitted with prefabricated box-outs and forming boards. The panels are raised with the company's SSC climbing brackets which can withstand the high loads and be safely anchored into the completed sections.