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| 2010 World Cup: with the help of PERI systems  Beginning on 11 June, nine South African cities will be the venues for the 2010 FIFA World Cup – on 11 July after 64 matches, the new world champion will be crowned. However, German-South African participation has already taken place in the preceding months: this is because four stadiums in Durban, Cape Town, Nelspruit and Bloemfontein – with seating capacities for between 45,000 and 70,000 spectators – were constructed or enlarged with the help of PERI formwork and scaffolding systems. Complete project support and rental logistics was handled by Wiehahn, authorized PERI dealer in South Africa.The Greenpoint Stadium in Cape Town and the Moses Mabhida Stadium in Durban will be the venues for the two semi-final games, which take place in front of almost 70,000 spectators in each case. The 34 cm thick reinforced concrete slab of the seven-storey high grandstand in the Greenpoint Stadium was formed using PERI panel slab formwork SKYDECK with MULTIPROP slab props. Through the low individual weights of the aluminium components and the systematic assembly sequence, work could be carried out both quickly and fatigue-free. In addition, the SKYDECK drophead system ensured short striking times as panels and main beams were available for the next cycle in a very short space of time. Apart from the low weight and the high load-bearing capacity, the PERI MULTIPROP has a large extension length, a big advantage for the range of different storey heights. Connected with MULTIPROP frames, the slab props were also used as shoring towers. This meant that the cantilevered formwork for the slab edges could be supported for the height of several floors with the loads being safely transferred to the ground. Supplementing this were the PERI TRIO and VARIO GT 24 wall formwork systems for the stairwells and lift shafts. The PERI TRIO panel formwork and the VARIO GT 24 girder wall formwork also played a crucial role for the construction of the Moses Mabhida Stadium in Durban. With the highly versatile TRIO system, the ballast tanks underneath the stadium structure together with the architectonic fair-faced concrete walls of the five access tunnels to the pitch and the three enormous abutments for the arch support structure of the stadium roof were formed. The VARIO GT 24 wall and column formwork system also demonstrated its versatility for the construction of numerous reinforced concrete columns and elevator shafts as well as the inclined grandstand support beams which were realised extremely accurately and with a high concrete quality cast in-situ. The VARIO formwork elements were pre-assembled at the Wiehahn rental park and delivered punctually ready-to-use on the construction site in accordance with the building schedule. For the construction of the Mbombela stadium in Nelspruit and the Vodacom Park Stadium in Bloemfontein, the PERI MULTIPROP system provided high load-bearing capacities and a high degree of flexibility – finding use as individual slab props and frame-connected shoring towers. MULTIFLEX girder slab formwork combined with UZR beam walers were used to build both slabs and beams. Using GT 24 formwork girders allowed large spans which meant intermediate supports could be avoided as far as possible. For these two stadiums – each holding 45,000 spectators – the comprehensive formwork and scaffolding concept was usefully supplemented by the PERI TRIO and DOMINO wall formwork systems as panel formwork as well as VARIO GT 24 as girder wall formwork. write your comments about the article :: © 2010 Construction News :: home page |