Fler bilder 
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Toll station for the Millau Bridge, France
On-site production of prefabricated parts:
Dimensional accuracy and high concrete quality
For many years it has been common practice in France for private operating companies to finance most of the traffic network. This is also true for the building of the century, the “Viaduc de Millau”, whose world-record bridge piers were built using PERI formwork systems.
The French state has assigned the right of use to the Eiffage construction group for a period of 75 years. It is only after this period that the ownership of the bridge and the related rights will pass to the French state.
The “Gare de Péage”, the bridge toll station, is situated about four kilometres north of the bridge. The individual toll booths are roofed by a 98 x 28 m large concrete shell whose load is carried by only four axes of a slender steel structure. A total of 54 differently shaped individual segments, which are 0.60 to 2.00 m high and twisted, form the actual concrete roof. The segments are prefabricated and then bolted together. After being placed in their final position, they are pre-tensioned by means of tensioning strands and then permanently connected to each other.
PERI was responsible for the planning, manufacturing and delivery of the formwork that facilitated the cost-effective prefabrication of the different individual segments with weights of up to 65 t directly on the building site. The PERI engineers realised a practical concept that made it possible to regularly complete one segment every three days. The main features of the high-quality segments are the dimensional accuracy and excellent concrete finish.
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PERI scope, DE, 01/2004
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