DSI supplies Post-Tensioning Systems for trend-setting Design: Construction of Audi’s new DesignCenter
In October 2014, construction work for a new DesignCenter began on Audi AG’s factory premises in Ingolstadt, Germany. After completion of construction within approx. 300 working days, the German car manufacturer will use this facility for the development of new concepts and models.
The modern reinforced concrete structure was built in two sections. In order to ensure the high quality of the exposed concrete surfaces, a new formwork system with a formwork sequence that was developed by the general contractor MAUSS was used for the construction of the DesignCenter.
Modellwerkstatt_1 is located in the basement of the building. As a factory model workshop, it was designed with a headroom of 7m. The Desing_2 area is located above the workshop. Präsentationsebene_3, the presentation area on the fourth floor, completes the building. The generous areas of the new DesignCenter with only a small number of supporting columns required that several floor slabs be designed and constructed using post-tensioned prestressed concrete.
For tensioning the floor slabs above the 1st basement floor and the 1st, 3rd and 4th floor, DSI supplied oval, Type 6-5, SUSPA Systems Tendons without additional reinforcement complete with Type E Stressing Anchorages and Type EP Fixed Anchorages. The prefabricated tendons that are protected by oval ducts were installed longitudinally and transversally into the slab formwork and tensioned in accordance with the predetermined order by experienced DSI installation technicians.
For the slabs above the first upper floor, DSI supplied both oval, Type 6-5, SUSPA Systems Tendons and Type 6-9, SUSPA Systems Post-Tensioning Systems in round ducts. Both post-tensioning systems were placed horizontally and vertically on the formwork without additional reinforcement and complete with Type E Stressing Anchorages and Type EP Fixed Anchorages and were also tensioned by DSI technicians.
A total of 671 prefabricated, Type 6-5, 8 - 76m long tendons with a total weight of 146t as well as 364 Type 6-9, 26 - 51m long tendons with a total weight of 125t were installed in the 5 aforementioned slabs of the new DesignCenter. In addition to the stressing and fixed anchorages, Types E and EP, 40 Type 6-9 coupling anchors were installed.