105 m (above ground level, -7 meters below ground level) Volume: 65.000 m3 Mass: 360 MN Functions: -2, -1 (subsoil levels): storage, installation, entrance underground parking 0, entresol: shops 1, 2, 3, 4: offices 5-30: apartments, penthouses at top-level Why is this project important? This project is a multiple-use tower in the inner city of Eindhoven. It combines the entrance to an underground parking, shops, offices and apartments. With a height of 105 meters it will be the tallest building in Eindhoven. Why is this project so special? The different functions each have their own type of construction. The entrance to the underground parking causes a large gap in the base of the structure. The shops and offices have high arcades with large columns and the living quarters have a scattered pattern of windows. The combination of these different construction-types makes a program like ESA Prima Win very useful. Use of ESA-Prima Win Description of the technical questions to be solved with ESA-Prima Win: The main-construction of this tower combines the stiffness of the core with the stiffness of the façade (core-tube system). The core itself is too slender to supply enough stiffness to the building. For this reason the core is connected to the façade by outrigger-walls. These outrigger walls can't be placed on each floor. The forces from these outriggers differ from level to level. The forces from these outriggers have to be spread into the façade. This was complicated by the scattered pattern of windows in the façade. ESA 3D-shell gives the opportunity to analyse the membrane forces in this complex structure. On the lower levels the architect wants to create a classic and inspiring entrance with large arcades. The spread forces in the façade at the apartment-levels have to be concentrated into the large columns of the arcades. Only a finite element program (3D Shell) can accurately calculate the ratio of the forces in the columns. The forces on the foundation-piles can easily be obtained by drawing a plate with a pattern of supports. By moving the supports it is possible to optimise the foundation and to make sure that each foundation-pile takes the load that it is designed for. A description of your experience with ESA-Prima Win when realizing the project: ESA Prima win gives an excellent opportunity to analyse the distribution of forces in the walls and columns. It gives an accurate estimation of the deformation of the structure due to the wind-forces. After the model is completed you get an integrated total design of the construction. The only difficulty is to adapt the structure to changing architectural demands during the design-process of the tower. Modules used: Base 2D Frame 2D Grid 3D Frame 2D Plate 2D Wall 3D Shell Physical non-linear conditions. 55 SCIA User Contest Catalog
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