Nemetschek Engineering User Contest 2009 • Category 5: CAE Special Projects 181 5 Health Education Museum CORPUS, Oegstgeest The part of the building where the congress centre is located is cantilevered, protruding over 5 storeys. This can be seen by visitors entering the congress centre directly below this cantilever. All façade planes, including the protruding parts, were designed as 2D models. Congress centre and car park Noticeable features of the congress centre are the large column-free spaces and its cantilever, protruding over the split-level car park. These are created by an architectural lattice framework, which also ensures the stability. The façade beams have been outfitted with lattice girders, which in their turn are covered with steel roof slabs. This façade lattice framework enabled the relatively easy construction of the 5-metre cantilever. The lattice framework was calculated with the use of ESA-Prima Win. Human body The museum’s façade shows the most remarkable feature of the building: the model of a human body, measuring 35 metres. The steel framework of the figure was custom-designed, surrounding the escape staircase in the body’s torso. It was constructed from stabilising rings on storey level. The weight is carried by the body’s spine, using 6 columns. Taking into account the uninsulated nature of this construction, the vertical connections with the building have been made flexible, which takes care of possible thermal deformation. For this reason, too, the head above the museum’s roof has been made to protrude from the main structure. By prefabricating the body’s head right next to building, the costs of an expensive scaffold were saved. The placing of the head, by a mobile tower crane, saw the spectacular celebration of reaching the building’s highest point. For the construction of this human body, two computational models were used. The first, a 3D framework, showed a schematic presentation of the head and the torso. These transfer their weight vertically. The legs were captured in a second model, which was shifted from the torso. This part rests on a section of the museum’s roof. During the construction, the 3d model was also used to determine the weight of parts of the building, as well as for calculating the head’s mass centre, including the covering; this consequently determined the suitable hoist points. The development of a special connection between façade planes (made of Corten steel) and the steel construction enabled the façade to be attached without taking special measurements. This resulted in an extremely short construction period. The connection consists of a bushing, which can be adjusted to three levels of manoeuvring space. The bushing is placed on a wiring end, which in its turn is part of the steel construction. By placing a wooden beam between two adjacent bushings, one of the many indentations is realised in the faceted cover.
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