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Making Blobs with aTextile Mould 313
Fig. 16. Model in DIANA Fig. 17. 3D scanof Blob oject
large deflection of the system. But due to all the irregular bent surfaces there is no
reference for the deflection. In this case a deflection of for example 400mm or 800mm
cannot be seen. The structural system partly functions as a shell. At places where
there is a transition from one curvature to another the outer forces are transferred
by means of a bending moment. This is of course a bad situation for a thin walled
structure. There are different solutions for this problem. From the solutions that
were thought of the option of varying the wall thickness was chosen.
Fig. 18. Wall locally strengthened
around problem area
5.3 The Form-Active Analysis of the Structure
Fig. 19. Wall locally strengthened in
problem area
The form of the indoor ski run was analyzed by means of describing the form by
sections. To achieve the designed form there are a number of possibilities for the
inflated structural elements that are put under the skin. At firstthecrosssections
in width direction are shown. Next the different inflated structural elements are
explained.