By request of Prof. Ir. K. Rijnboutt, the former government architect, we designed an overhead bridge connecting two office buildings that he designed for Leaseplan in Almere. The bridge has two storeys.
It follows the winding of the road, and is constructed by elliptic rolled steel elements, with very thin strips fixed in between. This results in a 'gauzy' structure, which, in relation to the minimal use of material, is extraordinarily firm, and can very well absorb the torsion that is caused by the bend in the bridge.
An extremely thin skin is suspended within the steel construction, constituting the actual footbridge. We mainly used glass for this: absorbing glass on the sunny side, clear glass on the shady side.