A filligree bridge integrates itself in its natural environment
The structure aims for be elegance and lightness, as if “above the clouds”, in order to integrate harmoniously into its immediate context and thus become almost invisible. The construction language thus refers to an elegant interpretation of the context and at the same time gives the bridge a feeling of robustness. The structural concept allows the superstructure to be very thin in the middle, making the bridge almost transparent from the perspectives of the ravine edges as well as from the lower promenade.
From a structural point of view, it is an isostatic system in which two load-bearing systems are superimposed to form one. The two halves of the bridge are designed as steel box girder and transfer their loads like a single-span girder to the abutments and the central “flying” V-support. This central V-support is supported by a stress ribbon and, together with the compressive forces in the box girders, creates a force couple in the global system. The shape of the two box girders corresponds to the parabolic bending moments. Their shear stiffness also enables the bridge to carry unevenly distributed live loads without major deformations.
The conclusion of the jury is ”The project deals carefully with the existing natural and landscape values and is highly convincing in terms of design. The filigree, organic-looking bridge girder not only blends successfully into the surroundings, but also merges with its static function. The railing provides a clearly legible line for users without appearing restrictive.“
