We are currently working on a very special project near Stuttgart: the bridge over a country road, which will connect parts of the production site of Trumpf GmbH in Ditzingen. The company produces lasers for industrial manufacturing.
The 28-meter-long bridge consists of a lightweight shell construction, which due to the high efficiency of the structure, can be made from only 2 centimeter thin, double curved stainless steel sheets. The shell edge is stabilized by an upstand, further stiffening bulkheads or stiffeners were completely omitted.
When crossing the bridge, the pedestrian walks directly on the shell, which is coated on the walking area to prevent slipping. The areas next to the walking area feature holes according to the flow of forces which were cut by using Trumpf laser machines. The size and density of the aperture is based on the degree of utilization of the structure. In the area of the tread, the lasered apertures are replaced by approximately 14,300 smaller holes that are filled with glass.
The lightness of the bridge is highlighted by the very transparent and anti-glare glass railings.
The first idea for the innovative construction derives from an orange net used in the model that could be tensioned into the right shape and thus retained its stiffness.