For this unique tram stop in Prague, So Concrete successfully utilized robotic construction techniques to achieve a maximally efficient structure that uses the principles of internal force distribution or pressures and tensions in the structure. Compared to conventional technologies, the approach saves up to 60% of material in terms of economics and sustainability.
The stop is located in Prague’s 7 district, which is perceived as a progressive, modern, and creative district home to many artistic and cultural institutions.
The stop design was developed using a digital workflow based on parametric design in Grasshopper (Rhino). Different types of concrete and approaches to 3D printing were used for different components. The roof and bench were made using robotic 3D printing, while to create the column heads, robots milled and printed the molds into which the final heads were printed.
So Concrete explains that their technology is based on topological optimization, ultra-high-performance concrete (UHPC), and robotic 3D printing. Thanks to the integration of these principles, the basic structure of the stop was completed within 24 hours. The topological optimization allowed more than half of the material to be saved and to achieve natural aesthetics. The properties of UHPC make it possible to manufacture such subtle self-supporting structures using a minimum amount of steel.
To confirm the statics of the structure, leading engineering company Stráský, Hustý a partneři, was approached for validation.
