Striatus, a first of its kind 3D concrete printed arched bridge, is a project by the Block Research Group (BRG) at ETH Zurich and Zaha Hadid Architects Computation and Design Group (ZHACODE), in collaboration with incremental3D and Holcim.
Striatus is circular by design, combining traditional masonry with advanced technologies.
Achieving strength through geometry, the Striatus bridge stands solely through compression without reinforcement. Using advanced technologies, from computational design and engineering to robotic manufacturing, Striatus revives traditional master builders’ techniques.

Image courtesy Zaha Hadid Architects
Striatus was designed to place material only where needed, helping to reduce its environmental footprint. Without any reinforcement and using dry assembly without binders, it can be repurposed repeatedly.
“Striatus opens up a world of possibilities with concrete in a design that is structurally informed, fabrication-aware, and ecologically responsible,” said Zaha Hadid Architects in a press release. “Material is precisely placed to build more with less.”
Striatus is being built for the ‘Time Space Existence’ exhibition, hosted by the European Cultural Centre (ECC) during the Venice Architecture Biennale 2021. It will be opening at the Giardini della Marinaressa, Venice, Italy.