ArtConstruction 3D Printing

Striatus 3D printed masonry footbridge completed in Venice

Open to the public until November 2021

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The Striatus in Venice, the first-of-its-kind 3D concrete printed bridge, is a project we first told you about last March when the initial parametric design by Block Research Group and Zaha Hadid Architects was complete and construction commenced, in collaboration with incremental3D and Holcim. Only a few months later, this beautiful work of art has been completed: the bridge is now open to the public in the Marinaressa Gardens during the Venice Architecture Biennale until November 2021.

Striatus establishes a new language for concrete that is digital, environmentally advanced and circular by design. The footbridge holds together through compression with no reinforcements, applying computational design and 3D printing, for minimal material use and maximum strength.

The bridge is now open to the public in the Marinaressa Gardens during the Venice Architecture Biennale until November 2021.
©Naaro

Philippe Block, co-director of the Block Research Group at ETH Zurich commented: “The name “Striatus” reflects the bridge’s structural logic and fabrication process. In arched and vaulted structures, material is placed such that forces can travel to the supports in pure compression. Strength is created through geometry, using a fraction of the materials used in conventional concrete beams. This, furthermore, opens a breadth of opportunities to build with lower-strength and in a more ecologically friendly way.”

“Striatus stands on the shoulders of giants,” added Shajay Bhooshan, Head of CODE, Zaha Hadid Architects’ Computation and Design research group: “It revives ancestral techniques of the past, taking the structural logic of the 1600s into the future with digital computation, engineering and robotic manufacturing technologies. Its tactile quality, aesthetics and strength reflect our principal partner Patrik Schumacher’s vision that beauty is a promise of performance.”

The bridge is now open to the public in the Marinaressa Gardens during the Venice Architecture Biennale until November 2021.
©Naaro

Striatus is a complex structure made possible by a specific, custom-made ink, from Holcim’s TectorPrint range, developed by its 3D Concrete Printing research team. It sets a blueprint to build for the future using advanced technologies from computational design to 3D Concrete Printing. The next generation of inks can include Holcim’s green building solutions, from its ECOPact green concrete to its ECOPlanet green cement, including recycled construction and demolition waste.

For Johannes Megens, co-founder incremental3D, “Striatus represents the perfect synergy of architecture and engineering that comes together with printing technology and material innovation. The beauty of 3D Concrete Printing—he said— is the delicate layering and precision you can apply to reflect perfect geometry. Our collaborative work makes the Striatus bridge greater than the sum of each of its blocks.”

The bridge is now open to the public in the Marinaressa Gardens during the Venice Architecture Biennale until November 2021.
©Naaro

Today, Holcim is working on a range of 3D Concrete Printing applications, from complex infrastructure to affordable housing. In Malawi, Holcim launched the world’s first 3D concrete printed school, taking only 18 hours to build the walls and using 70% fewer materials than traditional building techniques. Holcim is also working with GE Renewable Energy and COBOD to 3D concrete print taller wind turbine towers on-site, doubling their height to harness stronger winds and capture 33% more renewable electricity at a lower cost.

Jan Jenisch, CEO of Holcim concluded: “Striatus was designed by some of the best architectural and creative minds in their fields. It demonstrates the infinite possibilities of 3D Concrete Printing to enable more sustainable, faster and effective building structures, without compromise on aesthetics and functionality. Its digital and circular design uses concrete at its best, with minimal material use and blocks that can be repeatedly reassembled and infinitely recycled.”

All images ©Naaro

Research 2021
Ceramic AM Market Opportunities and Trends

This market study from 3dpbm Research provides an in-depth analysis and forecast of the ceramic additive ma...

Davide Sher

Since 2002, Davide has built up extensive experience as a technology journalist, market analyst and consultant for the additive manufacturing industry. Born in Milan, Italy, he spent 12 years in the United States, where he completed his studies at SUNY USB. As a journalist covering the tech and videogame industry for over 10 years, he began covering the AM industry in 2013, first as an international journalist and subsequently as a market analyst, focusing on the additive manufacturing industry and relative vertical markets. In 2016 he co-founded London-based 3dpbm. Today the company publishes the leading news and insights websites 3D Printing Media Network and Replicatore, as well as 3D Printing Business Directory, the largest global directory of companies in the additive manufacturing industry.

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