Zaha Hadid Architects in collaboration with ETH Zurich has projected the first unreinforced 3D concrete bridge, the footbridge is located in the renowned city of Venice, the Italian city located in the homonymous lagoon, north of the Adriatic Sea is one of the considered Heritage of Humanity by Unesco.

3D printing is gaining more and more prominence in our days, as it can be used to build load-bearing concrete structures that require a much smaller amount of material without the need to reinforce it.
 
ETH Block Research Group partnered with the Zaha Hadid Architects team to made the project. The 12 x 16 square meter bridge is built with concrete blocks that are arranged in an arch similar to traditional masonry bridges, since the bridge is assembled dry it is more stable.

After conducting an exhaustive study in collaboration with the company Incremental3D, it was decided to apply the concrete horizontally following certain angles that were orthogonal to the flow of compression forces, thanks to this the layers are well pressed together and it is not necessary to place reinforcements. The concrete ink used was developed by the Holcim company especially for the project.
 
"This precise method of 3D concrete printing allows us to combine the principles of traditional vaulted construction with digital concrete fabrication to use material only where it is structurally necessary without producing waste."
ETH professor Philippe Block.

Thanks to the fact that the construction does not need mortar, it can be disassembled and moved to another site, or directly recycled.
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12 x 16 sqm.
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2021.
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Concrete ink.- Holcim.
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Venice, Italy.
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Zaha Hadid, (Bagdad, 31 October 1950 – Miami, 31 March 2016) founder of Zaha Hadid Architects, was awarded the Pritzker Architecture Prize (considered to be the Nobel Prize of architecture) in 2004 and is internationally known for both her theoretical and academic work.

Each of her dynamic and innovative projects builds on over thirty years of revolutionary exploration and research in the interrelated fields of urbanism, architecture and design. Hadid’s interest lies in the rigorous interface between architecture, landscape and geology as her practice integrates natural topography and human-made systems, leading to experimentation with cutting-edge technologies. Such a process often results in unexpected and dynamic architectural forms.

Education: Hadid studied architecture at the Architectural Association from 1972 and was awarded the Diploma Prize in 1977.

Teaching: She became a partner of the Office for Metropolitan Architecture, taught at the AA with OMA collaborators Rem Koolhaas and Elia Zenghelis, and later led her own studio at the AA until 1987. Since then she has held the Kenzo Tange Chair at the Graduate School of Design, Harvard University; the Sullivan Chair at the University of Illinois, School of Architecture, Chicago; guest professorships at the Hochschule für Bildende Künste in Hamburg; the Knolton School of Architecture, Ohio and the Masters Studio at Columbia University, New York. In addition, she was made Honorary Member of the American Academy of Arts and Letters, Fellow of the American Institute of Architecture and Commander of the British Empire, 2002. She is currently Professor at the University of Applied Arts in Vienna, Austria and was the Eero Saarinen Visiting Professor of Architectural Design at Yale University, New Haven, Connecticut.

Awards: Zaha Hadid’s work of the past 30 years was the subject of critically-acclaimed retrospective exhibitions at New York’s Solomon R. Guggenheim Museum in 2006, London’s Design Museum in 2007 and the Palazzo della Ragione, Padua, Italy in 2009. Her recently completed projects include the MAXXI Museum in Rome; which won the Stirling award in 2010. Hadid’s outstanding contribution to the architectural profession continues to be acknowledged by the most world’s most respected institutions. She received the prestigious ‘Praemium Imperiale’ from the Japan Art Association in 2009, and in 2010, the Stirling Prize – one of architecture’s highest accolades – from the Royal Institute of British Architects. Other recent awards include UNESCO naming Hadid as an ‘Artist for Peace’ at a ceremony in their Paris headquarters last year. Also in 2010, the Republic of France named Hadid as ‘Commandeur de l’Ordre des Arts et des Lettres’ in recognition of her services to architecture, and TIME magazine included her in their 2010 list of the ‘100 Most Influential People in the World’. This year’s ‘Time 100’ is divided into four categories: Leaders, Thinkers, Artists and Heroes – with Hadid ranking top of the Thinkers category.

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Published on: July 21, 2021
Cite: "Striatus. First world's first 3D-printed concrete footbridge built unreinforced" METALOCUS. Accessed
<http://www.metalocus.es/en/news/striatus-first-worlds-first-3d-printed-concrete-footbridge-built-unreinforced> ISSN 1139-6415
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