Robotic knitcrete: computational design and fabrication of a pedestrian bridge using robotic shotcrete on a 3D-Knitted formwork
Author(s): |
Philipp Rennen
Stefan Gantner Gido Dielemans Lazlo Bleker Nikoletta Christidi Robin Dörrie Majid Hojjat Inka Mai Karam Mawas Dirk Lowke Pierluigi D’Acunto Kathrin Dörfler Norman Hack Mariana Popescu |
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Medium: | journal article |
Language(s): | English |
Published in: | Frontiers in Built Environment, February 2023, v. 9 |
DOI: | 10.3389/fbuil.2023.1269000 |
Abstract: |
The research project presented here aims to develop a design-informed manufacturing process for complex concrete shell structures in additive manufacturing and thus overcome limitations of traditional construction methods such as formwork- and labor intensity. To achieve this, an effort was made to merge the two technologies of CNC knitted stay-in-place formwork, known as KnitCrete, and robotically applied shotcrete, known as Shotcrete 3D Printing (SC3DP), and thereby reduce their respective limitations. The proposed workflow unites both digital fabrication methods into a seamless process that additionally integrates computational form finding, robotically applied fiber reinforcement, CNC post processing and geometric quality verification to ensure precision and efficiency. As part of a cross-university, research-based teaching format, this concept was implemented in the construction of a full-scale pedestrian bridge, which served as a demonstrator to evaluate the capabilities and limitations of the process. While overcoming some challenges during the process, the successful prove of concept shows a significant leap in digital fabrication of complex concrete geometry, reducing reliance on labor-intensive methods. The results shown in this paper make this fabrication approach a promising starting point for further developments in additive manufacturing in the construction sector. |
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data sheet - Reference-ID
10756563 - Published on:
14/01/2024 - Last updated on:
14/01/2024