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ARCS (2022-06)

Automated Robotic Concrete Spraying for the Fabrication of Variable Thickness Doubly Curved Shells

10.1007/978-3-031-06116-5_40

 Nuh Mishael,  Oval Robin,  Orr John
Contribution - Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication, pp. 267-273

Abstract

The fabrication of doubly curved concrete shells traditionally poses challenges in terms of material deposition and formwork manufacturing. Recent advances in digital fabrication techniques including robotics in construction have created tools to better tackle these challenges. We present a digital fabrication system to accurately deposit cementitious materials onto doubly curved surfaces using robotic concrete spraying in a process for prefabrication of structural shell components we call ARCS (Automated Robotic Concrete Spraying). Using inputs of a generic variable thickness shell volume, a robotic path is generated to deposit material onto the formwork surface where required. Paths are generated on the surface using geodesic lines as guides in order to create iso-curves for evenly spaced spray paths. Additionally, layers are incrementally deposited to allow for variable thicknesses across the surface. This approach is flexible enough such that additional features can be embedded onto the shell such as ribs. We demonstrate this automated fabrication process on a 1.8 m by 1.8 m scale shell specimen.

5 References

  1. Buswell Richard, Silva Wilson, Jones Scott, Dirrenberger Justin (2018-06)
    3D Printing Using Concrete-Extrusion:
    A Roadmap for Research
  2. Hack Norman, Kloft Harald (2020-07)
    Shotcrete 3D Printing Technology for the Fabrication of Slender Fully Reinforced Freeform Concrete Elements with High Surface Quality:
    A Real-Scale Demonstrator
  3. Lim Sungwoo, Buswell Richard, Valentine Philip, Piker Daniel et al. (2016-06)
    Modelling Curved-Layered Printing Paths for Fabricating Large-Scale Construction Components
  4. Soto Borja, Agustí-Juan Isolda, Hunhevicz Jens, Joss Samuel et al. (2018-05)
    Productivity of Digital Fabrication in Construction:
    Cost and Time-Analysis of a Robotically Built Wall
  5. Taha Nizar, Walzer Alexander, Ruangjun Jetana, Bürgin Theophil et al. (2019-09)
    Robotic AeroCrete:
    A Novel Robotic Spraying and Surface Treatment Technology for the Production of Slender Reinforced Concrete Elements

1 Citations

  1. Ivaniuk Egor, Tošić Zlata, Müller Steffen, Lordick Daniel et al. (2024-07)
    Automated Manufacturing of Reinforced Modules of Segmented Shells Based on 3D Printing with Strain-Hardening Cementitious Composites

BibTeX 
@inproceedings{nuh_oval_orr.2022.A,
  author            = "Mishael Nuh and Robin Oval and John J. Orr",
  title             = "ARCS: Automated Robotic Concrete Spraying for the Fabrication of Variable Thickness Doubly Curved Shells",
  doi               = "10.1007/978-3-031-06116-5_40",
  year              = "2022",
  volume            = "37",
  pages             = "267--273",
  booktitle         = "Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022",
  editor            = "Richard A. Buswell and Ana Blanco and Sergio Cavalaro and Peter Kinnell",
}
Formatted Citation

M. Nuh, R. Oval and J. J. Orr, “ARCS: Automated Robotic Concrete Spraying for the Fabrication of Variable Thickness Doubly Curved Shells”, in Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022, 2022, vol. 37, pp. 267–273. doi: 10.1007/978-3-031-06116-5_40.

Nuh, Mishael, Robin Oval, and John J. Orr. “ARCS: Automated Robotic Concrete Spraying for the Fabrication of Variable Thickness Doubly Curved Shells”. In Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022, edited by Richard A. Buswell, Ana Blanco, Sergio Cavalaro, and Peter Kinnell, 37:267–73, 2022. https://doi.org/10.1007/978-3-031-06116-5_40.