The development and realisation of this full-scale, one-to-one prototype of the first layer of NEST HiLo's thin concrete shell represent a key milestone for the project, demonstrating the viability of the proposed lightweight, flexible formwork to form a complex concrete surface structure.
The purpose of this experiment is to investigate
- the engineered material system, bespoke sprayed concrete and tailored carbon-fibre reinforcement mats, to achieve the extreme geometry of the shell;
- the logistics, including sequencing of construction, involved in scaling up the concept of a tensioned flexible formwork;
- the effectiveness of the control algorithms, supported by point-cloud scanning, developed to map the flexible formwork to the designed target geometry;
- the quality of the resulting architectural concrete on the thin and large surface structure.
Professional partners have been brought together to mimic real-life conditions so that the feasibility of this extreme construction innovation can be assessed.
Check out how the unique concrete shell was designed, fabricated and constructed! Coming soon...
Check out the amazing documentation by Zitronenwolf of different stages of the construction prototype:
DESIGN AND ENGINEERING
ETH Block Research Group [BRG]
ETH Chair of Mathematical and Physical Geodesy
ETH Automatic Control Laboratory
Marti [general contractor]
Bürgin Creations [concrete works]
Bruno Lehmann [rods + cable net components]
Blumer Lehmann [timber]
Dafotech [steel supports + plates]
Bieri [fabric cutting + sewing]
NCCR Digital Fabrication
Alexander Nikolas Walzer