Design and fabrication of optimised ribbed concrete floor slabs using large scale 3D printed formwork
OPEN ACCESS
Loading...
Author / Producer
Date
2022-12
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
OPEN ACCESS
Data
Rights / License
Abstract
This paper describes the design, fabrication, and testing process of an optimised, reinforced concrete ribbed floor slab fabricated using robotically 3D printed formwork. The design of the floor slab is based on the alignment of ribs along the trajectories of the principal bending moments. A workflow is described that generates a rib layout based on structural analysis, which is used to create a three-dimensional model of the slab. A full-scale prototype is fabricated by using an industrial robotic arm with a pellet extruder mounted as an end effector to 3D print the formwork. Reinforcement is inserted and the formwork is cast using self-compacting concrete. The successful design, fabrication, and structural testing of the full-scale floor slab prototype showed that the described workflow is suitable for realizing material-optimised, ribbed reinforced concrete floor slabs using 3D printed formwork.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
144
Pages / Article No.
104599
Publisher
Elsevier
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Formwork; 3D Printing; Digital Concrete; Ribbed floor slab; Optimisation
Organisational unit
09469 - Kaufmann, Walter / Kaufmann, Walter
03709 - Kohler, Matthias / Kohler, Matthias
03708 - Gramazio, Fabio / Gramazio, Fabio
03891 - Flatt, Robert J. / Flatt, Robert J.
02284 - NFS Digitale Fabrikation / NCCR Digital Fabrication
Notes
Funding
141853 - Digital Fabrication - Advanced Building Processes in Architecture (SNF)