.png){kind=icon}
.png){kind=icon}
Return
Laminated vault: scaffold-free 3D concrete printing of vaulted structures via zig-zag lamination
.png){kind=icon}
OA
AI
A
M
DOI：10.1080/17452759.2026.2686062.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Vaulted structures achieve exceptional structural efficiency by carrying loads primarily through compression, yet their construction has declined because of the specialised labour and extensive internal scaffolding required. Robotic 3D concrete printing offers a path to automated vault construction without bespoke internal scaffolding, but the fresh cementitious material cannot support itself during the cantilevering stages that arise as a vault is built from one side to the other; unsupported filaments sag and peel away from the preceding layer within seconds of deposition. This paper addresses the problem by introducing a zig-zag lamination strategy in which a secondary filament is deposited in a diagonal pattern over the primary layer, creating tension ties that anchor the growing cantilever back into stabilised material behind it. A reduced-order analytical framework is developed to design the lamination geometry, coupling vault geometry, deposition sequence, and early-age material state into closed-form admissibility checks for any candidate design. The framework was validated on a barrel-vault demonstrator: the selected lamination design sustained the complete vault with no delamination or visible distress. The scaffold-free claim refers to eliminating the internal scaffolding traditionally required to support fresh material during cantilevering construction, not eliminating the springing support inherent to any vaulted geometry.
Keywords:
3D concrete printing
scaffold-free construction
zig-zag lamination
buildability
vaulted structures
Journal
IF:
8.8
Papers:
1.0K
Citations:
4.9K
Organization
Cited Papers