From Hanging to Standing: Fabric-Formed Catenary Arches as Scalable Concrete Building Components

This paper tackles a very specific failure mode in fabric-formed concrete: arches and shells that are optimized while hanging under gravity often crack when you try to stand them up. The authors propose a CNC-milled, repositionable frame plus soft-to-rigid connection details so the frame rotates with the cast piece during tilt-up, instead of forcing the concrete to take the stress.

They also push the idea of “scalar reframing,” where small catenary units are repeated inside larger building components like walls and slabs. That matters because it turns a one-off sculptural technique into something that could scale into real construction systems, rather than staying a demo artifact.

For developers, the interesting part is the workflow mindset: material behavior is being treated as a design constraint to be engineered around, not hidden. The paper reports material testing and iterative prototyping, with concrete paste and non-woven geotextile pairings that produced good surface finishes. The key result is that the arches could be cast, released, and reoriented without cracking or damage.

The paper is from arXiv cs.GR, submitted 12 Aug 2025 and revised 6 Jun 2026. While this is construction research, the broader lesson is familiar to anyone working with simulation, procedural generation, or fabrication pipelines: if the transition between states is unstable, the whole system fails. Here, the authors solved that transition with a mechanical workflow instead of a stronger material.