Curved-crease folding of bending-active plates as formwork: a reusable system for shaping corrugated concrete shell structures

Abstract

This research introduces curved-crease folding (CCF) of bending-active plates as a flexible, lightweight, and reusable formwork system for shaping corrugated concrete shell structures. CCF is extended to an initially closed configuration that unfolds initially-planar bending-active strips into a 3D formwork when actuated on-site. The curved creases control the shape and structurally stiffen the formwork shaping a concrete shell structure with stiffening corrugations.