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High-load-capacity vertically deployable foldable scaffolding (with Korea Shipbuilding & Offshore Engineering Co., Ltd.)
Scaffolding is a temporary structure used in construction and shipyard environments to provide working platforms for at-height operations. Conventional scaffolding requires repeated assembly and disassembly of modular components, which often increases labor and time costs. In this project, we develop a deployable scaffolding system that can be stored in a folded state and deployed when needed to reduce installation and dismantling effort.
Meanwhile, handling large structures during deployment—such as reorienting a full-height structure or deploying it laterally while upright—can be challenging and may raise safety concerns. To mitigate these issues, our approach deploys the structure vertically (Z-axis) from a compact, flat-folded state. The design aims to allow Z-axis compression/extension while maintaining high post-deployment load capacity, achieved through specialized origami-linkage mechanisms and joint designs that increase rigidity after deployment.
Installation time : 11 min (video at 44× speed)
Staged prototyping from 1:1000 to full-scale
Developing full-scale foldable scaffolding from the start involves significant time and cost risk. We therefore adopted a staged prototyping method, rapidly iterating at small scales to verify feasibility of target patterns and mechanisms, then progressively increasing the scale to address manufacturing tolerances and scale-dependent issues, ultimately realizing a full-scale vertically deployable structure.
To achieve Z-axis folding with high post-deployment load capacity, our design combines three elements:
(1)A thick-origami facet singularity that keeps its shape under load and lets loads go through facet contact instead of just joints.
(2)An over-constrained deployed pattern that distributes loads across multiple contacts and reduces stress concentration.
(3)Variable-clearance joint elements that allow stress-free, flat folding even with fabrication/assembly mismatch, while transitioning toward near-zero clearance after deployment to improve alignment and stiffness.
Video at 2× speed
Video at 2× speed
Performance evaluation and field validation
Our full-scale prototype demonstrated a load capacity of over 1,250 kg, sufficient to support two adult workers carrying equipment during at-height operations. Based on field requirements, the structure was further refined, enabling deployment and dismantling within ~2–3 minutes by two workers, without hazardous assembly work at height. The improved version has been produced and deployed in the field (approximately 20 units in use), and we are extending the deployable-structure concept to additional scaffolding variants and configurations.
Video at 4× speed
Installation time : 3 min (video at 12× speed)
Dismantling time : 2 min (video at 9× speed)
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