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<p>Formwork for concrete construction remains one of the most resource-intensive, polluting, and constraining components of the construction sector, relying on prefabricated molds that demand extensive material, labor, and on-site preparation. We introduce a self-deploying formwork system based on multistable tubes that transform from a compact configuration to a full-scale structural mold with integrated steel reinforcement. We demonstrate this concept by deploying a steel-reinforced 2.36 m high structure within 14 seconds. We further observed that the polymer shell of the multistable tubes increases the structural strength by a factor of three, significantly enhancing their load-bearing capacity. The demonstrated concept paves the way for the creation of concrete castings with minimal on-site intervention, enabling a scalable pathway toward rapid, low-carbon construction methods.</p>

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Self-deploying reinforced concrete structures

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月23日

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  • Ezra Ben-Abu,
  • Anna Zigelman,
  • Hod Lipson,
  • Amir D. Gat

摘要

Formwork for concrete construction remains one of the most resource-intensive, polluting, and constraining components of the construction sector, relying on prefabricated molds that demand extensive material, labor, and on-site preparation. We introduce a self-deploying formwork system based on multistable tubes that transform from a compact configuration to a full-scale structural mold with integrated steel reinforcement. We demonstrate this concept by deploying a steel-reinforced 2.36 m high structure within 14 seconds. We further observed that the polymer shell of the multistable tubes increases the structural strength by a factor of three, significantly enhancing their load-bearing capacity. The demonstrated concept paves the way for the creation of concrete castings with minimal on-site intervention, enabling a scalable pathway toward rapid, low-carbon construction methods.