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<p>This study explores a modular construction method for hemispherical domes using flexible fabric formwork supported by geodesic lamella grids. The system employs a suspended membrane that deforms under gravity, while the bending-active grid defines the curvature and provides temporary structural support during casting. Dome segmentation is derived from polyhedral geometry, enabling the off-site prefabrication of repeatable panels for subsequent on-site assembly. Two physical prototypes, a 1:5 scale gypsum panel and a 1:2 scale concrete panel, were fabricated to evaluate the feasibility of this method. Results from both fabrication and simulation indicate that this approach may offer a viable alternative to rigid molds for producing curved concrete structures.</p>

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Integration of Fabric Formwork and Geodesic Grids for Hemispherical Dome Fabrication

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年8月4日

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  • Felicia Wagiri,
  • Shen-Guan Shih,
  • Deser Christian Wijaya,
  • Milena Stavric,
  • Kevin Harsono

摘要

This study explores a modular construction method for hemispherical domes using flexible fabric formwork supported by geodesic lamella grids. The system employs a suspended membrane that deforms under gravity, while the bending-active grid defines the curvature and provides temporary structural support during casting. Dome segmentation is derived from polyhedral geometry, enabling the off-site prefabrication of repeatable panels for subsequent on-site assembly. Two physical prototypes, a 1:5 scale gypsum panel and a 1:2 scale concrete panel, were fabricated to evaluate the feasibility of this method. Results from both fabrication and simulation indicate that this approach may offer a viable alternative to rigid molds for producing curved concrete structures.