Tensegrity Cushions

Formwork for Cast-in- Place Concrete Walls


  • Kristopher Palagi


This article presents a tensile, fabric formwork for casting structural concrete walls that utilizes a tensegrity space-frame system. Based on analytical and scaled physical modeling, a series of full-scale proof-of-concept concrete casts demonstrate the methods, techniques, and sequence of construction along with the variation and tolerances achieved. Presented as an alternative to current cast-in-place concrete construction techniques, the tensegrity formwork provides a base logic for novel and emergent behavior in the final form while demanding comparably minimal material, equipment, and labor skill-sets. Empirical testing of the proof-of-concept casts document three points of control: the formwork system's ability to maintain industry standard coverage of structural steel; an acceptable tolerance on the location of structural connections; and, a reliable formula for estimating concrete volume. Further development of the assembly will include the testing of structural connections along with embedding programmatic and environmental design responses.




How to Cite

Palagi, K. (2019). Tensegrity Cushions: Formwork for Cast-in- Place Concrete Walls. ARCC Conference Repository, 1(1). Retrieved from https://arcc-repository.org/index.php/repository/article/view/609