Design of restrained pneumatic formwork – Inverse form finding and materialisation for free form geometries
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Author / Producer
Date
2024
Publication Type
Conference Paper
ETH Bibliography
yes
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Abstract
This paper presents a method for the inverse design of restrained air-supported structures or pneumatic formwork. The proposed approach consists of two main steps. We first solve a best-fit optimisation using the force-density method. Considering the self-weight and air pressure, the optimisation determines an equilibrium force distribution in the membrane as a discrete network that closely approximates a given input surface. Subsequently, the force density results are materialised. By applying the finite element method, we tailor the material properties of the membrane, specifically adjusting its stiffness, to achieve the desired structural characteristics. To demonstrate the adaptability and effectiveness of our method, the paper concludes with a series of examples showcasing its application.
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Publication status
published
Editor
Book title
Proceedings of the IASS 2024 Symposium: Redefining the Art of Structural Design
Journal / series
Volume
2024
Pages / Article No.
17
Publisher
International Association for Shell and Spatial Structures (IASS)
Event
IASS 2024 Annual Symposium: Redefining the Art of Structural Design
Edition / version
Methods
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Geographic location
Date collected
Date created
Subject
pneumatic structure; force density method; finite element method; form-finding; inverse design
Organisational unit
03847 - Block, Philippe / Block, Philippe
Notes
Conference lecture on August 28, 2024
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