Exploring the potential of equilibrium-based methods in additive manufacturing: the Digital Bamboo pavilion
Abstract
Additive manufacturing allows using naturally grown structural elements in combination with 3D printed components, aiming to foster a more sustainable building culture. However, from a structural perspective, the combined use of natural and artificial materials introduces new uncertainties and challenges in relation to the design and analysis of the global load-bearing behavior of structures, as well as their connection systems. In this context, equilibrium-based methods derived from the lower bound theorem of the theory of plasticity are particularly effective since they are not restricted to a specific structural typology, material, or scale. This paper illustrates the application of equilibrium-based methods such as strut-and-tie modeling and graphic statics to the structural design and analysis of a full- scale demonstrator, the Digital Bamboo pavilion. The load-bearing system of the pavilion is a bamboo space frame reinforced by post-tensioned cables. The bamboo elements are connected via bespoke 3D printed nylon and steel connections. Thanks to the combination of natural and artificial materials, the Digital Bamboo exhibits a filigree high-performance geometry that goes beyond the ordinary space frame architecture. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000594566Publication status
publishedBook title
Proceedings of the IASS/APCS 2022 Beijing Symposium: Next Generation Parametric DesignJournal / series
Proceedings of IASS Annual SymposiaVolume
Publisher
International Association for Shell and Spatial StructuresEvent
Subject
Space frame; equilibrium-based methods; bamboo; bespoke connections; additive manufacturingOrganisational unit
03800 - Schwartz, Joseph (emeritus) / Schwartz, Joseph (emeritus)
09566 - Dillenburger, Benjamin / Dillenburger, Benjamin
02284 - NFS Digitale Fabrikation / NCCR Digital Fabrication
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