Extract

The research project presented in this paper aims to extend the repertoire of architectural design and construction. To achieve this purpose, research-through-design methods are used to match a commonly desired target geometry with a realistic and efficient materialisation strategy. The proposed approach has been tested through construction of practical prototypes that eventuated in a full-scale structure that performed well in a variety of outdoor conditions. The outcome of this work is a workflow for semi-automated skinning of complex graphs such as trusses or space frames. The project tests this workflow through an application to a topologically complex L-system. The L-system graph is parametrically skinned with a continuous, adjustable envelope. The outcomes of this skinning are materialised in fabric to produce a twelve-metre-long, wind-supported, airborne inflatable structure. This workflow is a novel extension of existing approaches to skinning and fabrication of structures based on complex graphs because it allows a hitherto unavailable, fabrication-ready geometric definition of joints between cylindrical and conical tubes of varying diameters. It is significant as a reusable approach to the geometric construction of such joints in a variety of materials and across multiple scales. Furthermore, it is interesting as an innovative prototype of possible wind-supported architectural structures.

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