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Journal Articles Automation in Construction Year : 2018

Form finding of nexorades using the translations method

Romain Mesnil
Cyril Douthe
Olivier Baverel
  • Function : Author
  • PersonId : 1031556
Tristan Gobin
  • Function : Author

Abstract

This article proposes a new computational method for the form-finding of nexorades, also called reciprocal frames in the literature. The method is based on the translations of members forming the initial layout. It is shown that the two geometrical quantities defining nexorades-eccentricity and engagement length-depend linearly on the transformation parameters. The method introduced in this article is thus based on linear algebra, so that fitting problems can be formulated as simple quadratic optimisation problems under linear constraints. The proposed method is therefore fast, simple to implement, robust and can be applied to various grid patterns. Furthemore, the proposed framework preserves planar facets. This paper proposes thus a new structural system where the nexorade is braced by planar facets. The feasibility of this structural system and of the computational framework introduced in this article is demonstrated by the fabrication of a 50m 2 timber pavilion.
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Dates and versions

hal-01899086 , version 1 (19-10-2018)

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Romain Mesnil, Cyril Douthe, Olivier Baverel, Tristan Gobin. Form finding of nexorades using the translations method. Automation in Construction, 2018, 95, pp.142-154. ⟨10.1016/j.autcon.2018.08.010⟩. ⟨hal-01899086⟩
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