Funicular form-finding for planar quad gridshells
DOI:
https://doi.org/10.11606/gtp.v18i2.196944Keywords:
Rigid Gridshells, Funicular shape, Planar quad meshAbstract
The funicular shell forms follow the history of architecture, engineering and construction since antiquity, and this system has both the advantage of being compatible with stone materials and the strength to reach large spans. With industrial development and especially since the 20th century, there was a great development on construction of reticulated versions of these shells, bringing with it several advantages in architectural and constructive aspects. Lately, there has been a consolidation of numerical formulations methods for obtaining the funicular form, but with the recent development of computers and parametric tools, there is a diversified opportunity for implementing these methods in computational algorithms. However, it is not clearly reported in the literature how these implementations can be performed in the parametric tools or digital platforms available. In this article, the results of experiments of these computational algorithms implementations used to obtain the funicular shape, developed in the Grasshopper visual programming environment, are presented. Additionally, to bring constructive efficiency, algorithms for remesh, planarity measurement and planarization of quadrangular faces in polygonal meshes were implemented and tested. The experiments showed valid results, comparing the tested methods performances and clarifying the variability of different results that these processes can generate. These results contribute to the development of teaching and the design and construction of rigid gridshells.
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