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A platform for research: civil engineering, architecture and urbanism
Stability of Statics Aware Voronoi Grid-Shells
Highlights A hex-dominant, statics aware remeshing pattern for free form grid-shells is proposed. Its structural efficiency was assessed through geometrically non-linear analyses. A comparative analysis was established between our and tri and quad grid-shells. Stability and imperfection sensitivity (shape and amplitude) were deeply investigated.
Abstract Grid-shells are lightweight structures used to cover long spans with few load-bearing material, as they excel for lightness, elegance and transparency. In this paper we analyze the stability of hex-dominant free-form grid-shells, generated with the Statics Aware Voronoi Remeshing scheme introduced in Pietroni et al. (2015). This is a novel hex-dominant, organic-like and non uniform remeshing pattern that manages to take into account the statics of the underlying surface. We show how this pattern is particularly suitable for free-form grid-shells, providing good performance in terms of both aesthetics and structural behavior. To reach this goal, we select a set of four contemporary architectural surfaces and we establish a systematic comparative analysis between Statics Aware Voronoi Grid-Shells and equivalent state of the art triangular and quadrilateral grid-shells. For each dataset and for each grid-shell topology, imperfection sensitivity analyses are carried out and the worst response diagrams compared. It turns out that, in spite of the intrinsic weakness of the hexagonal topology, free-form Statics Aware Voronoi Grid-Shells are much more effective than their state-of-the-art quadrilateral counterparts.
Stability of Statics Aware Voronoi Grid-Shells
Highlights A hex-dominant, statics aware remeshing pattern for free form grid-shells is proposed. Its structural efficiency was assessed through geometrically non-linear analyses. A comparative analysis was established between our and tri and quad grid-shells. Stability and imperfection sensitivity (shape and amplitude) were deeply investigated.
Abstract Grid-shells are lightweight structures used to cover long spans with few load-bearing material, as they excel for lightness, elegance and transparency. In this paper we analyze the stability of hex-dominant free-form grid-shells, generated with the Statics Aware Voronoi Remeshing scheme introduced in Pietroni et al. (2015). This is a novel hex-dominant, organic-like and non uniform remeshing pattern that manages to take into account the statics of the underlying surface. We show how this pattern is particularly suitable for free-form grid-shells, providing good performance in terms of both aesthetics and structural behavior. To reach this goal, we select a set of four contemporary architectural surfaces and we establish a systematic comparative analysis between Statics Aware Voronoi Grid-Shells and equivalent state of the art triangular and quadrilateral grid-shells. For each dataset and for each grid-shell topology, imperfection sensitivity analyses are carried out and the worst response diagrams compared. It turns out that, in spite of the intrinsic weakness of the hexagonal topology, free-form Statics Aware Voronoi Grid-Shells are much more effective than their state-of-the-art quadrilateral counterparts.
Stability of Statics Aware Voronoi Grid-Shells
Tonelli, D. (author) / Pietroni, N. (author) / Puppo, E. (author) / Froli, M. (author) / Cignoni, P. (author) / Amendola, G. (author) / Scopigno, R. (author)
Engineering Structures ; 116 ; 70-82
2016-02-29
13 pages
Article (Journal)
Electronic Resource
English
Stability of Statics Aware Voronoi Grid-Shells
| Online Contents | 2016
Statics and stability of prismatic frame-lattice shells
| Engineering Index Backfile | 1961
Summary of development of statics and dynamics of circular shells
| Engineering Index Backfile | 1955