The Caravel heX-Mesh pavilion, illustration of a new strategy for gridshell rationalization - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue SN Applied Sciences Année : 2020

The Caravel heX-Mesh pavilion, illustration of a new strategy for gridshell rationalization

Résumé

The fabrication of a freeform structural envelope is usually a highly complex task. The costliest aspect is often the connections between the constitutive parts. The Caravel heX-Mesh Pavilion is a prototype that demonstrates a new rationalization strategy. Its structure, composed of a hexagonal grid of beams and cladding panels, is based on a geometry that rationalizes connections at two levels: firstly, nodes are free of geometrical torsion and are repetitive: only two types of nodes are used. Secondly, panels can easily be connected to the support beams as they are orthogonal to each other. The mechanical behavior is validated by finite-element analysis. We generate these meshes by numerical optimization from a smooth target surface, with an initialization derived from the asymptotic case and surface theory. The pavilion shows an alternative way of rationalizing a gridshell beyond the popular planar-quad meshes and circular/conical meshes. It also demonstrates a way to generate hexagonal gridshells which are not necessarily synclastic, this limitation being typically imposed to achieve planarity of cladding panels.
Fichier principal
Vignette du fichier
SNAS Caravel Mesh Pavilion.pdf (3.09 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03034639 , version 1 (01-12-2020)

Identifiants

Citer

Xavier Tellier, Sonia Zerhouni, Guillaume Jami, Alexandre Le Pavec, Thibault Lenart, et al.. The Caravel heX-Mesh pavilion, illustration of a new strategy for gridshell rationalization. SN Applied Sciences, 2020, 2 (4), ⟨10.1007/s42452-020-2561-2⟩. ⟨hal-03034639⟩
75 Consultations
114 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More