Optimization of gridshell bar orientation using a simplified genetic approach
BOUHAYA ; BAVEREL ; CARON
Type de document
ARTICLE A COMITE DE LECTURE REPERTORIE DANS BDI (ACL)
Langue
anglais
Auteur
BOUHAYA ; BAVEREL ; CARON
Résumé / Abstract
Gridshells are defined as structures that have the shape and rigidity of a double curvature shell but consist of a grid instead of a continuous surface. This study concerns those obtained by elastic deformation of an initially flat two-way grid. This paper presents a novel approach to generate gridshells on an imposed shape under imposed boundary conditions. A numerical tool based on a geometrical method, the compass method, is developed. It is coupled with genetic algorithms to optimize the orientation of gridshell bars in order to minimize the stresses and therefore to avoid bar breakage during the construction phase. Examples of application are shown.
Source
Structural and Multidisciplinary Optimization, num. 5, pp. 839-848 p.
Editeur
Springer Verlag (Germany)
