Structural and Multidisciplinary Optimization, volume 50, issue 5, pages 839-848
Optimization of gridshell bar orientation using a simplified genetic approach
Lina Bouhaya
1
,
Olivier Baverel
1, 2
,
Jean‐François Caron
1
1
Université Paris-Est, Laboratoire Navier (UMR 8205), CNRS, ENPC, IFSTTAR, Ecole des Ponts Paristech, Marne-la-Vallée, France
|
2
Ecole Nationale Supérieure d’Architecture de Grenoble, Grenoble Cedex 2, France
|
Publication type: Journal Article
Publication date: 2014-06-06
scimago Q1
SJR: 1.181
CiteScore: 7.6
Impact factor: 3.6
ISSN: 1615147X, 16151488
Computer Science Applications
Computer Graphics and Computer-Aided Design
Software
Control and Systems Engineering
Control and Optimization
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.
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