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IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints


IASS Symposium 2014

SESSION: Structural Morphology 3: Morphology and Transformables

Multi-criteria optimisation of a barrel vault structure for emergency relief

< Table of Contents for Structural Morphology 3: Morphology and Transformables
  • Proceedings Name: IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints
  • ISSN: (Electronic Version) 2518-6582
  • Session: Structural Morphology 3: Morphology and Transformables
  • Title: Multi-criteria optimisation of a barrel vault structure for emergency relief
  • Author(s): Aushim KOUMAR, Tine TYSMANS, Niels DE TEMMERMAN, Rajan FILOMENO COELHO, Lara ALEGRIA MIRA
  • Keywords: multi-criteria optimisation, shelter, humanitarian aid, numerical simulation, scissor structure
Abstract
Humanitarian and development organisations have a vital task to provide shelter assistance for the affected population once they are hit by a hazard. Experts on the field noted the need for collective service tents (which are used for field hospitals, community centres, storage rooms, etc.) with a higher structural performance and with a faster erecting method than the currently used ones. In this paper, we investigate the potential of using deployable scissor structures as alternative to the current collective service tents. After explaining the concept of using deployable structures, a size and shape optimisation of a barrel vault scissor structure is presented for two spans (6m and 8m). For this, a multi-criteria evolutionary optimisation algorithm, NSGA-II is used, with respect to two different objectives: the mass and the compactness. Because these two objectives conflict, a Pareto-front with optimal solutions is obtained per span. The designer can choose a solution form the Pareto set according to the project’s boundary conditions and his own preferences. The results also show the high potential of evolution algorithms for the optimisation of scissor structures.

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