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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Shell Structures

Elasto-plastic buckling strength of lattice shells shape-optimized for bending strain energy or linear buckling load

< Table of Contents for Shell Structures
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Shell Structures
  • Pages: 10
  • Title: Elasto-plastic buckling strength of lattice shells shape-optimized for bending strain energy or linear buckling load
  • Author(s): Shiun Ohuchi, Kenji Yamamoto
  • Keywords: single layer lattice shell, elasto - plastic buckling, Shape optimization, bending strain energy, linear buckling load
Abstract
The spatial structures of compression resistance type, such as lattice shells, enable large spans by the mechanical effects of curvature. Because of the advancement of construction technology in recent years, it is possible to build structures with complex shapes. As achievable structural shapes are increased, determination of the structural shapes becomes more important. From this background, the shape optimizations are often applied to the shape determination of lattice shells. However, the buckling strength of shape-optimized lattice shells is not necessarily fully examined in the previous studies. In this study, the shape optimizations of the lattice shells in which the bending strain energy and the linear buckling load are the objective function are performed, and the elasto-palstic buckling strength of the optimal shapes are investigated in detail.

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