Buckling Analysis and Optimal Design of Prestressed Spatial Structures using Symmetry

2014 Fiscal Year Final Research Report

• Project/Area Number: 24760458
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Building structures/materials
• Research Institution: Nagoya City University
• Principal Investigator: ZHANG Jingyao 名古屋市立大学, 芸術工学研究科(研究院), 准教授 (50546736)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 対称性 / 安定性 / 張力空間構造 / テンセグリティ / ケーブルネット / 形状決定 / 非線形解析 / 最適化

Outline of Final Research Achievements

Prestressed spatial structures, including membrane structures, cable-domes and tensegrity structures, are very light due to the introduction of prestress in their structural elements. Hence, they can be used as long-span structures to cover a very large space withouth columns, and they are very strong in earthquakes.
However, it is difficult to determine their (self-equilibrated) configurations as expected by the designers due to the existence of prestress; and moreover, their stability at self-equilibrium state and buckling behavior while subjected to external loads are great concerns in the design of these structures. In this study, we are to present novel design methodologies for these problems, especially making use of their symmetry.

Free Research Field

建築構造