FORMFINDING AND BUCKLING ANALYSIS OF THREE-WAY KAGOME TIMBER LATTICED SHELLS USING GENERAL-PURPOSE FE SOFTWARE

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  • 汎用FEMソフトを用いた木造三方向籠目格子シェルの形状解析と座屈解析手法

Abstract

<p>In this paper, a simple and practical method is proposed which enables formfinding analysis of a timber three-way latticed kagome shells and following buckling analysis, using general-purpose FE software without using specialized software for formfinding. In addition, the elastic buckling properties of the kagome shells formed by formfinding are investigated. In-plane shear stiffness of three-way lattices is so high that fixing the intersections does not allow the lattice planes to deform into a shell geometry. Therefore, the formfinding is carried out with virtual slide mechanism at the intersections enables slide of the members along the shell-surface without additional axial stress.</p>

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