2局面構成のブレース補剛直交格子ドームの弾塑性座屈耐力 : 新構造形式の単層格子ドームの可能性の検討

概要

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This paper investigates the effectiveness of a new two-way dome stiffened by a diagonal bracing system. The dome is composed of orthogonal arches situated at diffrent level. The two sets of surfaces, each including arches in each direction, are connected each other by a bracing system in a form of pyramid truss system. Based on the results of elasto-plastic buckling analysis, considering several severe loading cases of uniformly distributed loads and non-uniformly distributed loads, this newly proposed dome is proved to have a high performance in elasto-plastic buckling comparabl to a ordinary two-way single layer lattice dome stiffened by diagonal braces. Also, this dome is assured to be effective with respect to material consumption with a large ratio of elasto-plastic buckling load to weight. Finally, it is confirmed that the proposed dome is feasible at locations with heavy snow design loads.
一般社団法人日本建築学会の論文
2010-03-27