連続体近似法による2方向格子シェルの座屈耐力評価

概要

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The present paper discusses a method to estimate the elasto-plastic buckling loads of two-way grid shells. The method first applies the concept of shell analogy to derive linear buckling loads in a mathematical form, second calculates the generalized slenderness of buckling of members using linear buckling loads, and finally estimates the elasto-plastic buckling loads based on the concept of column strength curves in terms of generalized slenderness. In the mathematical form for linear buckling loads, the in-plane shear rigidity is reconfirmed to be the most important together with the out-of-plane bending rigidities. The buckling strength in elasto-plastic region, based on the present method, is compared with those obtained by elasto-plastic nonlinear analysis and verified very accurate.
一般社団法人日本建築学会の論文
2000-03-20