任意母線縁境界をもつ円筒網目シェル屋根の全体座屈解析 : その 3 不完全系の座屈性状

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In the previous paper (Part 2), the author studied numerically the general buckling behaviours of Cylindrical Reticulated Shell Roofs (C.R.S.R.) under perfect systems. However, C.R.S.R. constructed in practice, include inevitably both load and geometrical imperfections. Therefore, it is important to make clear how these imperfections have influence upon the general buckling of C.R.S.R.. In this paper (Part 3), the anthor tries to study numerically the buckling behavious with imperfections. In the §-2, considering (1) asymmetric load distributions with respect to the central generator line or (2) normal imperfection modes with half wave number from 1 to 4 into circumferential direction, geometrically analytical methods are developed in the same way as Part 1 by treating C.R.S.R. as continuum structures. Based upon this method, in the §-3 and §-4, the general buckling imperfections are studied numerically invoking the theory of elastic stability, in the case of isotropic reticular patterns, pinned or roller generator edges and various shell geometries.
社団法人日本建築学会の論文
1980-09-30