長大トラス構造物の全体座屈解析

概要

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Global buckling is an instability phenomenon of a truss structure, which means that the truss structure buckles as a whole, without any structural components buckling. For large-scale, slender-shaped truss structures, such global buckling must be taken into account as well as local buckling (the buckling of a truss member). In this paper, we formulate the global buckling conditions of truss structures of general topologies and propose an analysis method based on linearization. An iterative procedure is also developed for the case in which the geometrical deformation at the buckling point is too large to be neglected. Simulation studies are conducted with column-type and arch-type truss structures and the correctness of the proposed global buckling analysis approach is confirmed. We also discuss the relation between local and global buckling, based on the column-type truss.
社団法人日本機械学会の論文
1997-02-25