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Group-Theoretic Buckling Analysis of Symmetric Plane Frames
| 题名： | Group-Theoretic Buckling Analysis of Symmetric Plane Frames |
| 正文语种： | eng |
| 作者： | Kaluba, Chisanga;Zingoni, Alphose |
| 作者单位： | Univ Cape Town Dept Civil Engn Struct Engn & Mech Grp ZA-7701 Cape Town South Africa;Univ Cape Town Dept Civil Engn Struct Engn & Mech Grp ZA-7701 Cape Town South Africa |
| 摘要： | This paper presents a computationally efficient formulation based on group theory, for the buckling analysis of symmetric plane frames. Numerical examples ranging from simple frames with one vertical plane of symmetry to more complex configurations with multiple symmetry planes are considered. In contrast to conventional procedures for accounting for symmetry, group theory uses the full symmetry of the configuration, resulting in higher reductions of computational effort. Typically, the n-dimensional problem is decomposed into smaller problems that are independent of each other, permitting the buckling loads and mode shapes to be computed through the solution of problems of much smaller dimension. The approach also yields insights on the character of the buckling modes before detailed computations are carried out. (C) 2021 American Society of Civil Engineers. |
| 出版年： | 2021 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 147 |
| 期： | 10 |
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