原文传递
Stiffness Reduction of Cold-Formed Steel Structures Subject to Sectional Buckling and Yielding
| 题名： | Stiffness Reduction of Cold-Formed Steel Structures Subject to Sectional Buckling and Yielding |
| 正文语种： | eng |
| 作者： | Kim J. R. Rasmussen |
| 作者单位： | Univ. of Sydney |
| 关键词： | Cold-formed steel;Local buckling;Distortional buckling;Residual stress;Stiffness reduction |
| 摘要： | Abstract The paper develops a stiffness reduction factor to be used in geometric nonlinear beam-element type elastic analysis of cold-formed steel structures. The factor accounts for the reduction in flexural and warping torsion rigidities resulting from local and distortional buckling as well as residual stresses, particular to cold-formed steel structures. The purpose of applying the factor is to accurately account for the geometric second order effects when predicting the internal distributions of moments of cold-formed steel structural frames. The stiffness reduction factor arising from local and distortional buckling is first determined followed by the stiffness reduction factor caused by residual stresses. Subsequently, the two effects are combined in a single expression, which is a format suitable for incorporation in the North American specification for cold-formed steel structures, AISI-S100. |
| 出版年： | 2023 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 149 |
| 期： | 11 |
| 页码： | 1.1-1.9 |
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