原文传递
Laterally Offset RHS X-Connections
| 题名： | Laterally Offset RHS X-Connections |
| 正文语种： | eng |
| 作者： | Bu, Xiao Ding;Wei, Fei;Packer, Jeffrey A. |
| 作者单位： | Univ Toronto Dept Civil & Mineral Engn 35 St George St Toronto ON M5S 1A4 Canada;Cast Connex Corp 100 Consilium Pl Suite 311 Toronto ON M1H 3E3 Canada;Univ Toronto Dept Civil & Mineral Engn 35 St George St Toronto ON M5S 1A4 Canada |
| 关键词： | Rectangular hollow sections;Connections;Branch offset;Experiments;Failure mode models;Finite element models;Parametric study;Hollow structural sections |
| 摘要： | The design of welded rectangular hollow section (RHS) truss-type connections, in which branches are laterally offset from the chord centerline, is not included in any of the current design codes and standards. To provide design recommendations for this type of connection, a series of studies have been performed on cold-formed welded RHS-to-RHS X-connections with branch lateral offset. An experimental study of 14 full-scale laboratory tests has been conducted, including 4 nonoffset control specimens and 10 laterally offset specimens. Two failure mode models representing the behavior of such connections have been proposed, and their validity is evaluated by the experimental results. Following the experimentation, a numerical study with a broader range of parameters was performed on such RHS connections, where nonlinear finite element (FE) models were created and validated against the laboratory tests. Based on the results of the experimental and numerical studies, one of the analytical models-a combined yield-line mechanism-is recommended to be used for the design of laterally offset RHS X-connections. . (c) 2020 American Society of Civil Engineers. |
| 出版年： | 2021 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 147 |
| 期： | 1 |
| 页码： | 04020286.1-04020286.18 |
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