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Structural Behavior of Screwed Connections in Cold-Formed Steel Beams
| 题名： | Structural Behavior of Screwed Connections in Cold-Formed Steel Beams |
| 正文语种： | eng |
| 作者： | Minh Toan Huynh;Cao Hung Pham;Rogers, Cohn A.;Hancoc, Gregory J. |
| 作者单位： | Univ Sydney Sch Civil Engn Sydney NSW 2006 Australia;Univ Sydney Sch Civil Engn Sydney NSW 2006 Australia;McGill Univ Dept Civil Engn & Appl Mech Montreal PQ H3A 0G4 Canada;Univ Sydney Sch Civil Engn Sydney NSW 2006 Australia |
| 关键词： | Cold-formed steel;Screws;Screwed connections;Angle cleat |
| 摘要： | Two test series were carried out on angle cleat connections between cold-formed channels as beams and rectangular hollow sections as support members. The objective of the tests was to determine the effect of connection rotation from the beam on the shear capacity of the connection. Self-drilling screws were used to attach the channels to the angle cleats with the failure limit states always occurring in this part of the connection. A dual actuator test apparatus that could apply controlled displacement and rotation to the beams was used. The specimens contained different thicknesses of the channels, which allowed for two limit states involving failure modes of the screws fracturing in shear and bearing as well as tilting failure of the screws in the channel sheet material. The experimental results show the effect of rotation on reducing the shear capacity of the screwed connections. An analytical model for the connection is developed using the relation between the bearing force and deformation of the individual screw connections. (C) 2020 American Society of Civil Engineers. |
| 出版年： | 2021 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 147 |
| 期： | 3 |
| 页码： | 04020354.1-04020354.20 |
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