Power-Actuated Fasteners Connecting High-Strength Steel Plate to Mild Steel Plate under Monotonic Shear Loading
Publication: Journal of Structural Engineering
Volume 146, Issue 9
Abstract
This research proposes an innovative method utilizing power-actuated fasteners (PAFs) for the shear connection joining cold-formed steel (CFS) plates to hot-rolled steel (HRS) plates. An experimental program comprising 66 single-lap-joint shear strength tests was conducted to investigate the behavior of the connectors and connections under quasi-static monotonic loading. The parameters studied were the thickness of the CFS sheet, the strength of the base material (i.e., HRS), the diameter of the fastener, and the manufacturers of the fasteners. Fasteners from two different companies, Hilti and Ramset, were used in the program to ensure diversity. Three failure modes were captured including (1) bearing of CFS sheet, (2) shear fracture of the fastener, and (3) pullout by shear from the HRS sheet. The test results are compared with the predictions of the equations the Australian/New Zealand Standard for cold-formed steel structures or the North American Specification for cold-formed steel structural members. It is revealed that the equation for the bearing capacity results in unconservative predictions for the specimens tested. Meanwhile, the predictions of shear fracture and pullout by shear underestimate the actual strength of the connections.
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Acknowledgments
This research was supported by the Australian Research Council/Discovery Project through grant ID DP160104640 and the University of Sydney. The first author’s research degree was supported by the Dean’s Faculty of Engineering and Information Technologies PhD Scholarship for Vietnam, the University of Sydney. The steel sheets were provided by BlueScope Steel. The HILTI fasteners and charges were provided by Hilti.
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Published In
Journal of Structural Engineering
Volume 146 • Issue 9 • September 2020
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Apr 18, 2019
Accepted: Apr 22, 2020
Published online: Jul 3, 2020
Published in print: Sep 1, 2020
Discussion open until: Dec 3, 2020
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