Experimental analysis of cold-formed steel-to-timber connections with inclined screws
Author(s)
Vella, Nathan
Gardner, Leroy
Buhagiar, Spiridione
Type
Journal Article
Abstract
An experimental investigation into the behaviour of connections between cold-formed steel and timber components, formed with inclined screws, is presented. A series of material tests was firstly carried out to assess the behaviour and limitations of each component of the system under investigation. These were supplemented by three types of interaction test: timber embedment, screw head pull-through and screw thread withdrawal, all aimed at developing a better understanding of the behaviour of the different components of the connection. The slip modulus and peak load-carrying capacity of twelve connection configurations were determined through a series of push-out tests. The results obtained were compared to the typical benchmark arrangement in which the screws were driven in perpendicular to the steel-timber interface. Component variations included the type of timber – particle board and plywood, the thickness of the steel – 1.5 mm and 2.4 mm thick, the inclination of the screws – 0° and 45°, and the presence or not of wings on the screws. The results showed that non-winged screws inclined at 45° gave up to about a 30% increase in peak load-carrying capacity and about a 140% increase in slip modulus when compared to the reference specimen.
Date Issued
2020-04
Date Acceptance
2020-02-09
Citation
Structures, 2020, 24, pp.890-904
ISSN
2352-0124
Publisher
Elsevier BV
Start Page
890
End Page
904
Journal / Book Title
Structures
Volume
24
Copyright Statement
© 2020 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
https://www.sciencedirect.com/science/article/pii/S2352012420300618?via%3Dihub
Subjects
0905 Civil Engineering
1202 Building
Publication Status
Published online
Date Publish Online
2020-02-21