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Dowel deformations in multi-dowel LVL-connections under moment loading
Linnaeus University, Faculty of Technology, Department of Building Technology. Vienna University of Technology, Austria.ORCID iD: 0000-0002-7829-4630
Vienna University of Technology, Austria.
Vienna University of Technology, Austria.
Lund University, Sweden.ORCID iD: 0000-0002-5333-0682
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2015 (English)In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 10, no 3, 216-231 p.Article in journal (Refereed) Published
Abstract [en]

The aim of the experimental study presented herein is the assessment and quantification of the behavior of individual dowels in multi-dowel connections loaded by a bending moment. For this purpose, double-shear, steel-to-timber connections with nine steel dowels arranged in different patterns and with different dowel diameters were tested in four-point bending. In order to achieve a ductile behavior with up to 7° relative rotation, the connections were partly reinforced with self-tapping screws. The reinforcement did not influence the global load–deformation behavior, neither for dowel diameters of 12 mm nor for 20 mm, as long as cracking was not decisive. The deformation of the individual dowels was studied by means of a non-contact deformation measurement system. Thus, the crushing deformation, that is, the deformation at the steel plate, and the bending deformation of the dowels could be quantified. In the case of 12 mm dowels, the bending deformation was larger than the crushing deformation, while it was smaller in the case of 20 mm dowels. Moreover, dowels loaded parallel to the grain showed larger bending deformations than dowels loaded perpendicular to the grain. This indicates that the loading of the individual dowels in the connection differs depending on their location.

Place, publisher, year, edition, pages
2015. Vol. 10, no 3, 216-231 p.
Keyword [en]
bending moment, Dowel connection, ductility, load distribution, reinforcement, timber, Bending moments, Crushing, Deformation, Fasteners, Deformation behavior, Four point bending, Load distributions, Parallel to the grains, Relative rotation, Self-tapping screws, Timber connections, Bending (deformation)
National Category
Building Technologies
Research subject
Technology (byts ev till Engineering), Civil engineering
URN: urn:nbn:se:lnu:diva-46194DOI: 10.1080/17480272.2015.1070372ISI: 000368739700002ScopusID: 2-s2.0-84939431526OAI: diva2:852864
Available from: 2015-09-10 Created: 2015-09-10 Last updated: 2016-09-23Bibliographically approved

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Bader, Thomas K.Serrano, ErikEnquist, BertilDorn, Michael
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