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Determination of shearing stiffness parameters to design multi-layer spruce beams using welding-through wood dowels

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Abstract

This paper presents a methodology to characterize the secant shearing stiffness of welding-through wood dowels used in multi-layer spruce beams. Welding-through wood dowel’s stiffness behaviour as well as isostatic multi-layer beams’ behaviour were investigated experimentally. These elements are made by a specifically designed machine to guarantee repeatability. A model of finite elements was developed to reproduce the bending behaviour of the beams tested from non-linear connection behaviour. This model is then used to study the influence of parameters such as: layer number, spacing of dowels, load type (concentrated or distributed), strength class and beam span. After a sensibility analysis, a parameterized regression model allows to obtain k ser and k u fastener secant stiffness in compliance with EN 1995-1 standard to design multi-layer beams in an elastic analytical model way. This model is based on the work by Kreuzinger (1999).

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Authors and Affiliations

  1. ENSTIB/Lermab, 27 rue Philippe SÉGUIN, CS 60036, 88026, Épinal Cedex, France

    Stéphane Girardon, Charles Barthram, Ludovic Resch, Jean-François Bocquet & Pascal Triboulot

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  1. Stéphane Girardon
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  2. Charles Barthram
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  3. Ludovic Resch
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  4. Jean-François Bocquet
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  5. Pascal Triboulot
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Correspondence to Stéphane Girardon.

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Girardon, S., Barthram, C., Resch, L. et al. Determination of shearing stiffness parameters to design multi-layer spruce beams using welding-through wood dowels. Eur. J. Wood Prod. 72, 721–733 (2014). https://doi.org/10.1007/s00107-014-0834-4

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  • DOI: https://doi.org/10.1007/s00107-014-0834-4

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