Empirical Punching Shear Failure Theory for Oriented Strand Boards: Preliminary Study
Publication: Journal of Structural Engineering
Volume 132, Issue 3
Abstract
In characterizing the mechanical properties of oriented strand boards (OSBs), the punching shear capacity is not normally determined. Any attempt at developing a failure theory for punching shear from the planar shear strengths and a hypothetical shear perimeter that is similar to the approach in concrete should be most welcome by OSB designers. Fortunately, the planar shear strengths of OSBs are gradually being documented. The planar shear strengths and the punching shear capacities under a 25-mm-diameter load applicator of six OSB panels with thicknesses ranging from 9 to 18 mm have enabled a preliminary assessment of the optimum position of the hypothetical shear perimeter in an empirical punching shear failure theory for OSB. It is shown that a hypothetical shear perimeter that is a distance equal to the thickness away from the boundary of the loaded area enables the prediction of punching shear capacities that are roughly 75% of the measured punching shear capacity for one panel and within 10% of the measured punching shear capacities for the other five panels. Given that punching shear capacity of OSBs is rarely documented, and subject to future validation by other OSB panels, this empirical failure theory could be potentially useful for estimating the punching shear capacity of oriented strand board.
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Acknowledgments
The punching shear and planar shear tests described in this paper were carried out at the University of Surrey, U.K., and the Centre Technique due Bois et de l’Ameublement, France, respectively, as part of a program of research on the mechanical properties of oriented strand board that was supported by the European Committee for Standardization.
References
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Information
Published In
Journal of Structural Engineering
Volume 132 • Issue 3 • March 2006
Pages: 484 - 487
Copyright
© 2006 ASCE.
History
Received: Sep 23, 2003
Accepted: Dec 3, 2004
Published online: Mar 1, 2006
Published in print: Mar 2006
Notes
Note. Associate Editor: J. Daniel Dolan
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