Effect of Openings on Oriented Strand Board Webbed Wood I-Joists
Publication: Journal of Structural Engineering
Volume 133, Issue 1
Abstract
Tests conducted on oriented strand board (OSB) webbed wood I-joists with web openings revealed that the typical failure mode was that the OSB fractured from tension zones around an opening, with cracks developing diagonally toward the joist flanges. The joist collapsed when the cracks reached the flanges. Finite-element models were developed using ABAQUS to simulate joist behavior. Material nonlinearity, crack propagation, and joist failure were dealt with by a user-defined subroutine. Good correlation was obtained between the test and the analytical results. The finite-element models were then used to investigate the effect of opening size and location on the behavior of joists. The lower bound and the upper bound of the load bearing capacity of joists with openings were found by finite- element modeling and were empirically expressed by polynomials.
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Acknowledgments
The writers acknowledge financial support from the School of the Environment, University of Brighton and support from James Jones & Sons Ltd. of the United Kingdom for providing the joists used in this study.
References
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Zhu, E. C., Guan, Z. W., Rodd, P. D., and Pope, D. J. (2005a). “Buckling of oriented strand board webbed wood I-joists.” J. Struct. Eng., 131(10), 1629–1236.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 133 • Issue 1 • January 2007
Pages: 145 - 149
Copyright
© 2007 ASCE.
History
Received: May 12, 2005
Accepted: Jun 21, 2006
Published online: Jan 1, 2007
Published in print: Jan 2007
Notes
Note. Associate Editor: J. Daniel Dolan
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