Buckling of Oriented Strand Board Webbed Wood I-Joists
Publication: Journal of Structural Engineering
Volume 131, Issue 10
Abstract
Experimental work was conducted on oriented strand board webbed wood I-joists to investigate the buckling behavior. Both lateral buckling and local web buckling were witnessed in the tests. The two types of buckling were reproduced in the finite element simulations using ABAQUS. The buckling modes and usually overestimated buckling loads of a joist were obtained from linear eigenvalue buckling analysis. The buckling modes were then introduced into a joist as initial geometric imperfections to conduct nonlinear buckling analysis, and more reliable buckling loads were obtained. Based on statistics of the analytical results, the local web buckling capacity at a support was empirically expressed by the postbuckling load. The empirical formula was extended to local web buckling under a concentrated load applied to the upper flange, where a reduction in buckling load was made to take the effect of moment into account.
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Acknowledgments
The writers acknowledge with gratitude the financial support from the School of the Environment, Univ. of Brighton and the support from James Jones & Sons Ltd of the United Kingdom for providing the joists used in this study.
References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 131 • Issue 10 • October 2005
Pages: 1629 - 1636
Copyright
© 2005 ASCE.
History
Received: May 18, 2004
Accepted: Oct 15, 2004
Published online: Oct 1, 2005
Published in print: Oct 2005
Notes
Note. Associate Editor: J. Daniel Dolan
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