Shear Strength of Tapered Wood Beams

by J. Y. Liu, Engr.; Forest Products Lab., Forest Service, U.S. Dept. of Agric., P.O. Box 5130, Madison, Wisc. 53705,

Serial Information: Journal of the Structural Division, 1981, Vol. 107, Issue 5, Pg. 719-731

Document Type: Journal Paper

Discussion: Gutkowski R. M. (See full record)
Closure: (See full record)

Abstract: The analysis of a size-strength relationship for the shear strength of rectangular wood beams based on Weibull's theory of brittle failure has been extended to cover tapered wood beams. The important design parameters have been identified in the analysis. The numerical data for Douglas fir beams are presented in graph form, making it straightforward to extend the results to other wood species. The analysis of the present work is two-dimensional, and is general enough to consider all practical loading conditions in the plane. However, only a few important loading conditions are considered in generating the design curves for Douglas fir. Design procedures are illustrated by numerical examples.

Subject Headings: Wood beams | Shear strength | Failure analysis | Structural strength | Numerical methods | Two-dimensional analysis | Load factors |

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