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Bending strength of water-soaked glued laminated beams

Informally Refereed
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Abstract

The effects of water soaking on the bending strength and stiffness of laminated timber were determined by deriving wet-dry ratios for these properties. Values for these ratios, when compared to currently recommended wet use factors, confirm the value now used for modulus of rupture. For modulus of elasticity, the reduction due to water soaking was found to be less than that now recommended. Results will be useful to organizations preparing design standards for heavy timbers subject to potentially high moisture contents.

Keywords

Water, soaking, bending strength, stiffness, modulus of elasticity, beams, moisture content, laminated wood, specifications, adhesives, wet-dry ratios, wet-use factor, modulus of rupture, design criteria, glulam, water proof adhesives, preservative treatment, Douglas-fir, southern pine, laminated wood

Citation

Wolfe, Ronald W.; Moody, Russell C. 1978. Bending strength of water-soaked glued laminated beams. Gen. Tech. Rep. FPL-307. Madison, WI : U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 12 pages.
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