Bending Strength of Small Glulam Beams with a Laminated-Veneer Tension Lamination

Lumber laminated from 1/10- and 1/8-inch-thick plies was successfully used in a conventional laminating operation as the tension laminations of 19 small glulam beams. Compared to the design strength of beams with lumber-type tension laminations, the design strengths of beams with LV lumber may be 10 to 20 percent higher. This benefit was principally due to reduced variability in strength resulting in higher near-minimum strength values. Although results are not adequate to serve as a basis for a design specification, they provide data for evaluating the feasibility of using LV as tension laminations.

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