Plywood is one of the well known wood panel materials their panel sizes are standardized. After cutting plywood according to the required dimensions of the client needs production residues extent that further use is limited and reason is dimensions. In case to find application for these production residues, could significantly increase the use of plywood materials and it could be the step towards to non-waste production of plywood. Research of plywood physical and mechanical properties was done before and the resulting technology production residues specification was chosen for I-beam construction and research was carried out.
Research shows that plywood I-beam ultimate bending moment and stiffness values are higher than other manufacturers offered beams this parameter values used in the manufacture LVL (Laminated Veneer Lumber) and wood materials. Research shows that in several cases moment of resistance and stiffness in bending of birch plywood I-beam are higher than other producer’s characteristics. Also worth noting that in all cases tested beam width, depth and cross-sectional area is slightly smaller than the beam of other producer’s sizes. Characteristic for the tested beams is considerably below the other, is the mass.
Keywords: birch plywood, I-beam, strength, modulus of elasticity, stiffness
Authors
Lipinskis I.
Department of Wood Processing, Forest Faculty, Latvia University of Agriculture, Jelgava, Latvia
Spulle U.
Department of Wood Processing, Forest Faculty, Latvia University of Agriculture, Jelgava, Latvia
Tuherm H.
Department of Wood Processing, Forest Faculty, Latvia University of Agriculture, Jelgava, Latvia
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