Structural wood beams are a form of rational use of wood in construction of structures; being obtained through the association of sawn pieces, and allowing the use of boards with various sections and lengths, as well as combinations with a differentiated quality wood. To achieve the maximum strength of a Glulam, you can use the mechanical classification of pieces by means of the dynamic system. The goal of the study was to establish a correlation between the static and dynamic methods of classification of glulam beams. The work was developed with the use of pieces of saw wood of Pinus taeda and adhesive phenol resorcinol formaldehyde. The beam fabrication process concerned the classification of the pieces, correction machining and lamella formation, as well as the assemblage and pressurization of the beams. The assays, nevertheless, involved the determination of the elasticity module by means of the stress wave method and a universal machine of assays. The results were analyzed by means of the regression analysis for the establishment of the equation of adjusting the correlation. The classification system used to select pieces was insufficient to obtain the maximum values of the modulus of elasticity; the correct positioning of lamellas by means of the method of dynamic classification had as a direct consequence the increase of the elasticity module of beam and there was a low correlation between the methods of obtaining the modulus of elasticity of the beams, it is not possible for the development of an appropriate equation of correlation between the methods tested.
Glulam; Classification of beams; Stress wave method
