The industrial process adds to engineering wood
products features absent in solid wood, with homogeneous structure
and reduced defects, improved physical and mechanical properties,
bio-deterioration, resistance and better dimensional stability,
improving quality and increasing the reliability of structures wood.
These features combined with using fast-growing trees, make them
environmentally ecological products, ensuring a strong consumer
market. The wood I-joists are manufactured by the industrial profiles
bonding flange and web, an important aspect of the production of
wooden I-beams is the adhesive joint that bonds the web to the
flange. Adhesives can effectively transfer and distribute stresses,
thereby increasing the strength and stiffness of the composite. The
objective of this study is to evaluate different resins in a shear strain
specimens with the aim of analyzing the most efficient resin and
possibility of using national products, reducing the manufacturing
cost. First was conducted a literature review, where established the
geometry and materials generally used, then established and analyzed
8 national resins and produced six specimens for each.
 P. Fisette, “The evolution of engineered wood I-joists (Department of
Natural Resources Conservation. Building Materials and Wood
Conservation),” Amherst, MA: University of Massachusetts, 2006.
 R. J. Ross, J.R. Erickson, I-Joists (Natural Resources Research
Institute). Madison, WI: University of Minnesota Duluth, 2006, chapter
 J. L. N. Góes, Nailed Timber Beams with I Composed Section.
(Dissertation Msc. in Structural Engineering), São Carlos School of
Engineering, University of São Paulo, 2002.
 G. C. Stamato, C. J. Calil, Resistance of inlay of plywood. (Dissertation
Msc. In Structural Engineering), São Carlos School of Engineering,
University of São Paulo, 2002, Book, n. 18, p. 49-76.
 Engineered Wood System. APA Understanding Engineered Wood
Products – Construction Guide. Form Nº E30, Tacoma, WA, United
 Racher, P., Bocquet, J. F., Bouchair, A. Effect of web stiffness on the
bending behaviour of timber composite I-beams. Universidade de Blaise
Pascal, Campus de Cézeaux – França, 2005.
 Forest Products Laboratory. Wood Handbook – Wood as an engineering
material. Gen Tech. Rep. FPL-GTR-110. Madison, WI: U.S.
Department of Agriculture, Forest Service, Forest Products Laboratory.
 R. J. Leichti; R. H. Falk; T. L. Laufenberg, Prefabricated wood I-Joist:
an industry overview. Forest Product Journal, v.40, n.3, pp. 17, 1990.
 Y. Liu, Formaldehyde-free Wood Adhesives from Soybean Protein and
Lignin: Development and Characterization, Dissertation (Doctor of
Philosophy in Wood Science) – Oregon State University, 2005.
 R. M. Rowell, “Wood Chemistry and Wood Composites”. New York:,
Madison, WI, 2005, pp. 218–219
 Associação Brasileira de Normas Técnicas. NBR7190 – Design of
timber structures. Rio de Janeiro, 1997.