Abstract
The glued laminated lumber (glulam) beams technique is an efficient process for making sustainable use of wood. Fiber-reinforced polymers (FRPs) associated with glulam provide significant gains in terms of strength and stiffness, as well as modify the rupture mode of these structural elements. Certain natural fibers display sufficient mechanical properties to reinforce the polymer used in the glulam technique. This chapter presents a theoretical analysis considering the behavior of stressed lumber and fibers in glulam beam of Pinus sp. and Eucalyptus sp. with and without natural fiber-reinforced polymer (NFRP), and a numerical analysis evaluating the stresses and displacements in glulam beams using the finite element method. Curauá, bamboo, and jute fibers were used for reinforcement. NFRP introduced in the tensioned section of glulam beams guaranteed a gain of strength and stiffness in function of the thickness percentage of NFRP used. In terms of maximum stresses and vertical displacement, theoretical and numerical analyses provided analogous results.
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References
Amaya MLC (2013) Reforço de emendas dentadas com compósitos de fibras em pelas de madeira. Dissertação (Mestrado)—Universidade de São Paulo
Beaudoin JJ (1990) Handbook of fiber-reinforced concrete. Noyes, New Jersey
Bergmeister K, Luggin W (2001) Innovative strengthening of timber structures using carbon fibres. In: International association for bridge and structural engineering, Malta, Anais, pp 361–366
Buchanan AH (1990) Bending strength of lumber. J Struct Eng, ASCE. 116(5):1213–1229
Carvalho RF (2005) Compósito de fibra de sisal para uso em reforço de estruturas de madeira. São Carlos, Tese (Doutorado)—Universidade de São Paulo
Dagher HJ (1999) FRP—reinforced wood in bridge applications. In: 1st RILEM symposium timber engineering. Stockholm, Sweden. Anai, pp 591–598
Fiorelli J, Dias AA (2006) Fiberglass-reinforced glulam beams: mechanical properties and theoretical model. Mater Res 9:263–269
Fiorelli J, Dias AA (2011) Glulam beams reinforced with FRP externally-bonded: theoretical and experimental evaluation. Mater Struct 44:1431–1440
Frese M, Chen Y, Blad HJ (2010) Bending strength of spruce glulam. Eur J Wood Prod 67:277–286
García PR, Escamilla AC, García MNG (2013) Bending reinforcement of timber beams with composite carbon fiber and basalt fiber materials. Compos Pt B Eng 55:528–536
Gentry T (2011) Performance of glued-laminated timbers with FRP shear and flexural reinforcement. J Compos Constr 15:861–870
Guimarães SS (1984) Experimental mixing and moulding with vegetable fibre reinforced cement composite. In: International conference on development of low-cost and energy saving construction materials, Lehigh Valley, Pennsyvania, pp 37–42
Johnsson H, Blanksv ARD, Carolin A (2006) Glulam members strengthened by carbon fibre reinforcement. Mater Struct 40:47–56
Kalia S, Kaith BS, Kaur I (2009) Pretreatments of natural fibers and their application as reinforcing material in polymer composites—a review. Polym Eng Sci 49:1253–1272
Kim YJ, Harries HA (2010) Modeling of timber beams strengthened with various CFRP composites. Eng Struct 32:3225–3234
Lee JJ, Park JS, Kim KM, Kwon J (2005) Prediction of bending properties for structural glulam using optimized distributions of knot characteristics and laminar MOE. J Wood Sci 40:640–647
Lindyberg RF (2000) ReLAM: a nonlinear, probabilistic model for the analysis of reinforced glulam replace by: beams in bending. Maine-USA, Tese (Doutorado)—University of Maine
Segundinho PGA, Zangiácomo AL, Carreira MR, Dias AA, Lahr FAR (2013) Avaliação de vigas de madeira laminada colada de cedrinho (Erisma uncinatum Warm.). Cerne 19:441–449
Tingley D, Kent S (2001) Structural evaluation of fiber reinforced hollow wood beams. In: International association for bridge and structural engineering. Malta, Anais, pp 367–372
Triantafillou T, Deskovic N (1992) Prestressed FRP sheets as external reinforcement of wood members. J Struct Eng 118:1270–1284
Wallenberger FT (2002) Value-in-use of reinforcing fibers. In: Advanced fibers, plastics, laminates and composites. Materials research society, symposium proceedings, Warrendale, 702:151
Yeou-Fong L, Ming-Jer T, Ting-Fang W, Wei-Chou W (2014) A study on wood beams strengthened by FRP composite materials. Constr Build Mater 6:118–125
Acknowledgments
Research Foundation of the São Paulo State—FAPESP; National Council for Scientific and Technological Development—CNPq; Financier of Studies and Projects—FINEP and Coordination of Improvement of Higher Education Personnel—CAPES.
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Fiorelli, J., Rempe, N., Molina, J., Dias, A. (2015). Natural Fiber-Reinforced Polymer for Structural Application. In: Hakeem, K., Jawaid, M., Y. Alothman, O. (eds) Agricultural Biomass Based Potential Materials. Springer, Cham. https://doi.org/10.1007/978-3-319-13847-3_2
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DOI: https://doi.org/10.1007/978-3-319-13847-3_2
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