Confined Bamboo Guadua LaminatE – CBGL
A. Cruz, C. Takeuchi
Abstract. The constructive technique called Confined Bamboo Guadua Laminate (CBGL) is an improvement of the mechanical properties of wood with low specifications, by means of the reinforcement of laminates of Bamboo Guadua angustifolia Kunth, in a composite section. The CBGL is a composite section of pieces of softwood that confine laminates of guadua. Thus, low mechanical specification wood can be used for structural constructions with the CBGL technique. Compression parallel fiber tests were carried out for wood, bamboo, Guadua angustifolia Kunth laminates and for the composite section of wood and bamboo guadua laminates, to demonstrate the advantages of the CBGL construction technique. The density was determined for each material. The elasticity modulus (E), the maximum stress (σmáx) and the proportionality limit stress (σLP) were obtained with the results of stress–strain graph tests. The experimental data of the composite section were compared with theoretical and numerical data analysis, demonstrating the efficiency of the CBGL constructive technique. Wood from reforestation and fast-growing processes, with the CBGL construction technique, can accomplish structural requirements and become an alternative to hardwood with high mechanical resistance, but longer growing time. In this way, not only the selection processes of structural elements for constructions in wood are favored, but also, the environment.
Keywords
Bamboo, Wood, Laminated, Elastic Modulus, Ecoconstruction
Published online , 12 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: A. Cruz, C. Takeuchi, ‘Confined Bamboo Guadua LaminatE – CBGL’, Materials Research Proceedings, Vol. 7, pp 313-324, 2018
DOI: https://dx.doi.org/10.21741/9781945291838-28
The article was published as article 28 of the book Non-Conventional Materials and Technologies
References
[1] H. T. Li, Q. S. Zhang, D. S. Huang, and A. J. Deeks, “Compressive performance of laminated bamboo.,” Compos. Part B Eng., vol. 54, no. 1, pp. 319–328, 2013. https://doi.org/10.1016/j.compositesb.2013.05.035
[2] M. C. Yeh and Y. L. Lin, “Finger joint performance of structural laminated bamboo member,” J. Wood Sci., vol. 58, no. 2, pp. 120–127, 2012. https://doi.org/10.1007/s10086-011-1233-7
[3] C. P. Takeuchi, “Caracterización mecánica del bambú guadua Laminado para uso estructural,” Universidad Nacional de Colombia., 2014.
[4] E. M. Reyes Ramirez and G. Rayo Morales, “Comportamiento a Flexión de Vigas de Madera de Gran Longuitud de Sección Compuesta Reforzadas con Láminas Pegadas Prensadas de Guadua ‘Angustifolia Kunth’.,” Universidad Militar Nueva Granada, 2014.
[5] A. Cruz Guzmán, “Módulo de elasticidad a compresión de un material compuesto de madera en su núcleo y guadua laminada pegada en el exterior,” 2017.
[6] L. F. López and J. F. Correal, “Exploratory study of the glued laminated bamboo guadua angustifolia as a structural material,” Estud. Explor. los laminados bambú guadua angustifolia como Mater. estructural, vol. 11, no. 3, pp. 171–182, 2009.
[7] J. F. Correal, J. S. Echeverry, F. Ramírez, and L. E. Yamín, “Experimental evaluation of physical and mechanical properties of Glued Laminated Guadua angustifolia Kunth,” Constr. Build. Mater., vol. 73, pp. 105–112, 2014. https://doi.org/10.1016/j.conbuildmat.2014.09.056
[8] C. S. Verma, N. K. Sharma, V. M. Chariar, S. Maheshwari, and M. K. Hada, “Comparative study of mechanical properties of bamboo laminae and their laminates with woods and wood based composites,” Compos. Part B Eng., vol. 60, pp. 523–530, 2014. https://doi.org/10.1016/j.compositesb.2013.12.061
[9] W. M. Barreto Castillo, “Evaluación de guadua laminada pegada aplicada a propuesta de reticulado plano,” 2003.
