Bamboo Reinforced Glulam Beams: An Alternative to CFRP Reinforced Glulam Beams

Article Preview

Abstract:

A research study was undertaken to investigate the mechanical performance of glulam beams reinforced by CFRP or bamboo. Local reinforcement is proposed in order to improve the flexural strength of glulam beams. The glulam beam is strengthened in tension and along its sides with the carbon fiber-reinforced polymer CFRP or bamboo. A series of CFRP reinforced glulam beams and bamboo reinforced glulam beams were tested to determine their load-deformation characteristics. Experimental work for evaluating the reinforcing technique is reported here. According to experiment results, the CFRP and bamboo reinforcements led to a higher glulam beam performance. The results show a considerably improved stiffness of the reinforced over the non-reinforced specimens. By using CFRP and bamboo reinforcements several improvements in strength may be obtained.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

545-552

Citation:

Online since:

September 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] A. André, Fibers for strengthening of timber structures, Research report, Luleå University of Technology, Division of Structural Engineering, (2006).

Google Scholar

[2] American Society for Testing and Materials (ASTM), Standard methods of testing on small clear specimens of timber. D143-94. ASTM Annual Book of Standards. West Conshohocken, Pa, (2006).

Google Scholar

[3] American Society for Testing and Materials (ASTM), Standard test methods for specific gravity of wood and wood-based materials. D2395-02. ASTM Annual Book of Standards. West Conshohocken, Pa, (2006).

Google Scholar

[4] American Society for Testing and Materials (ASTM), Standard test methods of static tests of lumber in structural sizes. D198-08. ASTM Annual Book of Standards. West Conshohocken, Pa, (2009).

Google Scholar

[5] M. Brunner, M. Schnueriger, Timber beams strengthened by attaching prestressed carbon FRP laminates with a gradiented anchoring device, Proceedings of the international symposium on bond behaviour of FRP in structures (BBFS 2005), (2005) 465-471.

Google Scholar

[6] J. Fiorelli, A. Alves Dias, Analysis of the strength and stiffness of timber beams reinforced with carbon fiber and glass fiber, Materials Research, 6(2) (2003) 193-202.

DOI: 10.1590/s1516-14392003000200014

Google Scholar

[7] P. Haller, J. Wehsener, Use of technical textiles and densified wood for timber joints. Proceedings RILEM Symposium on Timber Engineering, Stockholm, Sweden, (1999).

DOI: 10.1002/3527606211.ch10

Google Scholar

[8] Z. Martin, J. Stith, D. Tingley, Commercialisation of FRP reinforced glulam beam technology. Proceedings of the 6th World Conference on Timber Engineering WCTE, Whistler, Canada, (2000).

Google Scholar

[9] G. Patrick, The structural performance of FRP reinforced glued laminated beams made of homegrown Sitka spruce. Ph.D. Thesis, Queen's University, Belfast, Northern Ireland, (2004).

Google Scholar

[10] M. Romani, H. Blaß, Design model for FRP reinforced glulam beams. Proceedings of the International Council for Research and Innovation in Building and Construction (CIB), Working Commission W18 Timber Structures, Meeting 34, Venice, Italy, (2001).

Google Scholar

[11] R. Rowlands, R. Van Deweghe, T. Laufenberg, G. Krueger, Fiber-reinforced wood composites, Wood and Fiber Science, 18 (1986) 39-57.

Google Scholar

[12] M. Valluzzi, E. Garbin, C. Modena, Flexural strengthening of timber beams by traditional and innovative techniques, Journal of Building Appraisal, 3 (2007) 125–143.

DOI: 10.1057/palgrave.jba.2950071

Google Scholar