Experimental and analytical investigation on CFRP strengthened glulam laminated timber beams: Full-scale experiments

Vahedian, A; Shrestha, R; Crews, K

Experimental and analytical investigation on CFRP strengthened glulam laminated timber beams: Full-scale experiments

Vahedian, A Shrestha, R

Crews, K

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Publication Type:: Journal Article
Citation:: Composites Part B: Engineering, 2019, 164 pp. 377 - 389
Issue Date:: 2019-05-01

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Field	Value	Language
dc.contributor.author	Vahedian, A	en_US
dc.contributor.author	Shrestha, R https://orcid.org/0000-0001-6756-6525	en_US
dc.contributor.author	Crews, K https://orcid.org/0000-0003-1450-1423	en_US
dc.date.available	2021-05-18T19:03:42Z
dc.date.issued	2019-05-01	en_US
dc.identifier.citation	Composites Part B: Engineering, 2019, 164 pp. 377 - 389	en_US
dc.identifier.issn	1359-8368	en_US
dc.identifier.uri	http://hdl.handle.net/10453/129292
dc.description.abstract	© 2018 Elsevier Ltd Timber is one of the most appealing and aesthetic construction materials with excellent characteristics compared with other construction materials such as steel, concrete and clay bricks. It is one of the oldest sustainable construction materials and still continues to be a popular choice in modern infrastructure. In recent years, fibre reinforced polymers (FRP) has emerged to improve mechanical properties even further. In this study, results of experimental tests on strengthened glulam beams have been used to investigate potential parameters affecting flexural strength and ultimate load carrying capacity of glulam beams strengthened with externally bonded FRP sheets. Eight full-scale timber beams with and without FRP reinforcement were tested where the bonded length, width, and thickness of the FRP was varied for FRP strengthened beams. The test results pointed out that reduction of stress concentrations can enhance the mechanical performance of the strengthened beams. The ultimate load carrying capacity and flexural strength of reinforced beams improved significantly when bond length and bond width increased. Results of experiments showed that further increase in bond thickness predominantly improves stiffness and ductility of the strengthened timber beams which has a significant enhancement in ultimate deflection and serviceability limit state. An analytical model has been established to determine the ultimate flexural capacity of strengthened timber beam. Satisfactory correlation is achieved between measured and predicted flexural capacity, signifying the capability of the new models.	en_US
dc.relation.ispartof	Composites Part B: Engineering	en_US
dc.relation.isbasedon	10.1016/j.compositesb.2018.12.007	en_US
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Materials	en_US
dc.title	Experimental and analytical investigation on CFRP strengthened glulam laminated timber beams: Full-scale experiments	en_US
dc.type	Journal Article
utslib.citation.volume	164	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	open_access	*
pubs.publication-status	Published	en_US
pubs.volume	164	en_US

Abstract:

© 2018 Elsevier Ltd Timber is one of the most appealing and aesthetic construction materials with excellent characteristics compared with other construction materials such as steel, concrete and clay bricks. It is one of the oldest sustainable construction materials and still continues to be a popular choice in modern infrastructure. In recent years, fibre reinforced polymers (FRP) has emerged to improve mechanical properties even further. In this study, results of experimental tests on strengthened glulam beams have been used to investigate potential parameters affecting flexural strength and ultimate load carrying capacity of glulam beams strengthened with externally bonded FRP sheets. Eight full-scale timber beams with and without FRP reinforcement were tested where the bonded length, width, and thickness of the FRP was varied for FRP strengthened beams. The test results pointed out that reduction of stress concentrations can enhance the mechanical performance of the strengthened beams. The ultimate load carrying capacity and flexural strength of reinforced beams improved significantly when bond length and bond width increased. Results of experiments showed that further increase in bond thickness predominantly improves stiffness and ductility of the strengthened timber beams which has a significant enhancement in ultimate deflection and serviceability limit state. An analytical model has been established to determine the ultimate flexural capacity of strengthened timber beam. Satisfactory correlation is achieved between measured and predicted flexural capacity, signifying the capability of the new models.

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http://hdl.handle.net/10453/129292