Numerical and experimental investigations of vibration-based assessment of timber beams rehabilitated by fibre-reinforced polymer

Xiao, R

Numerical and experimental investigations of vibration-based assessment of timber beams rehabilitated by fibre-reinforced polymer

Xiao, R

Permalink

Publication Type:: Thesis
Issue Date:: 2014

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download contents and abstractAdobe PDF (304.23 kB)

Adobe PDF

Download thesisAdobe PDF (1.91 MB)

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Xiao, R
dc.date.accessioned	2014-08-27T09:28:49Z
dc.date.available	2014-08-27T09:28:49Z
dc.date.issued	2014
dc.identifier.uri	http://hdl.handle.net/10453/29245
dc.description	University of Technology, Sydney. Faculty of Engineering and Information Technology.	en_US
dc.description.abstract	Timber has been traditionally used all over the world as a construction material. Built timber structures may require repair and/or strengthening because of a number of factors such as age-related deterioration, fungus or termite attacks and damage caused by overloading. In recent years, a great deal of research and development has been focused on utilizing vibration based methods to detect structural damage and use of fibre reinforce polymer (FRP) on timber for strengthening or repair damaged timber structural members in various types of structures. Although the application of FRP for repair and/or strengthening of structures has been researched for a decade, anon-destructive evaluation of the effectiveness and reliability of the FRP repaired or strengthened structure are yet to be investigated. In this study, the damage index method, i.e. a robust vibration-based damage detection method, is proposed to localize and quantify damage in timber beams and to evaluate the effectiveness of repair for the damaged timber beams, in which the damaged timber beams are repaired by applying carbon fibre reinforced polymer (CFRP). In addition to numerical investigation using Finite Element (FE) analysis, an experimental program comprising of static and dynamic testing was carried out on five laminated veneer lumber (LVL) beams. Different damage cases (severe, moderate, minor) are introduced on these beams. The experimental results indicate that the use of CFRP was effective in repairing the damaged timber beams. Both numerical and experimental investigations have also shown that the proposed damage index method is able to accurately detect damage location and severity, and evaluate the repair effectiveness for damaged timber beam after repairing with CFRP.	en_US
dc.format	Thesis (MEng)	en_US
dc.language.iso	en	en_US
dc.relation	https://opus.lib.uts.edu.au/bitstream/10453/29245/2/02whole.pdf
dc.rights	au.edu.uts.lib/ppc
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	The author owns the copyright in this thesis including all reproduction and reuse rights for the work. The work may not be altered without the permission of the copyright owner. Attribution is essential when quoting or paraphrasing from this thesis.
dc.title	Numerical and experimental investigations of vibration-based assessment of timber beams rehabilitated by fibre-reinforced polymer	en_US
dc.type	Thesis
utslib.copyright.status	open_access

Abstract:

Timber has been traditionally used all over the world as a construction material. Built timber structures may require repair and/or strengthening because of a number of factors such as age-related deterioration, fungus or termite attacks and damage caused by overloading. In recent years, a great deal of research and development has been focused on utilizing vibration based methods to detect structural damage and use of fibre reinforce polymer (FRP) on timber for strengthening or repair damaged timber structural members in various types of structures. Although the application of FRP for repair and/or strengthening of structures has been researched for a decade, anon-destructive evaluation of the effectiveness and reliability of the FRP repaired or strengthened structure are yet to be investigated. In this study, the damage index method, i.e. a robust vibration-based damage detection method, is proposed to localize and quantify damage in timber beams and to evaluate the effectiveness of repair for the damaged timber beams, in which the damaged timber beams are repaired by applying carbon fibre reinforced polymer (CFRP). In addition to numerical investigation using Finite Element (FE) analysis, an experimental program comprising of static and dynamic testing was carried out on five laminated veneer lumber (LVL) beams. Different damage cases (severe, moderate, minor) are introduced on these beams. The experimental results indicate that the use of CFRP was effective in repairing the damaged timber beams. Both numerical and experimental investigations have also shown that the proposed damage index method is able to accurately detect damage location and severity, and evaluate the repair effectiveness for damaged timber beam after repairing with CFRP.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/29245