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Fatigue Rehabilitation of Coped Steel Beams Using Carbon Fibre Reinforced Polymers Open Access

Descriptions

Other title
Subject/Keyword
Fatigue
Steel
CFRP
Structural
FRP
Coped
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Holden, Theresa A
Supervisor and department
Cheng, J.J. Roger (Civil and Environmental Engineering)
Examining committee member and department
Jar, Ben (Mechanical Engineering)
Driver, Robert (Civil and Environmental Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
Structural Engineering
Date accepted
2012-01-30T14:20:31Z
Graduation date
2012-06
Degree
Master of Science
Degree level
Master's
Abstract
Coped beams are susceptible to fatigue cracking in the web at the cope radius when subjected to tension in the coped region. Use of an adhesively bonded composite patch over the crack can reduce the stress concentration and delay further crack growth. This report contains the results of a full-scale experimental study on the fatigue mitigation of coped beams using CFRP patches, varying the patch thickness, orientation and eccentricity (single side vs. double side). Double sided repairs were found to be vastly superior to single sided repairs. A small-scale experimental study was also conducted, varying only the precrack length, and showing that the effectiveness of the patch decreased with longer precracks. Also presented is an analytical study for failure prediction of the fatigue mitigation method.
Language
English
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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