This paper presents an analytical method for estimating
the flexural strength of reinforced concrete (RC) beams
strengthened with externally bonded fibre-reinforced
polymer (FRP) laminates. The method is developed from
the strain compatibility and equilibrium of forces. Based
on the size of external FRP laminates, several flexural
failure modes may be identified, namely tensile rupture
of FRP laminates and concrete crushing before or after
yielding of internal steel reinforcement. Upper and lower
limits to the size of FRP laminates used are suggested to
maintain ductile behaviour of strengthened RC sections.
Comparisons between the flexural strength obtained
from the current method and from experiments show
good agreement. Design equations for calculating the
size of FRP laminates externally bonded to RC sections
to enhance their flexural strength are proposed.
| Identifer | oai:union.ndltd.org:BRADFORD/oai:bradscholars.brad.ac.uk:10454/870 |
| Date | January 2002 |
| Creators | Ashour, Ashraf F. |
| Source Sets | Bradford Scholars |
| Language | English |
| Detected Language | English |
| Type | Article |
| Rights | © 2002 Thomas Telford Ltd. Reproduced in accordance with the publisher's self-archiving policy. |
| Relation | http://www.extenza-eps.com/extenza/loadPDFInit?objectIDValue=38984 |
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