Abstract—Fiber reinforced polymer (FRP) has been applied
to many purposes for civil engineering structures not only for
new structures but also for strengthening of the deteriorated
structures. The application of FRPs in various forms such as
rod, grid and sheet are widely accepted solution due to its
corrosion resistance as well as high tensile strength to weight
ratio. Glass composed FRP (GFRP) sheet is most commonly
used due to its relatively lower cost compared to the other FRP
materials. GFRP sheet is applied externally by bonding it on the
concrete surface. Many studies have been done to investigate
the bonding of GFRP sheet. However, it is still very rarely
studies on the bonding behavior of GFRP sheet on the
strengthened beams due to flexural loadings. This is important
to be clarified for the wider application of GFRP sheet
especially on the flexural structure such as highway bridge
girders. This study presented the results of experimental
investigation of the bonding behavior on the strengthened
concrete beams due to flexural loadings. A series of concrete
beams strengthened with GFRP sheet on extreme tension
surface were prepared. Results indicated the bonding
distribution along the GFRP sheet due to flexural loading
tended to be non-linear. The bond stress due to flexural loading
was lower than the direct shear bond stress.
Index Terms—Flexural, bond stress, strengthening, GFRP
sheet.
Rudy Djamaluddin, Mufti Amir Sultan, and Rita Irmawati are with the
Hasanuddin University, Makassar, South Sulawesi, Indonesia (e-mail:
rudy0011@hotmail.com, rita_irmaway@yahoo.co.id).
Hino Shinichi is with the Kyushu University, Fukuoka, Japan (e-mail:
hino@doc.kyushu-u.ac.jp).
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Cite: Rudy Djamaluddin, Mufti Amir Sultan, Rita Irmawati, and Hino Shinichi, "Bond Characteristics of GFRP Sheet on Strengthened
Concrete Beams due to Flexural Loading," International Journal of Engineering and Technology vol. 7, no. 2, pp. 110-115, 2015.