Abstract
The present study examines the shear performance and modes of failure
of rectangular simply supported reinforced concrete (RC) beams designed
with shear deficiencies. These members were strengthened with externally
bonded carbon fiber reinforced polymer (CFRP) sheets and evaluated
in the laboratory. The experimental program consisted of twelve full-scale
RC beams tested to fail in shear. The variables investigated within
this program included steel stirrups, and the shear span-to-effective
depth ratio as well as amount and distribution of CFRP. The experimental
results indicated that the contribution of externally bonded CFRP
to the shear capacity was significant. The shear capacity was also
shown to be dependent upon the variables investigated. Test results
were used to validate a shear design approach, which showed conservative
and acceptable predictions.
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