| Summary: | n this research, an experimental study is conducted to investigate the behavior
and strength of high strength reinforced concrete corbels externally bonded with
CFRP fabric sheets and Plates with different patterns taking into account the
effect of adopted variables in enhancing the ultimate strength; the effect of shear
span to effective depth (a/d), configuration, type and amount of bonding. Eleven
high strength reinforced corbels were cast and tested under vertical loads. Test
results showed there was an improvement in the behavior and load carrying
capacity of all strengthened corbels. An increasing in the ultimate strength of
strengthened corbel by inclined CFRP strips reached to (92.1%) while the
increasing reached to (84.21%) for using one horizontal CFRP Plates compared
to un-strengthened reference specimen. Also, it can be conducted that the
increase of (a/d) ratio from (0.6 to 0.8) resulted in decreasing by 21.05% in
ultimate load capacity of corbels and from (0.4 to 0.6) by 31.25% and 58.69% in
cracking and ultimate loads respectively.
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