At the present time, it is often found that the existing building has been
changed in the function or in the number of the floors. In the some cases, the
increasing number of floors make an additional load to the existing columns. So it
need to strengthen the existing column to be able to carry the additional load. One
method to strengthen the existing column is using jacketing method. One of the
jacketing method uses a Carbon Fiber Reinforced Polymer (CFRP).
This research studies about the effect of CFRP layer on the short column
subjected to eccentric loading. Twelve column specimens were made with the size of
(75 x 75 x 750) mm and 36 cylinder specimenswith the sizw of (150 x 300) mm. The
columns and cylinders made in with variation of the layer CFRP that are one layer,
two layer, and three layer. The loading has eccentricity of 50 mm.
The result shows that the increasing of the compressive strength of concrete
using one layer, two layer, adn three layer of CFRP compare to the cylinder without
CFRP were 9,9%, 81,9%, and 104,3% respectively, while the capacity of a column
with one layer, two layer, and three layer of CFRP compare to the specimen without
CFRP were 5,4%, 10,71%, and 16,3% respectively. The comparasion of the capacity
of the column using the compressive strength of the Model Teng et al., Richart, and
Lam and Teng, shows that the model of Teng et al closed to the experimental result.