There are many kinds of seismic strengthening methods for columns. CFRP sheet is one of the most recent reinforcement data in recent years. It is very effective for reinforced concrete under bending, axial compression, large eccentric compression and tensile member reinforcement.

The following points should be met when the CFRP of the column is aseismatic and strengthened.

The lack of normal section bearing capacity when columns under axial load, can be used to align the stop ring around the beam reinforcement, which is good for all along the column distance ring reinforcement to continuous carbon fiber cloth to stop;

When the shear bearing capacity of the column cross section is short, CFRP can be bonded into a ring type hoop, and the direction of the fiber is perpendicular to the longitudinal axis of the column.

When strengthening the reinforced concrete columns with large eccentricity, the carbon fiber cloth should be pasted on the concrete surface of the tensile area edge, and the fiber direction should be different from the longitudinal axis of the column.