Abstract: Based on the eccentric compressive experiment of five pre-damage reinforced concrete (RC) short columns and one contrast specimen with different reinforcement methods, the failure process and ultimate strength of the specimens were described. The stress-strain relationship of steel bars, basalt fiber plastic bar, concrete, basalt fiber plastic sheets and load-deflection of columns was compared and analyzed under the different ways of BFRP reinforcement. The result shows that mixed reinforcement techniques is more effective than merely use near surface mounted (NSM) method due to the mixed effects. The bearing capacity calculation and the simplified design method were proposed for reference on the basis of the test results and the basic assumption.

Key words: NSM BFRP bar, BFRP sheets jacketing, mixed reinforcement, stress-strain relationship, bearing capacity