An Experimental Study on Strengthened Behavior of Reinforced Concrete Columns with Steel Plate

강판 보강된 철근 콘크리트 기둥의 거동에 대한 실험적 연구

This research is aimed to evaluate the effects of repair conditions, axial load intensities and the enlargement of cross sections after strengthening with steel plate and on the structural behavior of the reinforced concrete columns subjected to axial and lateral loadings. 6 columns were tested under uniform axial compression and concentrated load at the midspan until failiure occurs. As test results, It has been found that the amount of grout bar and the condition of strengthening significantly affect the behavior or reinforced concrete column with steel plate and grout 4 bar (C-G4S2 serise) and enlarged reinforced concrete column with steel plate and grout 8 bar (C-G8S2 serise) are increased to 1000% and 1200% in comparison of those of unstrengthened reinforced concrete columns, respectively