抄録
The resistance mechanism of low strength concrete members was influenced by bond slip characteristics of the plain round bars. In this paper, the epoxy resin injection method is proposed to improve the flexural behaviour of those members. The experiments were carried out to clarify the seismic performance of those RC members repaired by the epoxy resin injection method. In the test columns after repair, flexural and shear cracks along the height of the columns were observed similar to the columns with deformed bars. It was confirmed that the maximum strength of the repaired columns agreed with the calculated flexural strength obtained by the present equation.