SEISMIC PERFORMANCE OF SHEAR FAILED SHORT COLUMNS WITH LOW STRENGTH CONCRETE

Abstract

In order to continue to use buildings that have been severely damaged by a major earthquake, it is necessary to clarify the resistance mechanism of the repaired members. Focusing on the existing buildings with low strength concrete, experimental investigations were conducted using the short RC columns damaged in shear. In this paper, it is expected that the low seismic performance of damaged buildings can be restored by epoxy resin injection alone, although epoxy injection is usually used together with wrapping steel plates or CFRP sheets. The maximum strength of the repaired columns was greater than those of the original columns.