Seismic strengthening of a precast reinforced concrete wall panel using NSM-CFRP

Abstract

The precast reinforced concrete wall panel (PRCWP) presented in this paper is part of an experimental program in which the seismic performance, weakening effects due to cut-outs, strengthening strategies, and cost evaluations were investigated. The experimental specimens were 1:1.2 scaled RC as-built solid walls or as-built walls with window or door openings. The specimens were subjected to cyclic load reversals, displacement controlled. Most of the specimens were first tested unstrengthened, then after they were repaired, strengthened using FRPs, and tested again. The wall panel presented here was post-damage strengthened using near surface mounted (NSM) carbon fiber reinforced polymers (CFRP). The repair and strengthening strategy steps will be presented together with the experimental results of both the unstrengthened and the post-damage strengthened specimens.