Abstract
In order to establish a rational flexural strengthening method for exist RC members using FRP sheet, load carry response of the RC beams and sheet debonding behavior were experimentally discussed taking cross sectional shape of beam, main-rebar ratio, sheet-volume ratio, shear-span ratio, sheet material and loading type as valiables. And based on these experimental results and other published experimental data, empirical prediction equations for failure mode of the RC beams were proposed and an applicability of the criterion for sheet debonding derived based on the fracture energy concept published by JSCE was also discussed.
