Suggestion of Flexural Strengthening Ratio of NSM Strengthened Concrete Railroad Bridge based on Probability and Reliability

FRP??? ???????????? ???????????? ????????????????????? ???????????????????????????, FRP Plate ?????? fiber sheet??? ??? ????????? ???????????? ???????????? FRP ???????????? ???????????? ????????????. ?????????, ????????? ????????????????????? FRP ???????????? ??????????????? ????????? ???????????? ????????? ????????? ??????. ????????? ????????????????????? ????????? ???????????? ?????? ??????????????????, ???, Near Surface Mounted(?????? NSM)????????? ???????????????. ?????? FRP ???????????? ?????????????????? ????????? ???????????? ?????? ????????? ??????????????? ?????? ???????????? ???????????? ??? ?????? debonding ??? ????????? ????????? ??? ?????????, ?????? ?????? FRP ???????????? ??????????????? ??????????????? ????????? ??? ??????. ???????????? NSM ????????? ????????????, ???????????? ???????????? ??????, ????????????, ???????????? ???????????? ?????? ?????? ?????? ????????? ????????? ????????????, ?????? ??? ???????????? ???????????? ???????????? ??? ???????????? ????????? ????????????. ??? ??????????????? ???????????? ????????? ????????? ????????? ???????????? ????????????, ?????? ??? ???????????? ????????? ?????? ????????? Monte Carlo Simulation??????????????? ???????????? ??? ??????????????? ????????? ???, NSM ????????? ?????? ???????????? ????????? ?????? ?????????????????? ????????? ??? ?????? ??????????????? ??????????????? ?????????. ???????????? LS-25????????? ???????????? ????????? ??????????????? ?????????????????? ????????? ??? ?????????. ????????? ????????????????????? ??? ????????? ??????????????? ???????????? ????????? ??? ????????????, ?????? ????????? ????????????????????? ????????? ????????? ??? ?????? ????????????