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허승웅 ( Ho Seung-woung ),이강석 ( Lee Kang Seok ),손영선 ( Son Young-sun ),변인희 ( Byeon In Hee ),나정민 ( Na Jung-min ),이리형 ( Lee Li-hyung ) 한국구조물진단유지관리공학회 2006 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.10 No.2
The purpose of this study is to compare and evaluate the strengthening effect of reinforced concrete beams under damaged condition through the experiments of strengthening condition in real structures. Two groups of 10 specimens[i.e., shear strengthening of beams(5 specimens): 70% and 90% of the damage degree /flexural strengthening of beams(5 specimens): 70% and yield point of the damage degree] are set up to investigate the effects of each variable on the structural behavior of Sprayed-FRP strengthened R·C beams. In this paper, experimental data on strength, stiffness, material strain, deflection and mode of failure of strengthened beams were obtained, and also comparisons between the damage degree of beams were carried out.