강판, 탄소섬유쉬트, 탄소섬유판으로 휨보강된 천근콘크리트보의 구조적 거동

Structural behavior of R/C Beam Strengthened with Steel Plate, Carbon Fiber Sheets, and Carbon Fiber Laminate.

In recent years, stengthening of beam by steel plate, carbon fiber sheets, and carbon fiber laminate is spotlighted in order to repair and rehabilitation of R/C structures. In this study, 3 method of rehabilitation technic are analyzed from the tests. Test parameters are the width of cracks, the method of repair and rehabilitation, the magnitude of existing load. Deflection, failure load, strains of reinforcing bar, strains of sheet and plates are measured during tests. The failure mode and ultimate load are analyzed from these measured data. Test result shows that the width of cracks and the magnitude of existing load do not make any difference of ultimate flexural capacity.