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Title |
Experimental Study about Flexural Strengthening Effects According to Development Method of Carbon Fiber Sheet for Reinforced Concrete Beam
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Keywords |
보강 ; 탄소섬유시트 ; 정착 ; 부착 Strengthening ; Carbon-fiber sheet ; Development ; Bonding |
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Abstract |
This paper presents the results of a test program for flexural strengthening characteristics of continuous unidirectional carbon-fiber sheets bonded or/and developed to reinforced concrete (RC) beams. A total of six 150mm x 250mm x 2,000mm concrete beams were tested. Various sheet development locations were studied to determine their effects on the ultimate flexural strength of the beams. From the test, it was found that the strength increases remarkably with the development of sheets at shear bar. Among the various location, multi-developed sheet provided the most effective strengthening for concrete beam Beam strengthened using this scheme showed 53% increase in flexural capacity as compared to the control beam without any strengthening.
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