An Experimental Study on Shear Strengthening of the R/C Deep Beams Using Carbon and Aramid Fibers |
Jo, Byung-Wan;Kim, Young-Jin; |
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탄소 및 아라미드섬유를 이용한 철근콘크리트 깊은 보의 전단보강에 관한 실험적 연구 |
조병완;김영진; |
한양대학교 토목공학과;한양대학교 토목공학과; |
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© 1999 The Korean Society of Ocean Engineers
Open access / Under a Creative Commons License
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Keywords:
Carbon Fiber, Aramid Fiber, Shear Strengthening, Deep Beam, Anchorage, Peeling-Off, Fiber Reinforcement |
핵심용어:
탄소섬유, 아라미드섬유, 전단보강, 깊은보, 정착, 박리, 섬유보강 |
Abstract |
An experimental study was carried out to examine the structural behavior of reinforced concrete deep beams strengthened with aramid fiber sheets, carbon fiber sheets and plates, and to propose the reasonable strengthening method for the deteriorated R.C. deep beams. Results show that the most significant differences in behavior of reinforced concrete deep beams strengthened with fiber sheet and plate were mainly due to various fiber orientations and anchorage. Deep beams diagonally strengthened with carbon fibers show better performance compared with those of vertically, horizontally strengthened specimens and produce the increase in the shear resistance through the redistribution of internal forces after the initial cracks occur. However, strengthened deep beams without anchorages might show unreasonable, brittle peeling-off failure of fiber reinforcements. |
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