• Title/Summary/Keyword: Composite layerstrengthen

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An Experimental Study on the Compressive Strength Characteristics of Reinforced Concrete Columns Strengthened with Fiber Sheets (섬유시트로 보강된 철근콘크리트 기둥의 압축강도 특성에 관한 실험적 연구)

  • Kim, Jeong-Sup;Choi, Jin-Seok;Cho, Cheol-Hee;Go, Song-Kyoon
    • Journal of the Korea Institute of Building Construction
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    • v.3 no.2
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    • pp.119-127
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    • 2003
  • Test specimen test was performed using concrete reinforced with fiber sheet and the test variables were based on the kinds of fiber and the number of reinforcement layers. Using steel-concrete reinforced with fiber sheet, compression tests were performed and the test variables were the kinds of fiber, number reinforcement layers and reinforcement layer order. The following results were obtained: 1) It was demonstrated that compressive strength of the test specimen reinforced during test specimen test and member test increased as the number of reinforcement layers increased. 2) It was shown that non-reinforced test, specimen were destroyed during the member tests, but the specimen reinforced with CFS destroyed and the GFS-reinforced specimen and composite reinforced specimen showed ductile destruction. 3) As a result of tests on kinds of reinforcement fiber, it was demonstrated that CFS-reinforced test specimen had higher compressive strength in a 공시체 test. In the member test, 2ply-and 3ply-GFS reinforced specimens except lplied one had higher compressive strength. It was because partial destruction occurred due to the rate of height/section. 4) For layer strength order, compared with test specimen reinforced only with a single reinforced material, test specimen reinforced with CFS and GFS, and test specimen reinforced with CFS first showed better results in compressive strength and ductility judgement.