한국산업융합학회 논문집 (Journal of the Korean Society of Industry Convergence)
- 제12권2호
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- Pages.107-112
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- 2009
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- 1226-833X(pISSN)
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- 2765-5415(eISSN)
섬유시트 보강 구조체의 거동에 관한 해석적 연구
Analytical Study of Behavior on Structure Reinforced Fiber Sheet
- 서성탁 (혜천대학교 도시건설과)
- Seo, Seung-Tag (Dept. of Civil Engineering, Hyechon University)
- 투고 : 2009.02.21
- 심사 : 2009.05.22
- 발행 : 2009.05.22
초록
The effective reinforcement methods of structure is required to improve the durability of existing structures. Recently, the continuous fiber sheets to the concrete structures are widely used in the earthquake-proof reinforcement method. This study examines suitability and effect to concrete structure of fiber by FEM analysis. The result of analysis is as follows; All specimens occurred bending tensile failure at the middle span. Ultimate strength of specimen in the RC and reinforced RC specimen were 53.9 kN, 56.3 kN respectively and it was some low by degree 0.89, 0.82 to compare with calculated result. The deflection of specimen at the middle span occurred in approximately 0.2 mm, and did linear behavior in load 20 kN by seat reinforcement. Stiffness did not decrease by occurrence in the finer crack and reinforcement beam's flexure stiffness was increased until reach in failure. To compare calculated value and analysis value, it almost equal behavior in the elastic reign and can confirm effectiveness of analysis. Crack was distributed uniformly by reinforcement of fiber seat at failure and it do not occurred stiffness decreases.