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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.21 No.2
- 발행연도
- 2016.1
- 수록면
- 411 - 427 (17page)
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초록· 키워드
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While the cyclic behaviour of fiber-reinforced polymer (FRP)-confined columns is studied rather extensively, the cyclic response especially the energy dissipation of FRP-confined damaged and undamaged square RC columns is not yet fully understood. In this paper, an experimental and numerical investigation was conducted to study the cyclic behavior of two different types of Carbon FRP (CFRP)-confined square RC columns: strengthened and repaired. The main variables investigated are initial damage, confinement of CFRP, longitudinal steel reinforcement ratio. The experimental results show that lower initial damage, added confinement with CFRP and longitudinal reinforcement enhance the ductility, energy dissipation capacity and strength of the columns, decrease the stiffness and strength degradation rates of all CFRP-confined square RC columns. Two hysteretic constitutive models were developed for confined damaged and undamaged concrete and cast into the non-linear beam-column fiber-based models in the software Open System for Earthquake Engineering Simulation (OpenSees) to analyze the cyclic behavior of CFRP-confined damaged and undamaged columns. The results of the numerical models are in good agreement with the experiments.
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참고문헌 (26)
참고문헌 신청
Bae, S. / 2008 / Plastic hinge length of reinforced concrete columns / ACI Struct. J 105(3):290~300
Biskinis, D. / 2013 / Models for FRP-wrapped rectangular RC columns with continuous or lap-spliced bars under cyclic lateral loading / Eng. Struct. 57:199~212
Cheng, C.T. / 2003 / Seismic performance of repaired hollow-bridge piers / Constr. Build. Mater. 17(5):339~351
Filippou, F.C. / 1983 / Effects of Bond Deterioration on Hysteretic Behavior of Reinforced Concrete Joints
Galal, K. / 2005 / Retrofit of RC square short columns / Eng. Struct. 27(5):801~813
Biskinis, D. / 2013 / Models for FRP-wrapped rectangular RC columns with continuous or lap-spliced bars under cyclic lateral loading / Eng. Struct. 57:199~212
Cheng, C.T. / 2003 / Seismic performance of repaired hollow-bridge piers / Constr. Build. Mater. 17(5):339~351
Filippou, F.C. / 1983 / Effects of Bond Deterioration on Hysteretic Behavior of Reinforced Concrete Joints
Galal, K. / 2005 / Retrofit of RC square short columns / Eng. Struct. 27(5):801~813
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