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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.32 No.1
- 발행연도
- 2019.1
- 수록면
- 21 - 35 (15page)
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초록· 키워드
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This study investigates the flexural behavior of steel-concrete composite beams strengthened with prestressed carbon fiber-reinforced polymer (CFRP) plates. An innovative mechanical anchorage system was developed. The components of the system can be easily assembled on site before applying a prestressing force, and removed from the structures after strengthening is completed. A total of seven steel-concrete composite specimens including four simply supported beams strengthened at the positive moment region and three continuous beams strengthened at the negative moment region were tested statically until failure. Experimental results showed that the use of prestressed CFRP plates enhanced the flexural capacity and reduced the mid-span deflection of the beams. Furthermore, by prestressing the CFRP laminates, the material was used more efficiently, and the crack resistance of the continuous composite specimens at the central support was significantly improved after strengthening. Overall, the anchorage system proved to be practical and feasible for the strengthening of steel-concrete composite beams. The theoretical analysis of ultimate bearing capacity is reported, and good agreement between analytical values and experimental results is achieved.
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참고문헌 (20)
참고문헌 신청
Aiello, M. A. / 2007 / Moment redistribution in continuous reinforced concrete beams strengthened with carbon-fiber-reinforced polymer laminates / Mech. Compos. Mater 43(5):453~466
Akbarzadeh, H. / 2010 / Experimental and analytical investigation of reinforced high strength concrete continuous beams strengthened with fiber reinforced polymer / Mater. Des 31(3):1130~1147
Al-Saidy, A. H. / 2007 / Strengthening of steel-concrete composite girders using carbon fiber reinforced polymer plates / Constr. Build. Mater 21(2):295~302
Ashour, A. F. / 2004 / Flexural strengthening of RC continuous beams using CFRP laminates / Cement Concrete Compos 26(7):765~775
Basler, M. / 2004 / Bridge strengthening with prestressed CFRP plate systems / Proceedings of IABSE Symposium: Metropolitan Habitats and Infrastructure
Akbarzadeh, H. / 2010 / Experimental and analytical investigation of reinforced high strength concrete continuous beams strengthened with fiber reinforced polymer / Mater. Des 31(3):1130~1147
Al-Saidy, A. H. / 2007 / Strengthening of steel-concrete composite girders using carbon fiber reinforced polymer plates / Constr. Build. Mater 21(2):295~302
Ashour, A. F. / 2004 / Flexural strengthening of RC continuous beams using CFRP laminates / Cement Concrete Compos 26(7):765~775
Basler, M. / 2004 / Bridge strengthening with prestressed CFRP plate systems / Proceedings of IABSE Symposium: Metropolitan Habitats and Infrastructure
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