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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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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.18 No.3
- 발행연도
- 2015.1
- 수록면
- 623 - 639 (17page)
이용수
초록· 키워드
오류제보하기
Self-compacting Concrete (SCC) Filled Square steel Tubes (SCFST) was used to strengthen square RC columns. To establish the efficiency of this strengthening method, 17 columns were tested under axial compression loading including 3 RC columns without any strengthening (WRC), 1 RC column strengthened with concrete jacket (CRC), 13 RC columns strengthened with self-compacting concrete filled square steel tubes (SRC). The experimental results showed that the use of SCFST is interesting since the ductility and the bearing capacity of the RC columns are greatly improved. The improvement ratio is significantly affected by the nominal wall thickness of steel tubes (<i>t</i>), the strength grade of strengthening concrete (C), and the length-to-width ratio (L /B) of the specimens. In order to quantitatively analyze the effect of these test parameters on axial loading behavior of the SRC columns, three performance indices, enhancement ratio (ER), ductility index (DI), and confinement ratio (CR), were used. The strength of the SRC columns obtained from the experiments was then employed to verify the proposed mode referring to the relevant codes. It was found that codes DBJ13-51 could relatively predict the strength of the SRC columns accurately, and codes AIJ and BS5400 were relatively conservative.
목차
등록된 정보가 없습니다.
참고문헌 (28)
참고문헌 신청
Aboutaha, R.S. / 1999 / Seismic resistance of steel-tubed high-strength reinforcedconcrete columns / J. Struct. Eng 125(5):485~494
Aboutaha, R. S. / 1999 / Experimental investigation of seismic repair of lap splice failures in damaged concrete columns / ACI Struct. J 96(2):297~306
Aboutaha, R. S. / 1999 / Rehabilitation of shear critical concrete columns by use of rectangular steel jackets / ACI Struct. J 96(1):68~78
Abedi, K. / 2010 / Numerical study on the seismic retrofitting of reinforced concrete columns using rectified steel jackets / Asian J. Civil Eng 11(2):219~240
Architectural Institute of Japan / 2008 / Recommendations for design and construction of concrete filled steel tubular structures / Architectural Institute of Japan
Aboutaha, R. S. / 1999 / Experimental investigation of seismic repair of lap splice failures in damaged concrete columns / ACI Struct. J 96(2):297~306
Aboutaha, R. S. / 1999 / Rehabilitation of shear critical concrete columns by use of rectangular steel jackets / ACI Struct. J 96(1):68~78
Abedi, K. / 2010 / Numerical study on the seismic retrofitting of reinforced concrete columns using rectified steel jackets / Asian J. Civil Eng 11(2):219~240
Architectural Institute of Japan / 2008 / Recommendations for design and construction of concrete filled steel tubular structures / Architectural Institute of Japan
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