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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.30 No.2
- 발행연도
- 2019.1
- 수록면
- 171 - 183 (13page)
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초록· 키워드
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As China’s infrastructure continues to grow, concrete filled steel tubular (CFST) structures are attracting increasing interest for use in engineering applications in earthquake prone regions owing to their high section modulus, high strength, and good seismic performance. However, in a corrosive environment, the seismic resistance of the CFST columns may be affected to a certain extent. This study attempts to investigate the mechanical behaviours of square CFST members under both a cyclic load and an acid rain attack. First, the tensile mechanical properties of steel plates with various corrosion rates were tested. Second, a total of 12 columns with different corrosion rates were subjected to a reversed cyclic load and tested. Third, comparisons between the test results and the predicted ultimate strength by using four existing codes were carried out. It was found that the corrosion leads to an evident decrease in yield strength, elastic modulus, and tensile strain capacity of steel plates, and also to a noticeable deterioration in the ultimate strength, ductility, and energy dissipation of the CFST members. A larger axial force ratio leads to a more significant resulting deterioration of the seismic behaviour of the columns. In addition, the losses of both thickness and yield strength of an outer steel tube caused by corrosion should be taken into account when predicting the ultimate strength of corroded CFST columns.
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참고문헌 (36)
참고문헌 신청
AIJ / 1997 / Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures / Architectural Institute of Japan
Almusallam, A. A. / 2001 / Effect of degree of corrosion on the properties of reinforcing steel bars / Constr. Build. Mater 15(8):361~368
Farhad Aslani / 2015 / Predicting the axial load capacity of high-strength concrete filled steel tubular columns / Steel and Composite Structures, An International Journal 19(4):967~993
Aslani, F. / 2017 / Behaviour and design of hollow and concrete-filled spiral welded steel tube columns subjected to axial compression / J. Constr. Steel Res 128:261~288
Boyd, P. F. / 1995 / Seismic performance of steel-encased concrete columns under flexural loading / ACI Struct. J 92(3):355~364
Almusallam, A. A. / 2001 / Effect of degree of corrosion on the properties of reinforcing steel bars / Constr. Build. Mater 15(8):361~368
Farhad Aslani / 2015 / Predicting the axial load capacity of high-strength concrete filled steel tubular columns / Steel and Composite Structures, An International Journal 19(4):967~993
Aslani, F. / 2017 / Behaviour and design of hollow and concrete-filled spiral welded steel tube columns subjected to axial compression / J. Constr. Steel Res 128:261~288
Boyd, P. F. / 1995 / Seismic performance of steel-encased concrete columns under flexural loading / ACI Struct. J 92(3):355~364
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