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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.40 No.3
- 발행연도
- 2021.1
- 수록면
- 339 - 354 (16page)
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초록· 키워드
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In this paper, the axial compressive properties of cold-formed steel lipped channel stub columns strengthened by rebars or steel strips are experimentally studied. The experiment included two sections. A kind of columns with local buckling is reinforced longitudinally by steel strips at the web. The other is the columns with distorted buckling, which is reinforced longitudinally by steel bars at the curling edge. The failure mode, deformation characteristics, ultimate bearing capacity and load displacement curve of the specimen are obtained through the experiment. On the basis of the experiment, the calculation results of theoretical axial bearing capacity of cold-formed steel lipped channel stub columns in Chinese, North American and Australian code are compared and analyzed. Research indicates: First, the cold-formed steel lipped channel stub columns strengthened by steel bars or steel strips can effectively improve the compressive bearing capacity of the specimen. Secondly, when the initial stress ratio of specimen is less than 0.3, the reinforcement effect is ideal. Thirdly, the three standards don’t stipulate the calculation of theoretical bearing capacity of the specimen strengthened after loading, so there is a large deviation between the theoretical calculation value and the test value.
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참고문헌 (8)
참고문헌 신청
M. Anbarasu / 2016 / Experimental study on cold-formed steel web stiffened lipped channel columns undergoing distortional–global interaction / Materials and Structures 49(4):1433~1442
Li, Y. Q. / 2010 / Experimental Study on Distortional Buckling Control for High-strength Cold-formed Thin-walled Steel Lipped Channel Columns Subject to Axial Compression / J. Build. Struct 31(11):10~16
P. Manikandan / 2016 / Numerical Investigation on Cold-Formed Steel Lipped Channel Columns with Intermediate Web Stiffeners / Journal of The Institution of Engineers (India): Series A 97(1):1~7
B. W. Schafer / 2002 / Local, Distortional, and Euler Buckling of Thin-Walled Columns / Journal of Structural Engineering 128(3):289~299
Mehdi Shahraki / 2019 / Strengthening of deficient steel SHS columns under axial compressive loads using CFRP / Steel and Composite Structures, An International Journal 30(1):69~79
Li, Y. Q. / 2010 / Experimental Study on Distortional Buckling Control for High-strength Cold-formed Thin-walled Steel Lipped Channel Columns Subject to Axial Compression / J. Build. Struct 31(11):10~16
P. Manikandan / 2016 / Numerical Investigation on Cold-Formed Steel Lipped Channel Columns with Intermediate Web Stiffeners / Journal of The Institution of Engineers (India): Series A 97(1):1~7
B. W. Schafer / 2002 / Local, Distortional, and Euler Buckling of Thin-Walled Columns / Journal of Structural Engineering 128(3):289~299
Mehdi Shahraki / 2019 / Strengthening of deficient steel SHS columns under axial compressive loads using CFRP / Steel and Composite Structures, An International Journal 30(1):69~79
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