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Steel and Composite Structures Volume 22, Number 5, December10 2016 , pages 1073-1084 DOI: https://doi.org/10.12989/scs.2016.22.5.1073 |
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Study on rectangular concrete-filled steel tubes with unequal wall thickness |
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Yang Zhang, Chen-Jiang Yu, Guang-Yuan Fu, Bing Chen, She-Xu Zhao and Si-Ping Li
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| Abstract | ||
| Rectangular concrete-filled steel tubular columns with unequal wall thickness were investigated in the paper. The physical centroid, the centroidal principal axes of inertia, and the section core were given. The generalized bending formula and the generalized eccentric compression formula were deduced, and the equation of the neutral axis was also provided. The two rectangular concrete-filled steel tubular stub specimens subjected to the compression load on the physical centroid and the geometric centroid respectively were tested to verify the theoretical formulas. | ||
| Key Words | ||
| CFST; asymmetric cross section; physical centroid; generalized bending formula; generalized eccentric compression formula; cross section core | ||
| Address | ||
| (1) Yang Zhang, Chen-Jiang Yu, Guang-Yuan Fu, She-Xu Zhao, Si-Ping Li: Department of Engineering Mechanics, Shanghai Jiao Tong University, Shanghai 200240, P.R. China; (2) Yang Zhang: School of Civil Engineering, Nanyang Institute of Technology, Nanyang 473004, P.R. China; (3) Bing Chen: Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, P.R. China. | ||