Steel and Composite Structures

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Study on rectangular concrete-filled steel tubes with unequal wall thickness

  • Zhang, Yang (Department of Engineering Mechanics, Shanghai Jiao Tong University) ;
  • Yu, Chen-Jiang (Department of Engineering Mechanics, Shanghai Jiao Tong University) ;
  • Fu, Guang-Yuan (Department of Engineering Mechanics, Shanghai Jiao Tong University) ;
  • Chen, Bing (Department of Civil Engineering, Shanghai Jiao Tong University) ;
  • Zhao, She-Xu (Department of Engineering Mechanics, Shanghai Jiao Tong University) ;
  • Li, Si-Ping (Department of Engineering Mechanics, Shanghai Jiao Tong University)
  • Received : 2015.09.21
  • Accepted : 2016.11.11
  • Published : 2016.12.10
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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.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

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