Steel and Composite Structures

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Mechanical behaviour of partially encased composite columns confined by CFRP under axial compression

  • Liang, Jiongfeng (State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China Institute of Technology) ;
  • Zhang, Guangwu (Faculty of Civil & Architecture Engineering, East China Institute of Technology) ;
  • Wang, Jianbao (Faculty of Civil & Architecture Engineering, East China Institute of Technology) ;
  • Hu, Minghua (Faculty of Civil & Architecture Engineering, East China Institute of Technology)
  • Received : 2018.02.22
  • Accepted : 2019.04.02
  • Published : 2019.04.25
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Abstract

This paper presents the results of an experimental study to investigate the mechanical behavior of partially encased composite columns confined by CFRP under axial compression. The results show that the failure of the partially encased composite columns confined by CFRP occurred due to rupture of the CFRP followed by local buckling of the steel flanges. External wrapping of CFRP effectively delayed the local buckling of the steel flanges. The load carrying capacity of the column increased with the application of CFRP sheet. And the enhancement effect of the column was increased with the number of CFRP layer.

Keywords

Acknowledgement

Supported by : Chinese National Natural Science Foundation, Natural Science Foundation of Jiangxi Province, East China Institute of Technology

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