Japan Iron and Steel Federation

Tel: +81 3 3669 4815
Website: https://www.jisf.or.jp/en/

Concrete-filled Tube

Japan Iron and Steel Federation – All Regions

Concrete-filled Tube structure is a structural framing comprised of concrete-filled tubes, CFTs, and steel beams.

CFTs achieve higher seismic performance and fire resistance with the aid for the combined effects of steel and concrete.



Structural performance

  • Bearing Capacity of CFT members are superior to reinforced concrete & Steel structures
  • By adopting CFTs, mega-columns of high-rise buildings can be downsized remarkably


  • Buildings
  • Bridges
  • Towers


Prevention Solution, Earthquake

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