Concrete-filled Tube

Japan Iron and Steel Federation

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

Japan Iron and Steel Federation – Japan

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 of the combined effects of
steel and concrete.

Characteristics

Superior Bearing Capacity of CFT Members
– Composite-filled tube (CFT) members exhibit greater load
bearing performance compared to reinforced concrete and steel structures.
Reduction of Mega- Column Size in High-Rise Buildings
– Adoption of CFTs enables significant downsizing of mega columns, contributing to efficient use of interior space in tall structures.

Applications

In Japan :
many track records
For example,

Buildings
Bridges
Towers

Related Products

Steel Framed House

A hybrid panel construction method composed of “wall panel,” “floor panel,” and “roof panel,” in which steel (sheet metal light gauge sections) and structural face materials (such as structural plywood and plasterboard) are used.

School Facility Built with a Steel Structure [Multipurpose institution]

It has flexibility in dealing with future changes of space usage because a large space without column can be provided.

Weathering Steel for Bridges

By adding elements such as Cu, Cr, and Ni that are effective in improving weather resistant performance, a protective rust is formed on the surface of the steel material, suppressing the progression of corrosion.