Concrete filled steel column (CFSC)
The CFSC system has many advantages compared with the ordinary steel or the reinforced concrete system. One of the main advantages is the interaction between the steel column and concrete, local buckling of the steel column is delayed by the restraint of the concrete and the strength of concrete is increased by the confining effect of the steel column.
Advantages:
The CFSC column system has many advantages compared with ordinary steel or reinforced concrete systems.
Interaction between steel column and concrete:
Local buckling of the steel column is delayed and the strength deterioration after the local buckling is moderated, both due to the restraining effect of the concrete. On the other hand, the strength of the concrete is increased due to the confining effect provided by the steel column. Drying shrinkage and creep of the concrete are much smaller than in ordinary reinforced concrete.
