Spirally reinforced columns


Structurally there are three types of columns, which divided to :

1- Spirally reinforced columns
2- Tied columns
3- composite columns

In this article I'm going to talk about the spirally reinforced columns only.

spirally reinforced columns
Spirally reinforced columns

These columns are usually circular or square in shape, the couldn't be a rectangular shape. The bars are located in a circle and the spiral is turned to cover these bars. Moreover, according to the ACI Code minimum reinforcement for spirally reinforced columns is six bars ( for longitudinal bars ).  


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