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Polygonal rings are used for lateral reinforcement in the columns. What is the maximum number of sides this polygonal ring can have?

Polygonal rings are used for lateral reinforcement in the columns. What is the maximum number of sides this polygonal ring can have? Correct Answer 8

Explanation:

Transverse reinforcing bars are provided in forms of circular rings, polygonal links (lateral ties) with internal angles not exceeding 135o or helical reinforcement.

The transverse reinforcing bars are provided to ensure that every longitudinal bar nearest to the compression face has effective lateral support against buckling. Clause 26.5.3.2 stipulates the guidelines of the arrangement of transverse reinforcement. The salient points are: 

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Transverse reinforcement shall only go round corner and alternate bars if the longitudinal bars are not spaced more than 75 mm on either side 

The maximum number of sides this polygonal ring can have is 8 

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