Civil Engineering - RCC Structures Design - Discussion


The diameter of longitudinal bars of a column should never be less than

[A]. 6 mm
[B]. 8 mm
[C]. 10 mm
[D]. 12 mm
[E]. none of these.

Answer: Option D


No answer description available for this question.

Md Samsuzzaman said: (Mar 27, 2014)  
This answer is appropriate as per IS 456:2000.

Ashok Maurya said: (Jun 1, 2015)  
Due to buckling so not use < 12 mm diameter.

Piyush Singh said: (Sep 3, 2015)  
IS 456 (Clause:- d) the bars shall not be less than 12 mm in diameter.

Himanshu Bhatt said: (Oct 9, 2015)  
Diameter should not be less than 12 mm.

Ashutosh Mohod said: (Oct 30, 2015)  
But for minimum cover case it is written in the code 456:2000, that if column size is less than 200 mm and reinforcement diameter is less than 12 mm, than for this case 25 mm of cover should be provided otherwise 40 mm which shows that diameter size could be less than 12 mm.

G.S Meena said: (Jun 21, 2017)  
The diameter of longitudinal bar of column is not less than 12 mm.

Shivam said: (Jun 22, 2017)  
Thanks @Piyush Singh.

Sumit said: (Oct 27, 2018)  
The longitudinal bar not be less than 12.

Abhijit Khandpasole said: (May 2, 2019)  
For stub column we use 10MM dia of bar.

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