Civil Engineering - RCC Structures Design - Discussion
Discussion Forum : RCC Structures Design - Section 3 (Q.No. 33)
33.
The minimum clear cover for R.C.C. columns shall be
Discussion:
29 comments Page 1 of 3.
Srujan said:
7 years ago
IS:456:2000 26.4.2.1 However for a longitudinal reinforcing bar in a column nominal cover shall in any case not be less than 40 mm, or less than the than such bar. In the Case of columns, the minimum dimension of 200 mm or under, whose reinforcing bars does not exceed 12 mm, a nominal cover of 25 mm may be used.
Sam said:
7 years ago
However for a longitudinal reinforcing;
Bar in a column nominal cover shall in any case not be less than 40 mm, or less than the diameter of such bar n the case of columns of the minimum dimension of 200 mm or under, whose reinforcing bars do not exceed 12mm, a nominal cover of 25 mm may be used.
Bar in a column nominal cover shall in any case not be less than 40 mm, or less than the diameter of such bar n the case of columns of the minimum dimension of 200 mm or under, whose reinforcing bars do not exceed 12mm, a nominal cover of 25 mm may be used.
Ujjawal said:
8 years ago
For a longitudinal reinforcing bar in a column nominal cover shall in any case not be less than 40 mm, or less than the diameter of such bar. In the case of columns of the minimum dimension of 200 mm or under, whose reinforcing bars do not exceed 12 mm, a nominal cover of 25 mm may be used.
Amrit negi said:
7 years ago
The nominal cover for longitudinal reinforcement bar in a Column shall not be less than any of
1) 40mm
2) the dia of the bar.
In case of small sized columns of minimum dimension of 200mm or under whose reinforcement bars do not exceed 12mm , a nominal cover of 25 mm may be used .
1) 40mm
2) the dia of the bar.
In case of small sized columns of minimum dimension of 200mm or under whose reinforcement bars do not exceed 12mm , a nominal cover of 25 mm may be used .
Ashish said:
7 years ago
Minimum clear cover for column is 40 mm.
But if size of column is less than 200 mm and diameter of main steel is less than 12mm then clear cover is 25 mm.
But if size of column is less than 200 mm and diameter of main steel is less than 12mm then clear cover is 25 mm.
Anuj said:
7 years ago
As the question is not clear in dimension, it should be taken in standard form.
Until or unless restrictions not given.
So it should be option A.
Until or unless restrictions not given.
So it should be option A.
(1)
Rahul said:
9 years ago
25 mm or greater dia bar is used when dia of bar used in column is less than 12 mm so answer can be A or C because dia of bar is not given.
Rahul Rupen said:
5 years ago
Option C is right when its least dimension is less than 200mm.
And option A is also right when its least dimension is greater than 200mm.
And option A is also right when its least dimension is greater than 200mm.
Birendra Kandel said:
10 years ago
Greater of 25 mm or diameter is the answer for the minimum cover of beam. The correct answer for this question is option A.
Nishu said:
6 years ago
Option C is correct because min dia has been asked. So b/w 40 & 25, 25 is the minimum one.
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