Civil Engineering - RCC Structures Design - Discussion
Discussion Forum : RCC Structures Design - Section 5 (Q.No. 3)
3.
As the percentage of steel increases
Discussion:
13 comments Page 1 of 2.
King said:
6 years ago
Only option B is correct because the Neutral axis is compared with the critical Neutral axis to decide to decrease or increase. But the level arm is not compared with any critical level arm. In IS code definition of the critical level arm is not describe anywhere.
So, only option B is correct.
So, only option B is correct.
Krishna rai said:
1 decade ago
Because if steel is increased the tensile strength is increased manifold so large compressive force is required to counteract this force. Larger comp.force larger nu.depth.
Sopori said:
7 years ago
If steel is increased in the tensile zone, then the neutral axis will move down in the beam, (depth of N-axis will increase).
Ami said:
1 decade ago
With increase in % of steel, section tends to become over reinforced. And concrete tends to fail prior to steel.
DVS said:
8 years ago
@Ranjan they didn't ask EFFECTIVE DEPTH of the slab.
But they asked DEPTH OF NEUTRAL AXIS.
But they asked DEPTH OF NEUTRAL AXIS.
Jadeja Divyarajsinh said:
5 years ago
Xu (depth of N.A.) = 0.87fyAst/0.36fckb.
So, Xu proportional to Ast,
Increase with Ast.
So, Xu proportional to Ast,
Increase with Ast.
(1)
RANJAN PATRA said:
9 years ago
PT% = 100 AST/BD.
Then the answer is option A.
Then the answer is option A.
Suresh chandra said:
7 years ago
Lever arm decrease and Neutral axis increases.
(1)
Ashley said:
8 years ago
D can be correct as NA increase LA decreases.
(1)
DHL said:
8 years ago
Lever arm decreases.
So, Both are true.
So, Both are true.
(1)
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