Civil Engineering - RCC Structures Design - Discussion
Discussion Forum : RCC Structures Design - Section 2 (Q.No. 9)
9.
The radius of a bar bend to form a hook, should not be less than
Discussion:
29 comments Page 1 of 3.
Nayan said:
8 years ago
Internal radius of the bend is thrice the diameter and the length of straight bar beyond the end of curve should be least four time the diameter of the bar.
Ref. R. S. KHURMI (PAGE - 527).
Ref. R. S. KHURMI (PAGE - 527).
AMANDEEP said:
4 years ago
R=K$, R=radius of hook,$=diameter of bar.
K=2,for mild steel(fe250),
K=4,for hysd (fe415,500),
{R=2$,mild steel and d(dia)=4$}..
{R=4$,hysd and d(dia)=8$}.
So the minimum is R=2$.
K=2,for mild steel(fe250),
K=4,for hysd (fe415,500),
{R=2$,mild steel and d(dia)=4$}..
{R=4$,hysd and d(dia)=8$}.
So the minimum is R=2$.
(1)
Vetan said:
6 years ago
Internal radius of the bend from hook is (twice the diameter) and the length of straight bar beyond the end of curve should be (seven time the diameter of the bar).
Ashu said:
7 years ago
For mild 2 times
Deformed 4 times
Here the answer is 2 times because mention hook which only formed in mild unless mention specifically HYSd.
Deformed 4 times
Here the answer is 2 times because mention hook which only formed in mild unless mention specifically HYSd.
Nimish gupta said:
5 years ago
(A).Internal r of the hook is 2*dia of bar.
(B).External r of the hook is 3*dia of bar.
Here, it is asked about the minimum r, so(A) is correct.
(B).External r of the hook is 3*dia of bar.
Here, it is asked about the minimum r, so(A) is correct.
Shilendra singh said:
8 years ago
The radius of hook= n$ .
Where $=Dia of bar.
n=2 for plain mild steel bar.
n=4 for HYSD bar.
So radius of hook= 2$. So option is correct.
Where $=Dia of bar.
n=2 for plain mild steel bar.
n=4 for HYSD bar.
So radius of hook= 2$. So option is correct.
Nabin said:
4 years ago
The radius of bar bend to form a hook=2d.
The length of straight portion of a bar beyond the end of hook should be least=4d.
The length of straight portion of a bar beyond the end of hook should be least=4d.
BIJAY KUMAR said:
5 years ago
For mild 2 times.
Deformed 4 times.
.
According to question, we require a minimum hook. So the Answer will be A.
Deformed 4 times.
.
According to question, we require a minimum hook. So the Answer will be A.
(1)
Karthika said:
9 years ago
But above question not specified mild steel or cold worked steel. Then how to identify this? Please explain it.
Krishna said:
6 years ago
HOOK is not provided for HYSD, only for mild steel, it is provided. Therefore it's 2.
(1)
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