Civil Engineering - RCC Structures Design - Discussion
Discussion Forum : RCC Structures Design - Section 1 (Q.No. 6)
6.
An R.C.C. column is treated as long if its slenderness ratio is greater than
Discussion:
94 comments Page 8 of 10.
Jitendra kumar said:
7 years ago
According to IS: Code 456-1978.
S.R .is less than 12 that's called a short column.
And S. R. is equal to up in 12 that's called long column.
S.R .is less than 12 that's called a short column.
And S. R. is equal to up in 12 that's called long column.
Lovith said:
7 years ago
Yes, 40 is the right answer.
Raj said:
7 years ago
L to lateral dimension > 12.
Or.
Slenderness ratio greater than 120 is a long column.
Or.
Slenderness ratio greater than 120 is a long column.
Hannanur Rahaman said:
7 years ago
D. 50 is correct.
Vishal said:
6 years ago
Let me clear all ur doubts,
L/least dimension <3=pedestal,
3-12 = short column,
12-60= intermediate col,
>60.
Also;
L/radius of gyration<30= short col,
30-120=intermediate col,
>120.
L/least dimension <3=pedestal,
3-12 = short column,
12-60= intermediate col,
>60.
Also;
L/radius of gyration<30= short col,
30-120=intermediate col,
>120.
(3)
Swar said:
6 years ago
I think option C 40 is correct.
RATANDEEP said:
6 years ago
IS 456 2000 clause 25.3.1 explained about unsupported length, not for short/long column.
Dibya said:
6 years ago
According to is 456 2000, for long column λ should be less than 60.
Ashibul said:
6 years ago
L/b <= 3 pedestal.
3<L/b<=12 short column.
12<L/b<=60 long column.
L/b >= 60 redesign.
As per IS456: 2000.
3<L/b<=12 short column.
12<L/b<=60 long column.
L/b >= 60 redesign.
As per IS456: 2000.
(1)
Amol jadhav said:
6 years ago
According to IS 456:2000 (Clause no.25.3.1).
The unsupported length between end restraints shall not exceed 60 times the least lateral dimension of a column.
The unsupported length between end restraints shall not exceed 60 times the least lateral dimension of a column.
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