-
A column of size 450 mm × 600 mm has unsupported length of 3.0 m and is braced against side sway in both directions. According to IS 456: 2000, the minimum eccentricities (in mm) with respect to major and minor principal axes are:
-
- 20.0 and 20.0
- 26.0 and 21.0
- 26.0 and 20.0
- 21.0 and 15.0
Correct Option: A
As per IS 456: 2000
| emin = | + | or 20 mm, whichever is minimum. | ||
| 500 | 30 |
| exx = | + | 26 mm > 20 mm, | ||
| 500 | 30 |
| eyy = | + | 21 mm > 20 mm, | ||
| 500 | 30 |
Both exx and eyy are greater than 20 mm.
∴ we take 20 mm each.
