The slenderness ratio of a 4 m long column supported throughout its length by a masonry wall is
- A0Correct
- B10
- C100
- Dcan't be specified
Solution
Concept
Lateral support throughout the length
Formula
λ = Le/r
Step-by-step solution
1. A column fully supported along its length by a masonry wall cannot buckle. 2. Its effective length is zero, so λ = 0.
Explanation
With continuous lateral support there is no unsupported length, so the effective length and the slenderness ratio are zero.
Why the other options are wrong
10 and 100 would need a definite unsupported length.
Shortcut
Fully supported → Le = 0 → λ = 0.
Common mistake
Using the physical length 4 m as Le.
Correct answer: A) 0