alleryStart learning →Slenderness ratio of a column is:
ARandom
BL_e/r_min (effective length / least radius of gyration)
CL/d
DL only
Answer & Solution
Correct answer: B. L_e/r_min (effective length / least radius of gyration)
Slenderness ratio λ = L_e/r where r = √(I/A) = radius of gyration.
High λ: long column, buckles.
Low λ: short column, crushes.
**Per IS 456:** short if λ ≤ 12 in both directions.
**Per IS 800 (steel):** KL/r limits, e.g., 180 for tension members, less for compression.
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