The minimum percentage of steel in a reinforced concrete column (IS 456) is:
Choose the correct answer
0.12% (same as slab)
0.8% of gross cross-sectional area
2% always
5% minimum
Correct Answer
B. 0.8% of gross cross-sectional area
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IS 456 Cl. 26.5.3: Minimum longitudinal steel in column = 0.8% of gross sectional area. Maximum = 6% (4% at splices). Minimum steel ensures minimum ductility and control of long-term creep and shrinkage deformation. Minimum 4 bars for square/rectangular and 6 bars for circular columns.
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