RCC Structures Design
The modular ratio ‘m’ of a concrete whose permissible compressive stress is ‘C’, may be obtained from the equation.

m = 700/3C
m = 1400/3C
m = 2800/3C
m = 3500/3C

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RCC Structures Design
As per IS : 456, the reinforcement in a column should not be less than

0.5% and not more than 5% of cross-sectional area
0.8% and not more than 8% of cross-sectional area
0.7% and not more than 7% of cross-sectional area
0.6% and not more than 6% of cross-sectional area

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