RCC Structures Design
The load stress of a section can be reduced by

Replacing larger bars by greater number of small bars
Replacing smaller bars by greater number of greater bars
Decreasing the lever arm
Increasing the total perimeter of bars

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RCC Structures Design
If the depth of actual neutral axis of a doubly reinforced beam

Is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum stress earlier
Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier
Is equal to the depth of critical neutral axis; the concrete and steel attain their maximum stresses simultaneously
All listed here

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