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

Decreasing the lever arm
Replacing larger bars by greater number of small bars
Replacing smaller bars by greater number of greater bars
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 greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier
Is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum stress earlier
All listed here
Is equal to the depth of critical neutral axis; the concrete and steel attain their maximum stresses simultaneously

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