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

All listed here
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
Is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum stress earlier

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RCC Structures Design
In a beam the local bond stress Sb, is equal to

Shear force/(Leaver arm × Total perimeter of reinforcement)
Leaver arm/(Shear force × Total perimeter of reinforcement)
Total perimeter of reinforcement/(Leaver arm × Shear force)
Leaver arm/(Bending moment × Total perimeter of reinforcement)

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RCC Structures Design
For a ribbed slab

Clear spacing between ribs shall not be greater than 4.5 cm
Width of the rib shall not be less than 7.5 cm
Overall depth of the slab shall not exceed four times the breadth of the rib
All listed here

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RCC Structures Design
The spacing of transverse reinforcement of column is decided by the following consideration.

The least lateral dimension of the column
Forty-eight times the diameter of transverse reinforcement
Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column
All listed here

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