RCC Structures Design
The toe projection of foundation slabs is taken

Equal to heel slab
Below ground surface
As one third of the base
As one sixth of overall height of the wall

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

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
Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier
All listed here

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