RCC Structures Design
If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and σc are the modular ratio and maximum stress in the configuration of concrete, the strength of column is

σcAc + m σcAsc
σc(A - Asc) + m σcAsc
All listed here
σc[A + (m - 1)Asc]

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RCC Structures Design
The self-weight of the footing, is

Not considered for calculating the upward pressure on footing
Also considered for calculating the upward pressure on footing
Not considered for calculating the area of the footing
Both (b) and (c)

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RCC Structures Design
A pre-stressed concrete member is preferred because

Removal of cracks in the members due to shrinkage
Its dimensions are not decided from the diagonal tensile stress
All listed here
Large size of long beams carrying large shear force need not be adopted

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