RCC Structures Design
If P kg/m² is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by

D = 0.0775 aP
D = 0.00775 aP
D = 0.07775 aP
D = 0.775 Pa

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

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

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