RCC Structures Design
If the bearing capacity of soil is 10 tonnes/cm² and the projection of plain concrete footing from walls, is a cm, the depth D of footing is

D = 0.775 a
D = 0.0775 a
D = 0.775 a²
D = 0.775 √a

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RCC Structures Design
According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is

Three-fourth of the width of the slab
Half of the width of the slab
Four-fifth of the width of the slab
Two-third of the width of the slab

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