How is angle of dispersion used in footing, Mechanical Engineering

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How is angle of dispersion used in footing?

Angle of Dispersion

Indian Standards (IS) has specified relation for determining the angle, of dispersion. According to IS the angle of dispersion of load α within the footing is taken as a function of the ratio between strength of concrete fck and the imposed stress onto the soil, q.

tanα ? 0.9 ((100q/fck) + 1)1/2

Under this condition there will not be any tension at the base. Steel reinforcement is not necessary. It is to be noted that tension is not permitted at the base.


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