Determine footing moment analysis, Mechanical Engineering

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Determine footing moment analysis for given demonstration.

1648_Footing Moment Analysis.png

Ans:

Assuming effective depth as d, Bending moment M at the face of column

M = ((273.60 x 2.80 x (1.40 - 0.205)²)/2kN-m

= 547 kN-m = 547 x 10⁶N.mm

d = (M/k_b)^1/2

Here K is obtained from exact formed table, L = 2800 rnm

d = (547 x 10⁶)/(2.76 x 2800)

= 266 mm

You can see that in this particular example, one way shear controls the thickness of the footings. Effective depth of 530 mm is selected.

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