A 20-kips axial load is applied to a short wooden post which is supported by a concrete footing resting on undisturbed soil as shown. Determine the size "b" of the concrete footing if the average bearing stress on the soil is not to exceed 30 psi.
a. b = 25.8 in.
b. b = 22.4 in.
c. b = 18.3 in.
d. b = 15.8 in.
Bearing stress is defined as the applied load divided by the bearing area. ...
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