The concrete pier shown below is loaded at the top with a un

The concrete pier shown below is loaded at the top with a uniformly distributed load of 600 lb/ft^2. Find the stress distribution on section A-A. All dimensions are in inches

Solution

total load acting on concreate pier=600xarea at the top=600x2x2=2400 lb

at A-A section-area=(4x2)-(0.25x2)=7.5 ft²

compressive stress=force/area=2400/7.5=320 lb/ft²

stress distribution is same at any point on AA sectioni.e ractangular