How do you calculate ground bearing pressure for cranes?
Crane Ground Bearing Pressure Calculator
pressure is equal to force/area therefore, the ground bearing pressure would equal the (weight of the crane + the weight of the load) / area of the base of the crane.
You use statics. You get the specs for the crane and what it is lifting and determine from the site the pick angles and where the outriggers are going to be placed. Then you do the 3-D calcs to determine the reactions necessay and determine the soil's allowable bearing pressure, then design temporary footing based on that.
