How do you calculate ground bearing pressure for a crane?

Crane Tech teaches a 4 step process: Calculate the FORCE exerted on the ground (i.e. crane weight and attachments, plus load weight and rigging) Obtain the Ground Bearing Capacity (GBC) permitted for the soil you are set-up on. This is the PRESSURE the soil can withstand. Determine AREA by calculating FORCE ÷ PRESSURE.

What is ground bearing pressure measured in?

pascals
Ground pressure is measured in pascals (Pa) which corresponds to the United States customary units unit of pounds per square inch (psi). Average ground pressure can be calculated using the standard formula for average pressure: P = F/A.

How is crane load capacity calculated?

To calculate the crane capacity index, use this formula: (Average (radius x max (lifting height x capacity))) / 100. Let’s take a look at how these variables can affect your specific project.

How do you measure crane pads?

Crane mat size can be calculated by dividing the crane load by the maximum permissible ground pressure. Not only do crane mats used for distribute outrigger loads need to be suitably sized they also need to be strong to withstand the load imposed by the crane outriggers.

How to calculate ground bearing pressure on a crane?

CRANIMAX (CRANEbee) 3DLiftPlan Outrigger Pad Load Calculators Ground Bearing Pressure Installation Guide Application Download Ground Bearing Pressure Estimator

What do you need for a bearing pressure calculator?

I think you are asking about the imposed load rather than the bearing capability of the soil. You will need the surface area of each outrigger or contact area of each track (call this A),the number of bearing points (N) and the all up weight of the crane plus the load to be lifted (W)

Which is an example of track bearing pressure?

The calculation of the track bearing pressures in an appropriate manner consistent with the BRE design method is a fundamental requirement of its use, and the use of bearing pressures calculated by any other means could potentially lead to an unsafe working platform design. All of the figures below are general examples.

Where is the highest pressure on a crane?

With no load on the hook the pressure is at highest under the rear of the tracks due to the counterweight. With the jib in line with the tracks and a load on the hook there will be an equal triangular or trapezoidal loading under each track. As the jib is slewed around until it is over the end of one track, the pressure increases under that track.