Calculation of Floor Load Rating required for heavy machine
Need to cal how much floor load needed to place a 14 tons rolling mill. Machine Foot print is 8 x 12 ft.
Factory floor load is 20 kN/m2.
Factory space is 10 x 10 m2.
Peter:
There are two loads you need to be concerned about:
1. The static weigh of the machine
2. The operational loads imposed.
Although the operational loads of a rolling mill are not as high as other types of industrial equipment they still need to be taken into consideration.
These loads will the imposed on the floor through the feet or base of the machine. Machines is approximately 2.4 x 3.6 meters or a total of 8.64 square meters. Assuming that the entire base is available and there are no leveling pads then the force exerted on the floor is 125KNewtons (assuming that the weigh not given in metric tonnes) so the total force imposed by the machine when not working is approximately 14.4 kN/m^2.
Although it appears that the factory floor rating is marginally adequate, the safety factor is only 1.38. Also this does not consider any vibrational load when the machine is in operation.
Since the available floor size is larger, you could spread the load out further. Please, be aware that these only “back of the envelope calculations”. To determine if the factory floor strength is adequate, you need to have the installation of the machine reviewed by a competent building engineer.
Niel Leon
Community Developer – Engineering.com
