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Load capacity for a machine on a concrete slab.

Lanza

Mechanical
Jun 10, 2023
2
I require some help for load capacity on a concrete slab.
I currently have a lathe on a 100mm concrete slab
I'm going to assume its 30mPA
It has mesh in the concrete, but I don't know what size.

I'm a machinist by trade so someone with knowledge in civil engineering might be able to point me in the correct direction.

Load capacity= slab thickness * concrete stength * area coverage
LHS plinth load capacity= 0.100* 30 mPA * (0.406*0.470)
0.573mPA

RHS plinth load capacity= 0.100* 30 mPA* (0.406*362)
0.441mPA

I want to place 8 plates underneathe the corners where there are jacking screws.
I was planning on using 165x165mm plate at least 25mm thick.
Weight of the machine is 1.2 tonnes, the heavier end is the LHS where the head stock is. I don't know the difference in weight.

My question is what area size should my 8 plates be underneathe the lathe?
 

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