Pump plinths
Pump plinths
(OP)
We are currently installing new pumps in an old treatment plant where a completely new set up pumps (new duty and purpose) is required. The pumps are generally recycling and transfer pumps ( Qmax = 600m3/hr, so relativly small installation)The pumps are to be supplied with their own steel frame, but to ensure the correct levels pump plinths are required
As regards the pump plinths, what design principles should I be loking at in terms of the design? I was wondering whether reinforced plinths are required or whether simply a mass concrete base will suffice. Perhaps the mass concrete should be doweled to the existing RC floor.
I know vibrations, thrusts, etc need to be taken into account, but I am looking for guidelines from which to work.
As regards the pump plinths, what design principles should I be loking at in terms of the design? I was wondering whether reinforced plinths are required or whether simply a mass concrete base will suffice. Perhaps the mass concrete should be doweled to the existing RC floor.
I know vibrations, thrusts, etc need to be taken into account, but I am looking for guidelines from which to work.





RE: Pump plinths
regards
John
RE: Pump plinths
At this stage my concern is mainly the issue of rebar. From your descrpition, you are definitly in favour of a doweled connection to the RC floor. I am concerned, though, about placing rebar in the plinth itself as this may clash with the anchor bolts for the pump/motor bases. I have seen this type of installation before and special drilling equipment is then required to "cut" through the rebar.
Also, all I can see that rebar in the plinths will do is limit a bit of shrinkage (not an issue because largest plinth is 1.7m x 0.9m) and provide dimensional stability should ancor bolts be drilled into the concrete.
RE: Pump plinths
best of luck
John