Disel Pump Pad 1

[sia101]

I am on a disel fire pump foundation plinth to explain for my contractor. being Mech Engr I have very little knowledge to search for the design information. I have figured so far 100 psi @ 1500 gpm pump and a desel driver will be on the plinth. I need some guidance for baseplate anchor bolt and concrete pad design. If anyone had designed pump pad, experienced input will be very appreciated.

 

[stookeyfpe]

The fire pump manufacturer will provide you with the dimensions for anchor bolt placement and required dimensions. Foundation design: I leave that to the structural engineer.

 

[GeorgeMech]

For the foundation design you may use 3-5 times the weight of the pump&diesel engine as a rule of thumb if no structural engineer is available, however, if you want a conservative way of sizing the pump foundation you need to consult a civil / structural engineer. J bolts can be used for anchoring with a length size of 10-15 times the diameter as standard practice.

 

[Duwe6]

"use 3-5 times the weight of the pump&diesel engine"

what George said;
If this engine-driven pump would run continuously, 10X weight is the rule-of-thumb answer. 3 to 5X will be generous for something that will be run monthly or quarterly for a few minutes each time. Ans I'd stay away from CivE's for pump foundations. Get with a MechE familiar with design for rotating equipment - "pumps". It is a narrow specialty that has more to do with vibration and harmonics than with strength. Also, use non-shrink epoxy grout [versus cementious] to bed the pump and motor to the pump pad. It's probably overkill, but it makes a nice transition from 4K psi concrete to 36 Ksi steel frames. Bond strength of about 4Ksi and a compressive of about 13Ksi.

 

[3cio]

Guys,

3-to 5x times the weight is the rule of thumb.

refer to NFPA-20 handbook (2007 ed.). this was explain in the annex together with the calculation.