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Disel Pump Pad 1

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sia101

Mechanical
Joined
Jun 5, 2003
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10
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.

 
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.
 
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.
 
"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.
 
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.
 
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