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impact load factor for HVAC air handling unit

impact load factor for HVAC air handling unit

impact load factor for HVAC air handling unit

(OP)
The HVAC air handling unit is supported at four corners. Which impact factor should be used?
Below are from ASCE

(2) light machinery,
shaft- or motor-driven, 20 percent;
(3) reciprocating machinery or power-driven units, 50 percent;

Thank you!

RE: impact load factor for HVAC air handling unit

(OP)
Also there is other HVAC air handling units (840 lb) and air cooled condensing units (860 lb each) will be supported by slab on grade. Will a 6" thick slab on grade be adequate or is there some reference I can use to do the calculation?

RE: impact load factor for HVAC air handling unit

860lb is not really something to get excited about. What is the footprint size of these units? I.e. How far are the 4 supports spaced? The 150mm slab on grade should be OK.

RE: impact load factor for HVAC air handling unit

(OP)
The foot print size is 5 ft x 3.25 ft. The four supports are at the four corners. Thank you.

RE: impact load factor for HVAC air handling unit

(OP)
just have the post up.

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