Deflection Limits for Mechanical Equipment Framing
Deflection Limits for Mechanical Equipment Framing
(OP)
Designing the support framing for several roof top cooling towers. The structure will be steel and about three feet off the roof top. The dimensions are preliminary but as of right now are 14 ft x 23 ft. Unit operating weight is approximately 34.5 kips. In the equipment cut sheet, no deflection limits are given for the unit's framing and I was wondering what others use in such cases? L/360? L/600?
Thoughts are appreciated.
Thoughts are appreciated.






RE: Deflection Limits for Mechanical Equipment Framing
BA
RE: Deflection Limits for Mechanical Equipment Framing
The mech. unit is on its own frame and is usually not particularly sensitive to its exact elevation, +/- ½". But, someone has to determine what the hard piping and other connections will tolerate in the way of vertical and lateral movement. And, this relative movement has to be designed for.
RE: Deflection Limits for Mechanical Equipment Framing
RE: Deflection Limits for Mechanical Equipment Framing
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Deflection Limits for Mechanical Equipment Framing
RE: Deflection Limits for Mechanical Equipment Framing