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Old 07-19-2018, 12:43 PM   #1
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Default Fan Support on Steel truss

I need to mount a ceiling fan on a rounded steel truss system, and having a hard time wrapping my head around it.

My idea was to just use a fan box and thread a U Bolt through and over the beam threaded through a 1900 blank on the top side to keep it from rocking and rolling.

Surely someone has a better idea that that. Picks of licks will help my visualize it
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Old 07-19-2018, 12:50 PM   #2
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Is welding an option? If so, a flat plate welded to the round beam.

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Old 07-19-2018, 12:50 PM   #3
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Better than that? How can that idea be topped? Do it.
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Old 07-19-2018, 01:05 PM   #4
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How big the ceiling fan is ??
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Old 07-19-2018, 01:11 PM   #5
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How big the ceiling fan is ??
96-inches
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Old 07-19-2018, 01:14 PM   #6
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Is welding an option? If so, a flat plate welded to the round beam.

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Def not within my skills
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Old 07-19-2018, 01:56 PM   #7
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96-inches
That's eight feet! How are you mounting the fan?
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Old 07-19-2018, 01:59 PM   #8
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Straddle parallel trusses with strut, hang fan from strut.
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Old 07-19-2018, 02:05 PM   #9
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Straddle parallel trusses with strut, hang fan from strut.
Mount box to strut & flex to fan.
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Old 07-19-2018, 02:28 PM   #10
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hahah, Duh. I forgotten that I've done that before. Thanks guys, I'm an idiot
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Old 07-19-2018, 02:58 PM   #11
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You're not an idiot. Yesterday I forgot how to open the hood on my van. I'm an idiot.
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Old 07-19-2018, 03:51 PM   #12
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8 feet that is pretty serious fan size .,, but make sure you mounted good so it will not come loose on that.

The biggest one I installed was 18 footer now that really blow a lot of air!!
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Old 07-19-2018, 04:28 PM   #13
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You're not an idiot. Yesterday I forgot how to open the hood on my van. I'm an idiot.

I have to go through security at least once a week and we have to open everything up. I constantly wrestle with the hood.
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Old 07-19-2018, 04:38 PM   #14
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hahah, Duh. I forgotten that I've done that before. Thanks guys, I'm an idiot


You were just over thinking it. I do that all the time.
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Old 07-19-2018, 04:51 PM   #15
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Small additional point, if possible I put the strut on top of the truss bars rather than hang the truss under, this way the fasteners are just holding the strut in place, not taking the weight of the fan.
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Old 07-19-2018, 05:43 PM   #16
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Small additional point, if possible I put the strut on top of the truss bars rather than hang the truss under, this way the fasteners are just holding the strut in place, not taking the weight of the fan.
Do what the guy that owned my house before I bought the place, just hang them on a Bakelite box with a standard fixture bar.

The only good thing about bakelite boxes is removing them, smack them lightly with Kleins and a screwdriver and they shatter.

I but the would hold up if a fan was slightly out of balance NOT.
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Old 07-19-2018, 05:47 PM   #17
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Small additional point, if possible I put the strut on top of the truss bars rather than hang the truss under, this way the fasteners are just holding the strut in place, not taking the weight of the fan.
Also, most of the plant safety or job site inspectors I’ve dealt with would also require a looped steel cable with Crosby-type clamps to hold the fan as a safety means in case a bot comes loose or whatever.
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Old 07-19-2018, 06:52 PM   #18
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Fan Support on Steel truss-fan.png


Hurricane irma couldn't get this one down. It had a safety wire just in case
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Old 07-20-2018, 12:02 AM   #19
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I'm no fan of big fans..............
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Old 07-20-2018, 01:07 AM   #20
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http://docs.bigassfans.com/eseries/e...tall-guide.pdf


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