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Author Topic: Whats our feeling on (conduit) beam clamps for permenant hanging?  (Read 1092 times)

Tim Weaver

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I'm talking about these guys:


If you are permenantly hanging a single fixture (leko, fresnel, par type) on a beam what is the best practice? Use one of these guys and a safety around the beam? Or is there another option?
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James Feenstra

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Re: Whats our feeling on (conduit) beam clamps for permenant hanging?
« Reply #1 on: June 29, 2017, 12:13:25 pm »

these beam clamps are typically rated for ~300lbs, have used them for installing light fixtures (light as in weight, ~20lbs or so per fixture) permanently with threaded rod/locking washers/etc in the past. All rated components.

If done properly I don't see this being a problem as they're well overengineered for the task and being used in the application they were designed
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Cailen Waddell

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Re: Whats our feeling on (conduit) beam clamps for permenant hanging?
« Reply #2 on: June 29, 2017, 12:24:00 pm »

We use them with our worries.  I would still ensure you have a safety.  Especially because in high vibration environments I have seen these shift very slightly....


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Mark Cadwallader

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Re: Whats our feeling on (conduit) beam clamps for permenant hanging?
« Reply #3 on: June 29, 2017, 12:48:19 pm »

I would be nervous using them on a tapered beam surface, unless there was a consistent (and documented) inspection process. I would not be particularly concerned if clamped to relatively flat surface.

I've seen a venue that uses pairs of those, 1/8" cable (randomly and incorrectly clamped), to hang 100# MI grade speakers by their handles over a stage. It scares the willies out of me. The venue doesn't care. I don't do any work there, and am uncomfortable even as a audience member there.

Edit:  And of course, a safety cable around the beam. It goes without saying, but I didn't expressly say so.
« Last Edit: July 04, 2017, 12:46:44 am by Mark Cadwallader »
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Tim Weaver

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Re: Whats our feeling on (conduit) beam clamps for permenant hanging?
« Reply #4 on: June 29, 2017, 12:52:42 pm »

I would be nervous using them on a tapered beam surface, unless there was a consistent (and documented) inspection process. I would not be particularly concerned if clamped to relatively flat surface.

I've seen a venue that uses pairs of those, 1/8" cable (randomly and incorrectly clamped), to hang 100# MI grade speakers by their handles over a stage. It scares the willies out of me. The venue doesn't care. I don't do any work there, and am uncomfortable even as a audience member there.


We have flat beam "I's" here. This will let me place 4 Ellipsoidals in startegic places to shoot around house lights.

Thanks ya'll
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Jamin Lynch

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Re: Whats our feeling on (conduit) beam clamps for permenant hanging?
« Reply #5 on: June 29, 2017, 10:20:20 pm »

I'm talking about these guys:


If you are permenantly hanging a single fixture (leko, fresnel, par type) on a beam what is the best practice? Use one of these guys and a safety around the beam? Or is there another option?

What could possibly go wrong?  ::)

Drill and bolt in place for me. Might be harder but it's safer
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BrianHenry

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Whats our feeling on (conduit) beam clamps for permenant hanging?
« Reply #6 on: June 29, 2017, 10:44:51 pm »

Drilling a structural beam without consulting an engineer or at least the manufacturer's guidelines for the product can potentially transfer a great of risk to you. Also, drilling the flange of the beam is far less commonplace than drilling the web.

Beam clamp and safety wire.


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Jamin Lynch

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Re: Whats our feeling on (conduit) beam clamps for permenant hanging?
« Reply #7 on: June 29, 2017, 11:21:16 pm »

Drilling a structural beam without consulting an engineer or at least the manufacturer's guidelines for the product can potentially transfer a great of risk to you. Also, drilling the flange of the beam is far less commonplace than drilling the web.

Beam clamp and safety wire.


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Really?

A 3/8" hole drilled in a red iron bean will effect the structural integrity of the beam? Please.
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Tim Padrick

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Re: Whats our feeling on (conduit) beam clamps for permenant hanging?
« Reply #8 on: June 29, 2017, 11:31:13 pm »

If the beam ever fails, the guy who drilled the hole will be responsible whether the hole caused the failure or not - unless he has a couple hundred thousand to pay good lawyers and the right consulting engineer expert witness.
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BrianHenry

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Whats our feeling on (conduit) beam clamps for permenant hanging?
« Reply #9 on: June 29, 2017, 11:58:24 pm »

Really?

A 3/8" hole drilled in a red iron bean will effect the structural integrity of the beam? Please.

I chose my words carefully. I said transfer of risk, not that it would fail.

Unfortunately my proofreading leaves something to be desired as I did leave a word out by accident lol

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« Last Edit: June 30, 2017, 12:06:10 am by BrianHenry »
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