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Real world rigging problem
I'm back. :)
And, unfortunately, meeting with the client tomorrow afternoon.
Referencing the attached pdf...
I need to rig a video wall on a pipe grid.
The grid is 6' x 6', schedule 40 black pipe.
The pipe grid is load rated: 375# Center Point Load (CPL).
Each end of the pipe is welded to a 12" hexagonal plate, which is in turn welded to a vertical stanchion.
The rating on the stanchion is 1500#.
I am very, very, very comfortable calculating the loads of each of the points of attachment of the video wall.
I do that almost every day. (Like for Metallica, with a load of around 320,000 pounds hanging from the grid.)
But this is a somewhat smaller venue, with a corresponding lighter weight grid.
The video wall will be suspended by 3/8" wire rope, I'll probably spec 7x19 GAC.
This creates what is essentially a point load on the pipe.
All of the above is background information...
the real question is how do i figure out what the "crushing" point is for 1.5" schedule 40 pipe?
And, with a nod to Mr. Pinkerton (whom I miss on this forum), I realize that asking for this type of information over the internet will likely result in the venue exploding from internal forces, or, at least catching on fire and killing thousands of people.
I'm willing to live with that possibility.
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