That would make sense if this were a shackle, but I think a quicklink is only designed for linear loads as well. So you aren't really making anything safer by putting the stress on the sides of a quicklink vs the hook, and I think I'd trust the hook to hold in this case more than the quicklink... Not that I'm saying it's the right solution, just that the quicklink doesn't make it less wrong.Takes the stress off the hook and puts it in the quick link. Same reason you never hoor directly to a basket or bridle
No. Truss/beams gets their strength from how far apart the top and bottom cords are and how often they are connected together. Connecting two pipes with cheeseborough does not put the pipes far enough apart and not often enough to do anything useful.
No. Truss/beams gets their strength from how far apart the top and bottom cords are and how often they are connected together. Connecting two pipes with cheeseborough does not put the pipes far enough apart and not often enough to do anything useful.
Once again, this thread scares me.
Also he says looking at the high steel
You can't Bridle from there ...
Why not? The hoist would land slightly below the level of the low steel, but assuming that you're not extremely limited by trim height, that's an easy bridle to make. And if you do need it tight to the low steel, you may be able to DO ALL THE NECESSARY CALCULATIONS AND POSSIBLY make a slightly looser bridle that will keep the hoist above the low steel - emphasis on the calculations, as bridles start to get scary when you increase the angle even slightly beyond 90°.
Ground Support. Or stick truss instead of that pipe. Granted, that pipe could be used if the math was able to back it up. You can do anything you want as long as your numbers are good.
If that pipe is 1-1/2 sch 40 and you have a 10' span you can do 200# center point load. Way over that here. Best case scenario they are using 2" sch 80 structural pipe and can do roughly 450# CPL with a 10' span. If the span was 6' they could smash 1200# on that pipe... but I don't think that is the case here. Either way, that leaves little wiggle room.
Ground support is sometimes the way to go.... especially in rooms like this that were never built for additional roof load. Those light duty roof trusses are meant to hold tar and AC units... not dynamic loads.
It's hard to tell from Those pics but no span sets were used . Those are all slings on high steel . Ur thoughts ?
1)I am trying to look for the chart Christie LITES provides , it basically states how much weight vs how long truss weight can take
Ex. 32 feet of truss has CPL of 250lbs. ( I could be wrong with the
Numbers , I have seen the chart I just can't find it anymore )
2)Also
What is 1-1/2 sch 40 or sch 80
Is there a chart I can refer to?
3)The shorter the spanset the more weight it can take? Does it matter how many wraps around the pipe or steel you making ?
Thx
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