Posted by Sherman in Idaho [24.32.202.166] on Saturday, May 11, 2013 at 22:11:39 :
In Reply to: Wire rope/ cable? posted by Perry [71.172.35.107] on Saturday, May 11, 2013 at 21:24:28 :
Obviously the more strands the better for workability. Cable made for static applications has fewer strands because it's cheaper and lasts longer that way. I'm not sure if this is a temporary or permanent setup, but either way the choice might depend on what you can get surplus locally. Around here, you could get used mine hoist cable. Any TV towers being demolished in your area? Maybe call the demolition contractors and see? Used cable is usually very cheap because the scrap dealers won't take it unless it's chopped up into short pieces, which takes more labor than it's worth. In Everett, I know where there are some surplus submarine nets, made of 1" cable, that could be had for cheap to free if you could load them.
I have to wonder about the requirement for 1" cable, though. Is that something some building inspector told you you needed? I don't know how big the dumpsters are, but a typical large one might hold 20 yards, or roughly 20 tons. 1" wire rope has a working load of around 15 tons, so it's in the ballpark in terms of the force it would take to move the dumpster. The bigger question is how strong the house is. I can't imagine there's any point of attachment on a house at which one could pull downward at an angle with anywhere near 15 tons of pull and not destroy the house. I would really question the cable requirements and would go back to the engineer who came up with that and ask him where you're supposed to attach to the house, and how much pull that part of the house can take without being destroyed. Then work backwards from there and come up with a much more modest size cable, maybe 1/2" (4 tons). There is no point in a cable being stronger than the weakest thing it's anchored to at either end. When you're dealing with 1" cable, attachments get tricky. It's not just a matter of wrapping it around a thimble and putting 3 crosby clamps on it.
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