Specifying Steel Cable Closure 1

[CFSEng]

I am designing a steel cable (about 5 ft long) used to support 650 lbs from a bar joist. If I'm using a 1/8" dia 7x19 cable, how do I design / specify the closure of the cable assuming I'm going to loop it around the joist?

Thanks for the help.

 

[youngstructural]

I can't picture a place where I would do this, but assuming that there is some logical reason that a more robust solution such as a rod or HSS tension member cannot be used, you will want to look into catalogues for cable connections. These are typically done for guy-wire anchoring and other such specialist applications. Be careful as I have yet to see such a catalogue with data to limit states design (LRFD); I believe you're going to have to be working stress design for your connections.

Good luck,

YS

B.Eng (Carleton)
Working in New Zealand, thinking of my snow covered home...

 

[kelowna]

rope clips are the cheapest and easiest thing
see attached

http://www.cgedwards.com/Crosby/Crosby-PL1.html

http://catalog.thecrosbygroup.com/body_046.htm

http://catalog.thecrosbygroup.com/BODY_028.HTM

 

[JStephen]

A lot of the catalog information will give breaking strength rather than, or in addition to, allowable load.

The strength of a loop of wire rope is reduced considerably if it goes around a sharp edge; take that into account.

If this is a one-off detail, it would be pretty cheap to considerably overside the cable.

 

[CFSEng]

kelowna,
Thanks for the links, that was what I was looking for.

JStephen,
Based on calcs, a rather small wire will work so yes, I'm going to oversize so I don't have to worry about it.