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Re: Steel Building Bracing

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What factor of safety is prudent on design of steel cable for tension
x-framing?
Chris Towne, E.I.T.


The standard "Design Factor" for cables used in rigging is 5.
However, you should seriously consider the stretch and elasticity of 
cables before you use them in a building bracing system.  The 
deflections you would get will be much larger than if you used steel 
rods.



________________________________________________
Greg Varney, S.E.
KPFF Consulting Engineers
1201 3rd Avenue, Suite 900
Seattle, Washington  98101
(206) 622-5822
email:  gregv(--nospam--at)kpff.com

It's always easy to see both sides of an issue we 
are not particularly concerned about.