Sprigs that are over 4-feet in length are required to be restrained under NFPA 13.
What options do we have to achieve this?
I'd like to hear some different methods used to do this to expand my own knowledge here. Different situations like construction type and if the structural members are above or below the sprig. Thanks so much.
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4/6/2022 07:14:37 am
4/6/2022 07:18:23 am
Taking a shot in the dark, so take with a grain of salt:
4/6/2022 08:26:36 am
What we use out in field and have found to have the most and quickest for field installation no matter what building type might be, is rod with swivels and a 1" hanger. The swivel allows you to be at multiple angles. It's what we our guys use on all of our installs that need this. This way and cable allow you the flexibility as a designer so you don't have to hit building members perfectly for clamps. It gives the field guys flexibility as well if other trades may be close or in the way. Installers are already used to using swivels and rod. We also span unistrut between members and attach swivels and rod for the random times the building members are too low or something like that.
4/6/2022 08:31:05 am
Several things we see for this solution. We have used tees in the sprig to arm over and support the sprig below adjacent structure. Unistrut and u-bolt if sprig exists between structure. Lateral sway bracing or 4-way bracing.
4/6/2022 09:06:02 am
In our jurisdiction most if not all projects are a seismic zone that requires additional restraint. Taking into account the construction design wires, cables and or rods with swivel clamps have been the preferred products to use.
4/6/2022 11:44:54 am
Any time we've dealt with this:
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