Curtainwall Deflection Clips
Curtainwall Deflection Clips
(OP)
I am designing a light gage steel head support for an 18 ft. tall curtainwall system. The curtainwall vertical mullions are about 5 ft. O.C.. My framing is rigidly attached to the structure so CW installer will need to use deflection clips on his system. Does anyone if the clips can only be installed at the vertical mullions or can they be installed at a tighter spacing - such as 16" O.C. The reason I ask is that a deflection clip will add a localized moment and prying to the track of my header due to the eccentricity. (I assume anyhow - unless that somehow gets reacted into the mullion) I would like to minimize this stress.
Thanks
Thanks






RE: Curtainwall Deflection Clips
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Curtainwall Deflection Clips
Do you know if the mechanism slides down deeply into the vertical mullion to develop a moment resisting, sliding connection?
RE: Curtainwall Deflection Clips
I would wager yes, even if that effect is unintentional. I'd like see that confirmed by the manufacturer though.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Curtainwall Deflection Clips
Let the calculations determine whether a deep leg track is sufficiently strong enough to laterally support intermediate studs at 16" oc without going to the heavier slotted clip angles. I would guess that the studs over the CW header are short enough that a standard deep leg track is all that is required but for the 18 foot full length studs, clips will probably be required.
RE: Curtainwall Deflection Clips
I typically design the continuous track at the bottom of the cold formed steel framing for a uniform wind load.
DaveAtkins
RE: Curtainwall Deflection Clips
I have been doing a uniform load, but have started thinking a little deeper about it lately. How does an aluminum receptor work?
RE: Curtainwall Deflection Clips
DaveAtkins