Angles at Alum. storefront headers.

OpeningDesign / Sports_Complex

A Sports Complex in Southern Wisconsin

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Angles at Alum. storefront headers. #66

Closed theoryshaw closed 8 years ago

theoryshaw commented 8 years ago

@KevinZinsmeister @andyeck1

Simple request, can you help size the steel angle & fasteners for head condition of the alum storefront frame here..

KevinZinsmeister commented 8 years ago

@theoryshaw Is there a reason the mullions and the resin panels cannot attach directly to the provided channel? There appears to be opportunity to.

We can size the steel angle (if still required) for the resin panel, but without loading from the storefront system vertical mullions we cannot proceed. The curtainwall engineer typically provides the reactions their attachment to the structure requires, but we could derive the loads ourselves with the storefront shop drawings if necessary.

theoryshaw commented 8 years ago

The steel angle illustrated there, is intended for the storefront only and not support the resin panels above.

It will not be a curtain wall assembly, it will be a stock storefront assembly. http://www.tubeliteinc.com/14000-series-storefront-framing/

I doubt we will get reactions from the supplier. I will ping, Jefferson Glass, into this conversation just to verify as well as to ask their ideal header condition for attachment.

Thanks.

theoryshaw commented 8 years ago

How about picking up another old one. :)

@KevinZinsmeister, can you provide a suggested approach to support these storefront headers?

Thanks, Ryan

KevinZinsmeister commented 8 years ago

Provide (2) #12 Grade 5 screws each side of each vertical mullion with a maximum vertical mullion spacing of 5'-0" oc.

theoryshaw commented 8 years ago

Hi Kevin, not sure i follow you. Looking for help sizing the steel angle (and fasteners) that is attached to the existing girt.

Was confused by your 'maximum vertical mullion spacing' comment.

Thanks, Ryan

KevinZinsmeister commented 8 years ago

The girt should have been designed to receive all of the wind load imposed on it already, so the steel angle has no function beyond providing an attachment point for the storefront system. I would suggest a 3/16" min thickness angle, but most any size will work. The load from the storefront system is concentrated in the vertical mullion and without knowing the layout of the system at all, I gave you the maximum spacing of the vertical mullions that would work with (4) #12 Grade 5 screws. The rest of the angle can be fastened to girt with #12 Grade 5 screws at 24" oc.

theoryshaw commented 8 years ago

Great, thanks for the clarification!