[Lerftest] LERF Gallery Raised Floor

[Joseph Gubeli]

The image to go with the last email.



Cheers, Joe







From: Lerftest [mailto:lerftest-bounces at jlab.org] On Behalf Of Joseph
Gubeli
Sent: Tuesday, January 30, 2018 12:52 PM
To: lerftest at jlab.org
Subject: Re: [Lerftest] LERF Gallery Raised Floor



Please ignore the L bracket method to prevent grating slip. A better
approach would be to add rods to the bottom of the grating that would fit
into oversized hole in the top of the channel. The connection to the floor
would be just through the bottom flange. This would allow for a smooth
channel top during cable installation. I’ll send out an image later.



Cheers, Joe



From: Lerftest [mailto:lerftest-bounces at jlab.org] On Behalf Of Joseph
Gubeli
Sent: Tuesday, January 30, 2018 11:05 AM
To: lerftest at jlab.org <mailto:lerftest at jlab.org>
Subject: [Lerftest] LERF Gallery Raised Floor



The images below are, in general, what I imaging the raised floor will
look like behind the SSAs. The grating is 1” x 3/16” (18” x ~34”) aluminum
with a safe load of 632 lbs per square foot for a 24” span, our
unsupported span is 15”. The channel is 6061 aluminum 4” x 1.58” x 0.18”
anchored to the floor with ¼-20 bolts spaced 18” apart. The “L” brackets
will keep the grating from sliding much. More of this raised floor could
be added to extend to penetrations. Let me know if there are a questions
or comments.



Thanks, Joe



Joseph F. Gubeli

Jefferson Lab.

12000 Jefferson Ave.

Newport News, VA 23606

(757) 269-7862 (Office)

(757) 344-4159 (Cell)

 <mailto:gubeli at jlab.org> gubeli at jlab.org







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