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Hole in the floor between upper and lower level

Amandaj@lux

is there a technical word or phrase for the cutout in the floor between the upper and lower levels of a mall?

 
Mar 21, 18 11:26 am
Non Sequitur

Opening

Mar 21, 18 12:37 pm  · 
 · 
JLC-1

open to below

Mar 21, 18 12:38 pm  · 
 · 
citizen

^ Both of these.  

Though I have to say, "Hole in the Floor" has a certain ring to it...

Mar 21, 18 12:45 pm  · 
 · 
Volunteer

Atrium?

Mar 21, 18 1:00 pm  · 
 · 
Red Dog

Do not call it an atrium if it only connects two levels. If it is a true atrium as defined by code, you will need to meet a whole slew of requirements that otherwise do not apply. Floor opening is pretty straight forward.

Mar 22, 18 11:55 am  · 
 · 
Volunteer

I know of no reference that says an atrium has to be greater than two stories.

Mar 22, 18 3:07 pm  · 
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Red Dog

You're right it doesn't, but if you are only connecting 2 floors there is an exception in section 404 of the IBC that you do not need to have a smoke control system. By avoiding calling it a atrium in the first place, it might avoid lengthy discussions with the plan reviewer.

Mar 22, 18 3:21 pm  · 
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randomised

Yeah, let's not call an atrium an atrium because of annoying safety requirements like smoke control or something, just hold your breath while you make a run/jump towards safety, godspeed!

Mar 22, 18 3:48 pm  · 
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tduds

Red Dog is correct.

Mar 22, 18 4:03 pm  · 
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joseffischer

There are a number of code/language specific ways to handle and call out floor openings. I agree with others, figure out how you're handling it by code, and then call it that.

Mar 27, 18 1:54 pm  · 
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randomised

Balloon distribution zone or Christmas tree display area.

Mar 21, 18 1:42 pm  · 
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SneakyPete

OSHA Bait. 

Mar 21, 18 1:51 pm  · 
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ArchNyen

wasted rental area

Mar 21, 18 10:56 pm  · 
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apscoradiales

lol

Nov 27, 20 12:15 pm  · 
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A Gordon Matta-Clark?

Mar 21, 18 11:58 pm  · 
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Almosthip7

inter connected floor space

Mar 22, 18 10:46 am  · 
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accesskb

light well

Mar 22, 18 6:23 pm  · 
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Quentin

Shaft

Mar 27, 18 2:41 pm  · 
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apscoradiales

"open below", "open above"

Nov 26, 20 1:14 pm  · 
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