ARE CDS Vignette

Building Section Vignette and Multiple Choice

ARE CDS Vignette

Postby Tortilla » Sat Feb 03, 2018 3:57 pm

I'm looking or clarification on the maximum duct size issue. My understanding is that my plenum needs to be drawn to include the maximum duct size in the "area', which interpret to mean that particular floor and side of the building? in other words, the maximum duct size for all parts of that floor where ceiling heights align and ducts are continuous.
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Re: ARE CDS Vignette

Postby Coach » Sat Feb 03, 2018 10:13 pm

You don't necessarily use maximum duct size.

Plenum is sized for the largest joist/duct combination. That combination might or might not include the largest joist or duct.

For this purpose, an area is all space on the same floor with the same ceiling height.

viewtopic.php?f=10&t=51542&hilit=joist%2Fduct
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Re: ARE CDS Vignette

Postby Tortilla » Sun Apr 29, 2018 8:05 pm

Hi Coach,

Would you mid taking a look at this practice exam -- given our conversation about plenum and joist - duct combination?

Plenum depth:

- 32" floor 1 remaining area (outside lab)
- 24" floor 2 lab
- 32 floor 3 remaining area (outside lab)
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Re: ARE CDS Vignette

Postby Tortilla » Sun Apr 29, 2018 8:07 pm

And 2 more images...
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Re: ARE CDS Vignette

Postby Coach » Sun Apr 29, 2018 8:53 pm

To really get a handle on the joist/duct combination, do the 3.1 vignette.
It looks like your light spaces are inadequate.
Rated walls go from top of slab to bottom of deck.
Break slab at bearing walls.
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