Lightweight steel framing system

Question

Lightweight steel framing system

ick2 (Structural)

(OP)

22 May 03 23:14

I will use lightweight joist construction for a residencial project. Since my joists are 12" o.c. I am using a form deck UFS 9/16" thick and 2 1/2" slab. This gives a capacity of 480psf for a single span. However i have seen residential construction where for the same application people are using 1 1/2" deck plus 4" slab. Is there a reason for this?

whyun (Structural) · Answer 1 · 2003-05-23 14:14:31

RE: Lightweight steel framing system

whyun (Structural) 23 May 03 14:14

Fire rating?

Lutfi (Structural) · Answer 2 · 2003-05-24 15:33:45

Other reasons could be that the supports are spaced farther apart (more than 12 inches on center). Another possiblity, is the required floor loading is higher.

emceditor (Structural) · Answer 3 · 2003-05-26 15:42:42

Floor vibrations are quite a bit less with the higher mass 4" slab thickness.

ick2 (Structural) · Answer 4 · 2003-05-31 23:03:32

RE: Lightweight steel framing system

ick2 (Structural)

(OP)

31 May 03 23:03

thanks all for your replies

Come Join Us!

Posting Guidelines

Lightweight steel framing system