1950's slab contruction

[mauri10]

Has anyone worked with a 1950's slab system that calls for a 2" concrete on WWF lath and fireprofing?

 

[msquared48]

Not yet...

Out of curiosity, what is the span, and what were used as the joists? What was the building useage?

Mike McCann
MMC Engineering

http://mmcengineering.tripod.com

 

[mauri10]

SJ145 at 24-in OC

 

[msquared48]

I trust, due to the depth of the concrete slab, that the joists are not composite with the slab, unlike Hambro?

Mike McCann
MMC Engineering

http://mmcengineering.tripod.com

 

[dik]

V-rib form? Often used with 2 or 2-1/2" topping over owsj...

Dik

 

[mauri10]

what does it mean "owsj"?, what is a V-rib form like?
Later renovations indicate a 2" conc slab and corrugated deck instead of a a 2" concrete on WWF lath and fireprofing as existing slab

 

[Lutfi]

open web steel joist = "owsj"

Regards,
Lutfi

 

[msquared48]

On a 24" span, sounds like it might be formdeck with a concrete infill for the 2" depth.

Formdeck, at 1/2" to 1" deep, is not structural but for use as a permanent form only, and it is non-composite.

Mike McCann
MMC Engineering

http://mmcengineering.tripod.com