Crushing of Composite Metal Deck - 2
Crushing of Composite Metal Deck - 2
(OP)
There was thread regarding this some time ago here:
http://www.eng-tips.com/viewthread.cfm?qid=17976 LINK
This doesn't quite satisfy me (sorry Ron). It seems that if there was post that fell between deck flutes there would be an issue. Is there a calculation or some sort of testing that was done that could address this?
http://www.eng-tips.com/viewthread.cfm?qid=17976 LINK
This doesn't quite satisfy me (sorry Ron). It seems that if there was post that fell between deck flutes there would be an issue. Is there a calculation or some sort of testing that was done that could address this?






RE: Crushing of Composite Metal Deck - 2
I do believe the steel deck guys publish web crippling strength of the deck, might be a place to start.
RE: Crushing of Composite Metal Deck - 2
- A conservative approach would be to check the deck for punching shear under the load. If that passes, then you know that your load could make it over to the ribs successfully. After that, it's just bearing stress. I imagine that this would be quite conservative however.
- In reality, I suspect that an arching mechanism develops to move the load laterally to the ribs. That would have a ton of capacity. The trouble is that arch would require a tie. And a tie made out of sheet steel and puddle welds/pins is a pretty tough thing to quantify.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Crushing of Composite Metal Deck - 2
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Crushing of Composite Metal Deck - 2
RE: Crushing of Composite Metal Deck - 2
RE: Crushing of Composite Metal Deck - 2
With how popular Cold Formed Steel framing with podium has become (atleast near me) I'm surprised there isn't some information out there on this.
There are a couple of work arounds:
1. Blocking as Kootk mentioned
2. Stop the deck at the beam flange and pour solid concrete above the beam.
3. At a post you could weld a short HSS on to the beam with a top plate that is flush with the floor.
Still I'd like to have something to understand the strength of the composite deck...
EIT
www.HowToEngineer.com
RE: Crushing of Composite Metal Deck - 2
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.