Building slab with TroughDek (Australia)

[Nmuggers]

Hi All,

Does anyone have knowledge in the use of Troughdek within an Australian building slab?

I am looking at a section of a drawing for a slab that has 3/300 - T20/F20 topped with 2.5" concrete and reinforced with 1 layer of AS N605 Fabric 1" from top

Am I right in saying that the A.S N 605 Fabric is steel reinforcement mesh with 0.5" bars at 6" centres?

I am currently completing load ratings for the slab but am unsure how to calculate the load capacity of the sleep to include the Troughdek, I have also attached a screenshot from the drawing for your reference.

Any help would be greatly appreciated.

Regards,
Nick

 

[hokie66]

This must be quite old. I haven't encountered "Troughdek".

Had to look up the fabric, it is 5mm bars at 6" centres according to the reference linked. Mixing of units can still cause problems.

http://www.sria.com.au/pdfs/CIA Concrete 2017 Historical Reinforcement FullPaper_185_ScottMunter.pdf

 

[rapt]

Never heard of it. If it is in Imperial units it is pre 1974. In those days metal deck was assumed to have very limited bond based on a service stress design if I remember correctly.