What Calculation Model to Use for an RC Slab

[Μηχανικος]

Hi,

I am trying to model a reinforced concrete slab on a structure. i have already modelled all columns, walls and beams, now i need to add the slab.

My question is, which calculation model shall i use for this case?

Deck Slab, shell, slab- flexible diaphragm or slab rigid diaphragm?

Where can i find more information on these types of elements so i can understand the difference?

Regards

[AhmedZA]

http://forums.autodesk.com/t5/robot-structural-analysis/help-with-generating-mesh-for-rigid-diaphrag...

http://forums.autodesk.com/t5/robot-structural-analysis/difference-in-diaphragms/td-p/5541002

[Anonymous]

What did you go for in the end and have you found any info on the differences?

[Artur.Kosakowski]

If you want to calculate reinforcement you have to generate surface elements (mesh) and most likely you don't assume that the slab is indefinitely rigid for in-plane forces which you may want to include in the design of reinforcement (in addition to bending moments) as well -> shell

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[Anonymous]

thanks