Composite floors span direction and force transfer.

[Anonymous]

Hi

I am analyzing a composite slab (concrete + metal deck + steel beams) of the shape as seen in the attachment. This is a one way slab, and the deck is oriented to be perpendicular to framing. How do I approach analysis of this in Robot (RSA)? 

1. Make two separate floor panels - If yes, how do I make sure that the lateral forces are being transferred correctly, how do I link the two panels to act as a single rigid diaphragm?

2. Any other suggestions

This is a very common scenario, but this is my first time using RSA and I can't seem to find any article on this. 

Any help is appreciated. 

Thank you.

[Krzysztof_Wasik]

Hi @Anonymous 

Define two separate panels.

Use automatic direction while orthotropy definition (it adjust local x orthotropy direction to local panel x axis direction)

Then define panel local x axis direction as required using Geometry >Properties>Local Panel Direction