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Burgon87
Posts: 45
Registered: ‎03-21-2012

Composite Floor

671 Views, 3 Replies
05-08-2012 04:51 AM

I am modelling a composite floor with steel beams. The beams are deflecting largly under horizontal loading from wind load. I am trying to restrain the beams with the floor slab however, the beams do not seem to recognise the slab as a restraint. I have fixed the upper flange of the beam, and therefore composite action should be occuring...it appears not to be. I have a one-way spanning slab, but how should I model it to make it work? The beams are more than sufficient to support the load yet deflection is large. Do I model the slab as a shell?

 

Please can you help.

 

Many Thanks.

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Artur.Kosakowski
Posts: 4,750
Registered: ‎12-17-2010

Re: Composite Floor

05-08-2012 05:18 AM in reply to: Burgon87

To include the horizontal stiffness of the slab you either have to mesh it or generate rigid links with the triangular and trapezoidal load distribution method. If you want to include the vertical stiffness of the slab then you have to mesh the panels.

 

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Artur Kosakowski
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Active Member
edwin
Posts: 6
Registered: ‎04-25-2011

Re: Composite Floor

06-17-2013 12:08 PM in reply to: Artur.Kosakowski
Artur, Is there a way you could provide a sample file showing what you mean by generating rigid links w/ the trapezoidal load distribution method?
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Product Support
Artur.Kosakowski
Posts: 4,750
Registered: ‎12-17-2010

Re: Composite Floor

06-18-2013 12:17 AM in reply to: edwin
Artur, Is there a way you could provide a sample file showing what you mean by generating rigid links w/ the trapezoidal load distribution method?

Check the panel calculation model 1 assigned to panel 14.

 

panel calculation model 6.PNG

 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.



Artur Kosakowski
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