Hi,
I have created a structure and loaded it and analyzed it only to find out that the bending moment in the slabs are coming out weird.
From what I studied, We learned that the bending moment at supports (in the case of slabs, the beams) must be positive? The diagram seems flipped?
Im very new to FEA so any clarification on this topic would be very much appreciated.
Thankyou.
Looks good to me . It is just a convention. Set the panel cuts in diagrams tab to "normal" ,and in a 3d view you will get the diagrams you expect.
Rafael Medeiros
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Hi,
I'm afraid sign convention might not be the problem here.
As you can see from the map below, the areas where columns are situated has a hogging moment just as expected, but the areas for which the beam supports the slabs, comes under sagging moments.
you can access the file in the attachment.
Thankyou.
Sorry for the delay.
1- Your slabs are with aluminum material . Change them to concrete
2- Your calculation model is "Deck slab ( one way)" with simplified method of load distribution ,just like claddings. It will not give you slab reliable results (it should be blocked by the program) . To have slab trustable results you got to have "Shell" as calculation model type. Doing that you will have the expected results .
Rafael Medeiros
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