Risa-3D Moving Loads on a Plates
Risa-3D Moving Loads on a Plates
(OP)
I have a large top slab of a large 75'x15' box that I am trying to apply a HS-25 loading using the moving pattern loads. But apparently it requires a member underneath the pattern to follow. Is there a way to apply them to nodes or plates? or maybe a member have zero (or very little) strength. Tired that but unsure if the forces are getting transfered to the plates since the members still give forces in the results. any advise?





RE: Risa-3D Moving Loads on a Plates
The member stiffness should be set very small along with its modulus of elasticity E. Use a "general" material property that you invent.
After the analysis check to see what the sheas and moments in the beam are - should be small or negligent.
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RE: Risa-3D Moving Loads on a Plates
RE: Risa-3D Moving Loads on a Plates
You can check to see if the member picks up the internal plate joints by using the Color Coded plot option for the members and setting the basis for the color coding to "phys segment". That means wherever the member picks up an interior joint, you will see a color change.
Note: If the member isn't picking up your plate element joints, then you might have to move some of the joints so that they line up with the member or re-mesh your plates. Whatever you need to do to get those plate joints to fall in-line with the member.
RE: Risa-3D Moving Loads on a Plates
Check out Eng-Tips Forum's Policies here:
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RE: Risa-3D Moving Loads on a Plates
RE: Risa-3D Moving Loads on a Plates
Check out Eng-Tips Forum's Policies here:
FAQ731-376: Eng-Tips.com Forum Policies
RE: Risa-3D Moving Loads on a Plates