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Meshing Wall/Slab Plates

Meshing Wall/Slab Plates

Meshing Wall/Slab Plates

(OP)
I have created a 3D model of a concrete structure and used plates for walls and slabs. I have had trouble when meshing a wall that is connected to a slab I already meshed. Using the auto mesh tool, Risa does not recognize the existing joints along the common edge and I have to go in and manually adjust joint coordinates so all of the plates are connected. Any advice?

Thanks

RE: Meshing Wall/Slab Plates

Don't use the connection details used in Haiti.

Mike McCann
MMC Engineering
Motto:  KISS
Motivation:  Don't ask

RE: Meshing Wall/Slab Plates

scanf,
You have to simply take care as you develop your model to input the meshing to correlate with the previous mesh.  This usually means that you have to keep track of the geometrical coordinates of the mesh panels and perhaps input the sections in smaller generations.  Then fill in the gaps.

Also, you can use copy or copy-rotate features in RISA to sometimes duplicate mesh panels that have the same nodal rhythm.




 

RE: Meshing Wall/Slab Plates

(OP)
Thanks msquared48, that's helpful.

Thanks JAE. What sort of mesh size would you recommend? I realized that the plate forces in the spreadsheet are the average values for the plate. So if my plates are large it could be significantly less than the max. at the plate edge.

RE: Meshing Wall/Slab Plates

You can always coordinate your mesh sizes and then later come back and reduce the element sizes in critical stress areas.
 

RE: Meshing Wall/Slab Plates

And do not forget that you dan pre-draw with 3D face entities in autocad your plates and import them as a DXF saved file. Normally the process goes seamless and without problem.

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