Hi,
I am sending again a question that I posted in another thread
communities.bentley.com/.../415756
Because I think I didn't described the issue well enough
I modeled a steel structure supported by a PLATE MAT foundation using Option Y and the subgrade module.
I made dynamic analysis (modal analysis), and I found a contradiction when looking at Base Pressure results, specifically
some nodes show Negative base pressure values and the corresponding node displacements (Y) show negative values,
in the same way the Node Reactions (Y) show negative values, so I do not understand why this is happening.
Notice that I am no using Y COMPRESSION option but just Y for the Mat Plate
I am uploading the .std file using the secure uploading option that this site offers, however if there is another
fast way to get help do not hesitate to give me advice.
Many thanks in advance for any help on this becuase I urgently need to find a solution for this,
Best regards,