Sir,
I modelled the raft foundation using plate element and for soil structure interaction i followed impedance approach (as subgrade modulus of soil was not known.)
I.e Soil here is modeled as spring and dashpot , then the corresponding stiffness and damping values are specified in the model.
Now my question how to get the base pressure on the plate ,
when i check it in the result it is showing as zero.
This value is required for me to check with the Safe bearing capacity value of soil.
Pls. help me