How to model with considering SSI.I perform analysis with considering Fixed base condition.now i want to analysis my model considering SSI effect on it.so for this i calculate two spring constant value according to theory.one is TRANSLATIONAL Spring and outher one is EQUIVALENT Rotational Spring about Horizontal axes.Those two are basically lateral and rocking stiffness of foundation.The Values are 301672 kN/m and 5577927 kNm/rad.Now please tell me how to implement it into my model and analysis it...Please Help Me Out.....
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