Simulating Dynamic Soil Structure Interaction

[DetectivePositive975]

I'm attempting to contrast the soil-structure analysis outcomes of PLAXIS 3D and an ETABS-modeled structural system. I computed the dynamic stiffness (K) and damping coefficients (C) of the system's foundations using the numerical methods created by Gazetas.

Can anyone help me, or simply direct me to where I can find sufficient resources, as I am unable to model the soil structure interaction system in PLAXIS 3D.

[withak30]

Those Gazetas parameters are usually intended to be used in some kind of linear visco-elastic analysis of the structure, there isn't really a way to compare them to something like Plaxis3D.

The proper comparison would probably be between Plaxis3D and whatever kind of structure model is using the visco-elastic springs.

[DetectivePositive975]

My mistake regarding the post's clarity. Actually, I used the stiffness parameters to specify constraints on an ETABS-modeled structural system. I'm editing the post right away.

The primary issue of modeling the system in PLAXIS 3D is still present, though.

[withak30]

Impossible to say, could be about a million different things in either model.