For a soil column subjected to a sinusoidal base shear, How can one impose lateral periodic boundary condition i.e. constraining opposite nodes on lateral boundaries to undergo the same displacement. This is similar to a soil column in a laminar shake-box.
Mustafa Jafari
Periodic boundary conditions are available in Plaxis for lateral boundardies in dynamic calculations. They are referred to as tied degrees of freedom and are often used in site response analysis.
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Josif Josifovski
The dynamic boundary condition in PLX are described by viscous-damper boundaries which are of approximate type.!
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