Soil-Pile Interaction Simulation in OpenSees

[ArminTabandeh]

Hi everybody,

I have modeled an offshore platform with penetrated pile in soft clayey soil column. For modeling soil-pile-structure interaction, p-y elements are deployed along dispBeamColumn pile elements. The imposed motions are obtained from nonlinear site response analysis in DEEPSOIL (1D site response analysis program). Now I would be pleased if you could let me know about the validity of the following options for evaluation of seismic behavior of aforementioned system,

1. Employing nonlinear displacement time history obtained from DEEPSOIL at the end p-y elements.

2. Employing linear displacement time history obtained from acceleration time history by means of solving dual time integration.

3. Applying nonlinear displacement time history obtained from DEEPSOIL directly at the pile nodes w/o considering interface elements (p-y).

4. Assigning mass properties to the dispBeamColumn elements of pile and then imposing acceleration time history.

I assume these preferences are sufficient for this problem. If there are further options that work more appropriately, what are those alternative techniques in OpenSees?

Armin.

[Agenrikal]

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