OpenSees

OpenSees is an object-oriented open source framework developed by the Pacific Earthquake Engineering Research Center (PEER), this analysis package can simulate the response of structural and geotechnical systems. (http://opensees.berkeley.edu/)

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OpenSeesPL: 3D Lateral Pile-Ground Interaction

OpenSeesPL is a PC-based graphical pre- and post-processor (user-interface) for 3D ground and ground-structure response. Finite Element (FE) computations are conducted using OpenSees.

Please follow the steps below to download, install, and run OpenSeesPL.

Step 1: Download and Installation

1) Please visit http://soilquake.net/openseespl/ to obtain a copy of OpenSeesPL and for further instructions on installation.
2) Click on the titles UCSDSAND3 - Saturated, UCSDSAND3 - Dry, and/or UCSDCLAY to download an example file which can be run using OpenSeesPL.

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Model Performance

Below are some sample responses using the UCSD soil models. Click images to see full sized versions.

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UCSDSAND3 - Saturated (Note that UCSDSAND3 is PressureDependMultiYield03 in OpenSees):

Soil Column Model in OpenSees	Pore Pressure Time History
Shear Stress vs. Shear Strain	Shear Stress vs. Confinement

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UCSDSAND3 - Dry:

Soil Column Model in OpenSees

Shear Stress vs. Shear Strain

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UCSDCLAY (Note that UCSDCLAY is PressureIndependMultiYield in OpenSees):

Soil Column Model in OpenSees

Shear Stress vs. Shear Strain