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Structural Interface
The Structural Interface option in Phase2 allows you to model support which has a sliding interface (joint) on BOTH sides of the support element. This can be used to model:
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pile walls
geosynthetics (e.g. geogrids, geotextiles, etc)
other support types with a sliding interface on both sides
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Schematically, a Structural Interface consists of a support element sandwiched in-between two joint elements, as shown below.
Schematic representation of Structural Interface components
In terms of modeling, a Structural Interface is another boundary type in Phase2 and is added in the same way as other boundaries (e.g. material or stage boundaries).
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The properties of the support component of a Structural Interface boundary
are defined in the Define Liners dialog.
The properties of the joint components are defined in the Define Joint
dialog.
The overall properties (joint/liner/joint combination) are defined with the
Define Structural Interface dialog, shown below.
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Define Structural Interface dialog
After the analysis has been computed, the components of a Structural Interface boundary can be expanded and displayed as shown in the following figures. The individual components (joint/liner/joint) can be selected, and you can view analysis results for each component (e.g. liner and joint stresses, yielding, etc).
Sheet pile walls modeled as Structural Interface
Geogrid modeled as Structural Interface
NOTE: piles and geosynthetics can also be modeled as simple liners, if you do not wish to model the interface (joint) component. See the Liner Support page for more information.
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