Direction
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Select the direction in which the foundation reaction acts. If X or Y
or Z is selected, then a spring supports are used in that direction plus
3 other directions receive a fixed support. For example, if Y is
selected, then FY is supported by a spring; FX and FZ and MY are fixed
supports; and MX and MZ are free.
If X-only, Y-only, or Z-only
are selected then only a spring support in that direction is
generated.
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Subgrade Modulus
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Type the stiffness used for the soil on which the foundation is
bearing. This term is measured and expressed as load intensity per unit of
displacement. |
Axial Behavior
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Select the axial behavior along the
selected
Direction:
- Complete - the
mat foundation is capable of resisting both positive and negative force along
the selected
Direction
- Compression
Only - the mat foundation is capable of only resisting compressive
force (i.e., towards the joint) along the selected
Direction (use this option for
foundations which cannot resist uplift)
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