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This command is used to construct homogeneous single-point boundary constraints.
fix $nodeTag (ndf $ConstrValues)
$nodeTag |
integer tag identifying the node to be constrained |
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$ConstrValues |
constraint type (0 or 1). ndf values are specified, corresponding to the ndf degrees-of-freedom. The two constraint types are: |
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0 |
unconstrained |
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1 |
constrained |
EXAMPLE:
fix 1 1 1 1 1 1 1; # node 1: fully fixed
fix 2 0 1 0 0 1 0 -mass 2.5 0.0 2.5 0.0 0.0 0.0; # node 2: restrain axial elongation and torsion, translational masses in x-z plane only
For an example of this command, refer to the Model Building Example
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