# 4.8.1.3. sp command¶

sp(nodeTag, dof, dofValue)

This command is used to construct a single-point constraint object and add it to the enclosing LoadPattern.

 nodeTag (int) tag of node to which load is applied. dof (int) the degree-of-freedom at the node to which constraint is applied (1 through ndf) dofValue (float) reference constraint value.

Note

The dofValue is a reference value, it is the time series that provides the load factor. The load factor times the reference value is the constraint that is actually applied to the node.