Sp

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Sp#

This command is used to define a single-point constraint that scales under a load pattern.

Model.sp(node, dof, value, pattern)#

Constrain the dof component of the solution at node to value in pattern.

Parameters:

  • node (integer) – tag of node to which constraint is applied

  • dof (integer) – the degree-of-freedom at the node to which constraint is applied (1 through Model.ndf)

  • value (integer) – reference constraint value

  • pattern (integer) – tag of the Plain load pattern.

Note

The value 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.

Examples#

  1. Tcl Code

    pattern Plain 1 Linear {
    sp 1 1 0
    sp 1 2 0
    sp 1 3 0
}

  2. Python Code

    model.pattern('Plain', 1, 'Linear')
model.sp(1, 1, 0, pattern=1)
model.sp(1, 2, 0, pattern=1)
model.sp(1, 3, 0, pattern=1)

Code Developed by: fmk

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