structure link attach command

Syntax

structure link attach keyword ... <range>

Primary keywords:

x    y    z    rotation-x    rotation-y    rotation-z

Set attachment conditions for the specified link directions. The current attachment condition will be replaced by the condition specified here. Conditions are specified in keyword pairs, the first (keyword) being the degree-of-freedom and the second ([linkattachoptions]) being the type of condition to use. The following keywords are available to specify the degree-of-freedom:

x [linkattachoptions]

translational x-direction, also degree-of-freedom 1

y [linkattachoptions]

translational y-direction, also degree-of-freedom 2

z [linkattachoptions]

translational z-direction, also degree-of-freedom 3

rotation-x [linkattachoptions]

rotational x-direction, also degree-of-freedom 4

rotation-y [linkattachoptions]

rotational y-direction, also degree-of-freedom 5

rotation-z [linkattachoptions]

rotational z-direction, also degree-of-freedom 6

Keyword Block

The following keywords may be applied to the structure link attach keywords rotation-x, rotation-y, rotation-z, x, y and z.

free

free

linear

deformable linear spring

normal-yield

deformable normal-yield spring

pile-yield

pile yield spring. This is only available in the x or y translational degrees-of-freedom, and the dependent model is automatically installed in y or z, respectively.

rigid

rigid

shear-yield

shear yield deformable spring (only available in translational degrees-of-freedom)