Assign Custom Linear Support dialog

This dialog is used to generate supported nodes at even spacing along a selected member or reference line.

Opens when either:

the Custom tool is selected in the Supports group on the Member ribbon tab
the Line Support tool is selected in the Supports group on the Reference Line ribbon tab

Each support generated along the member or reference line will have the specified restraints or springs.

Setting

Description

Support type

Select the type of support at this node:

Restraints - fixed against translation or rotation in the selected degrees of freedom.
Springs - linear and rotational springs which can act in tension-only or compression-only, as well as in both reaction directions.

Segments

Type the number of segments along the member where supported nodes will be created. The physical member will be divided into this number of equal lengths.

Translation

Property	Value
X	Check to restrain translation along the global X direction.
Y	Check to restrain translation along the global Y direction.
Z	Check to restrain translation along the global Z direction.

Rotation

Property	Value
X	Check to restrain rotation about the global X axis.
Y	Check to restrain rotation about the global Y axis.
Z	Check to restrain rotation about the global Z axis.

Axial behavior

Select the

Complete - full axial behavior in both tension and compression
Compression only - support that resists compression only in the selected directions
Tension only - support that resists tension only in the selected directions

Note: A spring declared as tension-only or compression-only will carry axial forces only. It will not carry moments.

X axis

Check to apply axial behavior selection in the X direction.

Check to restrain translation along the global Y direction.

Z axis

Check to apply axial behavior selection in the Z direction.

Translation

Property	Value
X	Type the spring constant against translation in the global X direction.
Y	Type the spring constant against translation in the global Y direction.
Z	Type the spring constant against translation in the global Z direction.

Rotation

Property	Value
X	Type the spring constant against rotation about the global X axis.
Y	Type the spring constant against rotation about the global Y axis.
Z	Type the spring constant against rotation about the global Z axis.