To specify axial behavior of a member
To specify a member as truss, cable, tension-only, or compression-only, use the following procedure.
- Select the members which will have the same axial behavior.
-
Select the
Axial Behavior tool in the
Edit group on the
Member ribbon tab.
-
Select the appropriate axial behavior from the drop-down list.
or
or
Standard - use this option to remove axial-only behavior (i.e., make the member cable of resisting bending and shear).
or
Truss
or
Cable
- a red turnbuckle for tension-only members
- a blue piston for compression-only members
- a "truss" or "cable" label for those member specifications
If a cable specification is selected, then the Cable Specifications dialog opens.
-
For cable members, provide any additional cable specifications as needed:
-
Select the Specification type:
Specification type Provide additional data Initial tension provide the Tension value and the end at which the initial tension is set Unstressed length provide the Unstressed length of the cable - For cable members used in an Advanced Cable Analysis, specify the Initial tension location.
- For cable members used in an Advanced Cable Analysis, specify any additional Self Weight Factors as needed.
- Click OK.
-
Select the Specification type:
You can edit the axial behavior of members
by selecting the Axial Behavior tool in the
Members group on the Spreadsheet
ribbon tab.
Note: The
Segment option for cable members
will be unchecked by default. Unchecking this
option prevents the physical member from being divided into analytical
segments.
Tip: To
restore a member to full axial behavior for tension and compression, select
Standard from the drop-down list.
You can edit the cable specifications by selecting the Cable tool in the Members group on the Spreadsheet ribbon tab.