Summary

Create an analysis line to use for 1D member analysis.

How to Run

Ribbon Menu > [Model] Tab > [Analysis] Group > Analysis Line

Explanation

Single Element

Create an Analysis Line of Single Element Type.

< Assembly Unit Mode> <Base Mode>

[Tab] Create

[Analysis Line Type]
Select the type of Analysis Line.
- Single Element : Creates an analysis line that is one element.
- Multiple Elements : Creates an Analysis Line that is split into multiple elements.

If Single Element is selected, the user will need to set the following options
- Sectioning Offset
- Tapered Section
If Multiple Elements is selected, the user will need to set the options below.
- Sectioning Points
- Tapered Section Group

[Constraint Space]
- Constraint Space :Select the type of Space to create the Analysis Line.
  - Connected
  - Dependent
  - Independent
- Constraint Space List :Select the Space to create the Analysis Line.

Constraint Space is only valid in Assembly Unit. Not available in Point/Curve Library and Base Mode.

[Constraint Path]
- Constaint Path : Select the type of Path that will be the Analysis Line.
  - Defalut Constraint Path
  - Main Constraint Path
- Select Constraint Path : Select the path that will be the Analysis Line.

Constraint Path is only valid in Curve Library and Assembly Unit. It is not available in Point Library and Base Mode.

[Define Path]
- Draw Method : Select the drawing method for the Analysis Line
  - By Draw : Draw the line directly.
  - By Select : Select an edge.
    - Multiple selections are possible,
    - Reverse Direction option to change the direction.

Define Path is only valid in Point Library and Base Mode. It is not available in the Curve Library and Assembly Unit.

Each mode has a different way of creating analysis lines.
- Point Library and Base Mode
  - Draw a line directly or select an edge to create an Analysis Line.
- Curve Library
  - Select Constraint Path to create an Analysis Line.
- Assembly Unit
  - Constraint Space, and Constraint Path to create an Analysis Line.

[Select Target]
Select the target for the Analysis Line.
- Target Type : Select the material type of the target. You can choose between Concrete and Steel. Depending on the Target Type, the members that can be selected as Property Reference and Target are limited.
  - Property Reference: Select a member to refer to the material property of the Analysis Line.
  - Select Member : Select the target member to use when acquiring the cross section of the Analysis Line. Multiple members can be selected.
  - Select Stiffener : : Select a longitudinal stiffener to use when acquiring the cross section of the Analysis Line. Multiple stiffeners can be selected.

The material type determines what you can select.
- If Concrete is selected, only Concrete members can be selected.
- If you select Steel, you can select Steel members and longitudinal stiffeners.

[Tapered Section]
Sets whether to create the analysis line as a tapered section group.
- Off : Creates an analysis line with a single section.
- On : Create Analysis Line with Tapered Section.

If you created an analysis line for a member as shown below.
you created an edge in advance to create a 1D analysis line in a straight direction, but there was a discontinuity in the cross section (a mismatch in the number of vertices), so you separated the edge at that location.

For Tapered Section-On,
Generates a 1D element by placing the section taken from the Start Plane section acquisition point of the analysis line at the viewpoint of the analysis line and the section taken from the End Plane section acquisition point at the endpoint of the analysis line.

For Tapered Section-Off,
Generates a 1D element by placing the section acquired at the Start Plane section acquisition point of the Analysis Line onto the Analysis Line unit section.

[Sectioning Boundary]
Select whether to limit the cross-section acquisition area of the analysis line to a finite area with input from the user.
- Off : Acquires a cross section in an infinite plane.
- On : Acquires a cross section within the direction and area size set by the user.

For Sectioining Boudnary-On, the following options must be set.
- Y-Direction of Boundary
- Boundary Area

[Sectioning Offset]
Set the cross-section acquisition location. Enter the offset distance from the start of the Analysis Line Path.

[Y-Direction of Boundary]
Sets the reference axis for setting the region. The reference axis will be in the Width direction.
[Boundary Area]
Set the size of the region. The region is limited to a rectangle.
- Width : Enter the length in the direction of the user-set Y-Direction of Boundary.
- Height : Enter the length in the direction of the user-set Z-Direction of Boundary.
[Preview]
Provides a preview of the created analysis line and the shape that will be created in Analysis Mode.

Multiple Element

Create an Analysis Line of Multiple Element Type.

< Assembly Unit Mode> <Base Mode>

[Tab] Create

[Analysis Line Type]

[Constraint Space]

[Constraint Path]

[Define Path]
Draw Method : Select the drawing method for the Analysis Line.
- By Draw : Draw the line directly. Polyline is supported to enable continuous drawing.
- By Select : Select an edge.
  - The Reverse Direction option allows you to change the direction
  - The Edge Auto-Tracking option automatically finds a single path by exploring the edges connected to the selected edge.

[Select Target]
Select the target for the Analysis Line.
- Target Type : Select the material type of the target. You can choose between Concrete and Steel. Depending on the Target Type, the members that can be selected as Property Reference and Target are limited.
  - Property Reference: Select a member to refer to the material property of the Analysis Line.
  - Select Member : Select the target member to use when acquiring the cross section of the Analysis Line. Multiple members can be selected.
  - Select Stiffener : : Select a longitudinal stiffener to use when acquiring the cross section of the Analysis Line. Multiple stiffeners can be selected.

[Sectioning Points]
Sets the sectioning points for the Analysis Line.
- Automatic : Automatically sets Sectioning Points according to the rule that projects the discontinuity points of all edges of the Sectioning Target onto the Path and filters them by Sectioning Tolerance.
- Manual : Runs the dialog for setting sectioning points.
- Elements : Outputs the number of sections (elements) divided by the Sectioning Points Setting.
  - On the Sectioning Points Dialog, the discontinuous position of the polyline is automatically registered as a DP (Discontinuous Point).

[Tapered Section Group]
Sets whether to create tapered sections (elements) of the Analysis Line as a Tapered Section Group when linking the analysis.
- Off : Create each element as a single section.
- On :Create each element as a Tapered Section Group.
[Sectioning Boundary]
Select whether to limit the cross-section acquisition area of the analysis line to a finite area with input from the user.
- Off : Acquires a cross section in an infinite plane.
- On : Acquires a cross section within the direction and area size set by the user.

[Y-Direction of Boundary]
Sets the reference axis for setting the region. The reference axis will be in the Width direction.
[Boundary Area]
Set the size of the region. The region is limited to a rectangle.
- Width : Enter the length in the direction of the user-set Y-Direction of Boundary.
- Height : Enter the length in the direction of the user-set Z-Direction of Boundary.
[Sectioning Tolerance]
Enter the tolerance when Sectioning Points is set to Automatic.
[Preview]
Provides a preview of the created analysis line and the shape that will be created in Analysis Mode.

Sectioning Points Setting of Multiple Element

Set Sectioning Points of Multiple Elements Type.

[Tab] Sectioning Points

[Setting Type]
Select the setting method for Sectioning Points.
- Direct Setting : By adding a table row (entering the number), the user directly sets the location of the section extraction point.
- Arrangement : Set the section extraction point through the array value.

[Direct Setting]
- Number of Row : Enter the number of rows to add.
[Arrangement]
- Arrangement : Select an arrangement type.
- Value : Enter the array value.

[Sectioning Points Table]
- Add : Add a table row with Number of Row or Arrangement value.
- Delete : Delete the selected row. The first row and the last row cannot be deleted.
- Sectioning Points Table : Enter sectioning points and location storage methods in the form of a table.
  - Name : Enter the name of the segment.
  - Length : Enter the length of the Sectioning Point from the starting point.
  - Alignment : Set the calculation method of the Sectioning Point location according to the length change. By Distance method and By Ratio method are provided.
  - Reference Point : Sets the reference point for By Distance setting.
  - Ratio : Enter the Ratio to save the location of the reference point for Reference Point-User Defined settings.

Reference Materials

Analysis Line Property