Question
How do I create a User Section?
Answer
It can be created in the User Section main panel of Base Mode and Library Mode.
User Section is shape information about the section and is used to shape the object through the General Member and Path Linked function.
(Technical document : Why Define User Section? )
In order to create a User Section, work must be done in User Section Mode.
User Section Mode can be entered by clicking the User Section main panel of the Base Tab within each Mode.
How to check User Section
In the case of the created User Section, you can click on the object or enter through the Works Tree.
User Section is a structure that is saved depending on each library. User Sections created in a specific library are not checked in other libraries or in Base Mode.
You can check it only in the Works Tree inside the library.
To use the same User Section in other libraries, right-click the User Section in the Works Tree and use it through the Export / Import process.
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| Figure 1. Enter the User Section by selecting an object | Figure 2. Entering User Section using Works Tree |
Process of Creating User Section
To create a user section, click the Section icon in User Section Mode to create a face, then click the Add button to create a section.
One User Section can consist of one or multiple Faces.
User Section is generally composed of one face, but depending on the object, multiple faces may be required.
| Figure 3. Cross section of a barrier using 2 faces | Figure 4. Deck Slab Cross Section Using 3 Faces |
Figure 3. It is also possible to configure the separated left and right protective walls as a single section,
As shown in Figure 4, it is also possible to configure multiple faces as needed by considering the vertex matching of the section changing part.
Below, I will explain the difference between the case in which the Deck Slab User Section shown in Figure 4 consists of three faces and the case of one face.
| Figure 5. When Sections are Constructed with Multiple Faces |
Figure 6. When a Section is composed of one Face |
In Figure 5 above, the Curve Library was created using the user section with 3 faces for the deck slab section.
Figure 6 is an example of creating a Curve Library by composing a User Section with a single face.
In the case of Figure 5, the starting and ending sections of the side section have 3 faces and 12 vertices, so the shape of the side section is well implemented without any additional setting.
On the other hand, in the case of Figure 6, since the starting point of the edge has 8 vertices and the end point of the edge has 4 vertices, it is automatically matched by the internal rule.
As in the example above, if the vertex of the change section is different, it can be used to implement the desired shape through appropriate face division.
How to Create a User Section
There are 4 ways to create a Section in User Section.
Figure 7. Direct Draw
By Select creates a closed surface as a Section by selecting the created Line.
Select the line element created using the Sketch function to create a section (Fig. 8-1)
Figure 8-1. By Select using the Sketch functiont
As shown in Figure 9., it is also possible to compose a cross section by selecting the lines of the CAD file input using the File Menu - Import - DWG/DXF function (Figure 8-2).
Figure 8-2. By Select with DWG Import
Figure 9. Insert Template Shape
| Figure 10. Preview vs Guide | |
Select the shape of the desired section from Section Type and input the desired number in the input window created at the bottom.
The shape of the section to be created through the input value can be checked in two forms (Figure 10), Preview and Guide at the bottom.
Click the Insert button to set the location, and click the Add button to register the face to create the User Section.
A total of 24 templates provided by CIM are as follows.
This is the same as the Section Type provided when creating Concrete and Steel Member.
Figure 11. User Section Template
1. Input cross-sectional coordinate information using vertex table
The By Coordinate method creates a section based on a vertex and directly inputs coordinates arranged in a table form.
Create a section by pasting the coordinate information of the section you want to configure into the coordinates of the vertex table.
At this point, it is important to note that the order of coordinates should be arranged in a counterclockwise direction from the starting point of the section reference.
L in the input window stands for Loop and CW stands for Clock Wise.
Loop
: Constructs a new closed section from the checked vertex. (total number of faces = number of loops + 1)
Figure 12. Loop
Clock Wise
: CW determines the direction of curve R generation. If CW is checked, the surface is created in a
clockwise direction.
(If unchecked, the curve is generated counterclockwise)
Figure 13. Clock Wise
2. Fillet/Chamfer Input
Each edge of the entered section can be modified through the Fillet and Chamfer tables.
| Figure 14. Fillet | Figure 15. Chamfer |