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2.2 Nodes and Members

In the second window, you can select the nodes you want to analyze. In addition, you can define the parameters of the members connected to the nodes.

Image 2.10 Window 1.2 Nodes and Members
Definition Type

You can import nodes using the Import from structural model option. The geometric parameters such as the number and properties of the connected members are automatically imported from RFEM/RSTAB. As an alternative, the joint can be Set manually.

Joint on Nodes No.

In this text box, you can directly enter the numbers of the nodes to be analyzed. You can use the [Select] button to define the nodes graphically in the RFEM/RSTAB work window.

TIP

Multiple selection of nodes is only useful if they have identical input parameters. If there are different design conditions, it is not possible to combine the nodes in this window. In such a case, you have to create a new design case: To do so, click FileNew Case in the menu or use the and buttons in the Parameters section below (see description for the following section).

If you select Set manually, the import of data from RFEM or RSTAB is disabled. A note that says User-defined appears in the text box. Then you can enter the Parameters independently of the model.

Image 2.11 Defining a joint manually
Parameters

In this window section, you can manage the properties of the structural components connected to the nodes specified above.

Image 2.12 Parameters dialog section with [Show or Hide Inactive Members] button
Construction Status

In this column, you can classify members for the design. The available options depend on the selected joint group and joint category.

Cross-Section Description

When importing nodes from RFEM/RSTAB, the member cross-sections are preset.

To change a cross-section, click its entry in this column to activate the text box. To open the cross-section library, use the button in the text box (see Figure 2.10) or press [F7].

Image 2.13 Cross-section library

Chapter 4.13 of the RFEM manual, or Chapter 4.3 of the RSTAB manual, describes how to select cross-sections from the library.

Modified cross-sections are highlighted in blue.

Material Description

When importing nodes from RFEM or RSTAB, the cross-section materials are preset as well.

To change materials, click the entry in this column to activate the text box. To open the material library, use the button in the text box (see Figure 2.10) or press [F7].

Image 2.14 Material library

Chapter 4.3 of the RFEM manual, or Chapter 4.2 of the RSTAB manual, describes how to select materials from the library.

The buttons in the Parameters section have the following functions:

Table 2.1 Buttons in the Parameters section
Button Function

Sets the default values for the connection

Deletes the node selected in the table above

Transfers the selected node to a new design case

Transfers all unsuitable nodes to a new design case

Sets the connection type for all nodes of the design case

Shows or hides inactive members in the table

Shows the RFEM/RSTAB work window for changing the view

The buttons and have an important function:

TIP

If you want to design several nodes with different boundary conditions, such as the number of connected members or the member cross-sections, these buttons allow for a manual or automatic assignment to new design cases. You can then define the parameters for specific nodes in the different design cases. Alternatively, you can also click File → New Case in the menu.

The design cases including the data related to the nodes are displayed at the top of the navigator. Window 1.2 Nodes and Members always displays the parameters of the nodes selected in the navigator list. To switch the design case, simply click the relevant entry in the list.

Graphic window

The graphic window presents an overview of the connections to be designed. It shows a dynamic partial view of the model. The node selected in the Parameters section is indicated by an arrow; the connected members are highlighted.

Image 2.15 Graphic with selection arrow

You can control the graphic by using the same mouse functions as in RFEM or RSTAB in order to zoom, move, or rotate the view.

The buttons next to the graphic have the following functions:

Table 2.2 Buttons in graphic window
Button Function

Shows the view in the direction of the X-axis

Shows the view in the opposite direction of the X-axis

Shows the view in the direction of the Y-axis

Shows the view in the direction of the Z-axis

Displays the isometric view

Resets to full view of the graphic

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