RFEM – Online Manual

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RFEM – Online Manual

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Continuous beam
Figure 11.152 Generate Continuous Beam dialog box

RFEM creates a continuous beam with supports, irregular spans, and a uniform cross-section. Optionally, load cases and result combinations are created as well.

2D frame
Figure 11.153 Generate 2D Frame dialog box

Before you enter geometrical data and cross-section properties, select the Frame Type. The columns of the planar frame receive equal support conditions.

Tapered 2D frame
Figure 11.154 Generate Tapered 2D Frame dialog box

The planar frame must be defined by its Geometry and Cross-Sections. You can create tapers, craneway consoles, and eccentric connections. Loads can be generated as well. The buttons provide access to the generator parameters. The Frame location is important for the load determination.

Figure 11.155 Settings - Wind Loads dialog box
2D truss
Figure 11.156 Generate 2D Truss dialog box

In the list, specify the Type of truss and the arrangement of the Diagonals. Then you can define the Parameters, Cross-Sections and Member Types.

Figure 11.157 Generate Grid dialog box

Use this generator to create models that have a uniform grid (e.g. gratings). They do not need to be designed with right angles as in the dialog graphic above. Any kind of spatial quadrangle model with four corner points is possible. To generate a "real" girder grillage, it is recommended to set the Type of Model to 2D - in XY in the model's general data (see Chapter 12.2).

To generate irregular grids, use the button.

Figure 11.158 Generate Column dialog box

In the Type dialog section, define if a center or corner column is generated. If you want to generate Loads, you have to specify their Effective Widths and Correction Factors.

For generating a gable column, the span a is required for the influence range in the longitudinal direction of the hall. The factors f1 and f2 are used to scale the geometric widths b1 and b2 for the static model or to fulfill specific code requirements (e.g. load increment factors for individual designs).

Roof generators

The Roof menu item provides three roof generators, which you can use to generate planar roof systems including loads (see following figures).

The [Settings] buttons in the roof dialog boxes help you to determine wind and snow loads (see Figure 11.155).

Roof → Collar Roof
Figure 11.159 Generate Collar Roof dialog box
Roof → Rafter Roof