How can I define a plane calculation for a two-hinged frame to avoid defining supports in the Y‑direction?


You can define the model type 2D - in XZ (plane) or 3D (spatial) in General Data.

General data of a model can be found under "Edit → Model Data → General Data."

Figure 01 - General Data via Menu

As an alternative, you can right-click "Model Data" in the Data navigator and select "General Data" in the shortcut menu.

Figure 02 - General Data via Navigator

The model type can also be adjusted retroactively.


Model type General data 2D model Planar

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RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD
RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD