When entering structural data, how can I define a plane calculation to avoid defining supports in y-direction for a two-hinged frame, for example?
The plane (2D) or spatial (3D) model type can be set under "General Data".
You can access the "General Data" dialog box of your structure by clicking menu:
"Edit" -> "Model Data" -> "General Data".
It is also possible to access the general data of the structure by right-clicking "Model Data" in the Data Navigator and selecting "General Data" in the shortcut menu.
The model type - plane (2D) or spatial (3D) - can also be changed subsequently.
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The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions