The selection of nodes and members is described in Chapter 2.2.
In the Parameters section, you can check the boundary conditions of the connected structural components. A section without I- or H-shaped cross-section is marked as an Invalid cross-section.
If other members such as transverse beams or diagonals connect to the node, the redundant members can be set Inactive, as shown in the following image.
In contrast to the Pinned Joints joint group, it is not possible to rotate the column member by 90° for Rigid Joints. The beams or columns connected in a node must always be connected in their main plane. For a bolted beam-to-column joint, for example, this means that a beam perpendicular to the web must be connected to the column flange.
Although the joint transfers bending moments in the plane, it is generally not a problem if the beam has a moment hinge in RFEM/RSTAB on the node to be designed.
TIP
TIP
If all members except the connecting beam are set Inactive for the Rigid end plate connection joint type, a connection is made to a so-called "anchor plate". This allows for connections to invalid column cross-sections (concrete columns), for example. In this case, all design components that refer to the "inactive part" of the connection are not taken into account (the anchorage in concrete, for example).
The modeling of an anchor plate is described in the following article:
https://www.dlubal.com/en-US/support-and-learning/support/knowledge-base/001034