What is the easiest way to enter a scissor hinge in RSTAB or RFEM?

Answer

When selecting the global reference coordinate system, you can select special types of hinges, such as the scissor hinge. With scissor hinges, you can model the crossing of beams in RSTAB and RFEM.

Target

In the sample file, You have four members connected in one node. Each of the two member pairs transfers moments in its "continuous direction", but they do not transfer any moments to the other pair. Only axial and shear forces are transferred in the node.

Solution

Use a global hinge definition to realize a scissor hinge in RSTAB or RFEM.

In this case, the hinge must be assigned either to members 1 and 2 or to members 3 and 4. The other crossing member pair is modeled as bending-resistant without hinge.

Watch also the short video tutorial about "Scissor Hinges" which you can find in the video box on the left side.

Keywords

Scissor hinge Hinge Continuous

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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
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