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FAQ 002839 EN

9 April 2019

Results RFEM RSTAB

The sum of the bearing forces differs in my model from the internal forces in the results bar. What can this be?

Answer

Especially if you have modeled walls by means of surfaces, there may be a deviation between the sum of the bearing forces and the shear forces in the result bar. This is because the surface intersection sizes are integrated into stump sizes. Depending on the size of the FE network, it can lead to falsified or inaccurate results.

You can use the following procedure to improve the results:

  • Reduce the size of the FE mesh. The deviations between the bearing forces and the thrust forces should then approach 0.
  • Increase the splitting for result curves in the calculation parameters. This also leads to an approximation of the results.
In the result curves there is the possibility to display a smoothing line, which blurs the internal forces of the result bar over the total length.

Keywords

Result bar Deviation Horizontal thrust Earthquake Total

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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