Model Data> "Member divisions". This division ensures that z. For exampl" /> Model Data> "Member divisions". This division ensures that z. For exampl" /> For a single-span beam with a uniformly distributed load (M=q*l^2/8) the program doesn't show the moment graphic as a parabola. The table result values are right only for the maximum, but on other locations they are not. What can I do? | Dlubal Software
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For a single-span beam with a uniformly distributed load (M=q*l^2/8) the program doesn't show the moment graphic as a parabola. The table result values are right only for the maximum, but on other locations they are not. What can I do?

Answer

The problem with the internal forces graphic is due to member divisions. There are several divisions to be observed in RSTAB.

1. Member divisions for results tables


You can create member divisions for result values by using "Insert> Model Data> "Member divisions". This division ensures that z. For example, in RFEM table 4.1, you can also output the internal forces of members to intermediate points. The graphical output remains unchanged.


2. Member divisions for graphical representation


The divisions for the graphical result diagram and determination of the determination of extreme values can be viewed and influenced in the calculation parameters (pull-down menu "Calculation") (see Figure 1).

If you set the value for "Result diagrams" to a larger value, the internal forces graphic is displayed more finely (see Figure 2).

This division into the calculation parameters is considered globally. It is based on the longest member. Therefore, shorter members do not have the same number of divisions, but have similar partial sections.

Therefore, to improve the graphic, it is recommended to apply a finer division of the members (item 2).

Keywords

Bar division internal forces rounding off

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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