BeamView Mx visualization trouble on a symmetric structure

I'm studying a simple symmetrical structure with symmetrical loads and supports in karamba 1.0.4 (see attached files).

Using the BeamView function, Mx does not appear symmetrical, while, if I plot the Mx or Mt values I found always 0.

It is my fault or a bug in the visualization?

Replies to This Discussion

Permalink Reply by Karamba3D on December 10, 2013 at 11:25am

Dear Gianpaolo,

the theoretical value for the torsional moment in the upper beams is zero. Nevertheless due to numerical inaccuracies small numbers result (say 1E -12 or something like that). The numbers above the Mt-lines (or rather Mx) indicate that: they come out as '0.00'. In case you want to see a wider number range you can set that in the 'karamba.ini'-file. The distance of the Mt- lines from the beam axes is scaled in such a way that the largest value (in your case 1E-12 for example) corresponds to a certain percentage of the overall structural length. This is the reason why it is visible.

Best,

Clemens

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