Bug related to loads in local coordinate system

Dear SOFiSTiK team

I have found a bug related to loads in local coordinate system. Namely, if there is a structural point on top of a structural line, then it seems that the loads applied to the structural line in its local coordinates are not applied correctly. See the demonstration below:



In this case the problem is caused by the SPT NO 7 in the following code:

+PROG AQUA urs:31.8
HEAD Materials
    NORM DC "EN" NDC "199x-200x"
    STEE No 1 TYPE S CLAS 355
END

+PROG SOFIMSHC urs:30.9
HEAD
    SYST 3D
    CTRL MESH 1
    CTRL HMIN 0.5
    SPT NO  X   Y   Z
        1   0   0   0
        2   5   0   0
        3   5   1   0
        4   0   1   0
        5   0   0.5 0
        6   5   0.5 0

    SPT NO 7 X 2 Y 0.5 Z 0 $If this line is active then the lineload in local coordinate system are applied incorrectly

    SLN NO 1 NPA 1 NPE 4
        SLNS FIX PP
    SLN NO 2 NPA 2 NPE 3
        SLNS FIX XP
    SLN NO 3 NPA 5 NPE 6 GRP 1 DROT -45


    SAR NO 1 GRP 1 MNO 1 T 100 MCTL REGM H1 250[mm]
        SARB    NA NE
                1   2
                2   3
                3   4
                4   1


END

+PROG SOFILOAD urs:30.10
HEAD
    ACT G

    LC 1 TYPE G TITL "Load in global Y and Z"
        LINE REF SLN NO 3 TYPE PYY P1 10
        LINE REF SLN NO 3 TYPE PZZ P1 10

      LC 2 TYPE G TITL "Load in local Y and Z"
        LINE REF SLN NO 3 TYPE PY P1 10
        LINE REF SLN NO 3 TYPE PZ P1 10

END

+PROG ASE urs:30.11
HEAD
    LC ALL
END


Results are correct if SPT NO 7 is removed:

With best regards,
Martin

1 Like

Hi, please tell us which version you are using.
To answer properly or to go deeper in detail we need this information.
Simply goto the TEDDY menu Help > Info about and post a screenshot from your installation here.
Thanks

Hi

I have tested in two versions:

  • Service Pack 2024-6 Build 905
  • Service Pack 2025-0 Build 135

With best regards,
Martin

Hi,

If possible please let us know, if this will be addressed in the future versions. At the moment it is not working correctly in version 2025-2.
I haven’t tested version 2025-3 since many of my other calculation models do not work in 2025-3 so I have uninstalled it.

With best regards,
Martin