External straight Prestressing

I just have a question in this photo.

If i have straight external Prestressing then i have to enter a zero for all these inputs ?


This should be correct. If you’re not sure, try varying the parameters within a small example and check the results.

For explanation:
The input of this task refers to the TENDON comand SYSP. So if you need more information, take a look at the TENDON manual.

  • Straight length at an active anchor → LPRE
    Straight length at a coupler → LFIX

  • Enable the modelling of a straight duct geometry at the jacking and dead anchor.
    For this purpose PTUV KIND or PTSV KIND of respective points must be set ac-

  • Straight length at a passive anchor → CDIS

  • Can be used to check the distances of the duct geometries to each other and to
    the edge of the elements. Deactivated with 0.
    Note: The checks take into account the respective duct tube diameters, i.e. the
    check applies to the thickness of the concrete between the ducts or to the edge.

Best regards
Frederik Höller
Your SOFiSTiK Support Team

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