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Superelevation instructions

  • 1.  Superelevation instructions

    Posted 11-24-2019 22:52

    Hello,

     

    I am having a hard time understating how TBC is executing superelevation instructions in corridor modelling.

     

    I have created a dummy corridor with multiple material layers. Typical XFall -3%, max superelevation 6%. All material layers 250mm deep, defined at +/- 5m offset with -3% slope. Typical section on the straight is a simple crown.

     

    When all nodes are on top of each other, I am getting exactly the results I was expecting when superelevated. Please see screenshot below:

    Screenshot 1. Max superelevation of 6% applied with no dramas.

     

    But when I move one of the nodes left or right, it all falls apart:

    Screenshot 2. Max superelevation of 20.91% instead of 6%

     

    I have marked up in red the only difference between both templates.

     

    Below is the video showing how drastically changes the execution of that template.

     

     

    I know how to fix it (superelevate only Finished layer and define Material Layers as delta OS/delta elevation), I just want to know why its happening...

     

     

     

    Regards,

    Marian



  • 2.  Re: Superelevation instructions

    Posted 01-08-2020 22:22

    Has anyone else experienced strange behaviour as described above?



  • 3.  Re: Superelevation instructions

    Posted 02-23-2020 16:47

    up..