I have used ETABs one way load distribution button for a long time and it works great on flat floors and "slightly sloped roof" to distribute load based on tributary area.

Today though, a coworker of mine noticed on a slightly more pitched roof, angle of about 30 degrees, the one way loading was not working as intended (could not see applied loading due to tributary area).

I built a test model to explore the odd behavior.

Slab section properties uses one way distribution:

(3) sample floors are made, each with the same load and beam restraint layout, but you can see, once the floor becomes "too sloped", the load distribution switches from a line load on the frame elements to merely point loads applied at the edge of the membrane

 

The magic slope where this seems to occur is about 20 degress from horizontal.

Hopefully this post saves someone in the future the pains of troubleshooting this odd behavior

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  • retug on Diaphragm Slicer New and Improved -

    Hi Trenno, I just uploaded a new .dll file to github that has metric units included. Give it a whirl, let me know if you have any trouble on the install. I think it should be as easy as downloading the .dll file and adding the file path to the 

  • Trenno on Diaphragm Slicer New and Improved -

    How's the Metric version coming along? Keen to check it the tool. 

    Could you set it up so that the model is run within the initial steps of routine of the plugin? 

  • retug on Project Management with Deltek -

    Hi Tushar, I've used Seaborn as well, it's a good package. 

    I use Matplotlib for quick and dirty plotting, you just can't beat the amount of documentation and examples you can find out there for it.