Why supports disappear

I create the 2D mesh in Grasshopper and apply the supports along the bottom of the structure.


I applied water pressure alike load on the outside of the structure,

These are the reactions in the X direction

The teddy file is attached, please remove “.dat”, unzip it and run 1.dat
no stiffeners.zip.dat (209.3 KB)

Now I create additional stiffeners on the inside face of the structure, the bottom of the stiffeners should meet the supports.


But most supports disappear, only 3 supports on each side remain

These are the reactions in the X direction

The teddy file is attached, please remove “.dat”, unzip it and run 1.dat
with stiffeners.zip.dat (344.3 KB)

Hello,

As I already told you, please test the program behavior on a smaller system without unnecessary modules.
If you still don’t find the problem, you can post your project on the forum and we’ll try to help you (single .dat file).

Best regards
Frederik Höller
Your SOFiSTiK Support Team