Integration of beam forces from shell model

SOFiSTiK
1

Hi

“Is it possible in Sofistik (Teddy) to integrate beam section forces from a shell model? This could be, for example, a bridge deck modeled by shell elements where it is relevant to calculate the resulting beam forces within the structure.”

2

Hi Jakobgren,

Yes, it’s possible to extract the equivalent beam forces (N, Vy, Vz, My, Mz, and Mt) from a shell model using the PROG SIR module.

I recommend checking the official documentation and examples for detailed guidance. Here is an example I used in a recent project:

+PROG SIR 
ECHO FORC FULL
CTRL AQUA 6
GRP NO 1 OPT FULL ETYP QUAD
LC  (1000 1005 1)
LC  (2000 2033 1)
LC  (3000 3049 1)
LC  (4000 4099 1)
SECT  NO   XM                      YM         ZM       NX     NY    NZ  YMIN=-0.40  YMAX=0.40  ZMIN=-0.975   ZMAX=0.975 SX=0 SY=-1 SZ=0
      1   (0.00 19.22 0.31)        0.0      0.975      -1     0     0
      1   (19.5525 32.52 0.3325)   0.0      0.975      -1     0     0
      1   (32.768 35 0.248)        0.0      0.975      -1     0     0
END

Let me know if you have any other questions!

Good luck!

Best regards,
Abderrahman OMRI