What exactly are null lines? I have a large building modeled in ETABS Nonlinear with many gridlines and I have been recommended to convert some gridlines to null lines to decrease computational time and increase efficiency. What is the criteria for utilizing null lines and how are they strategicallly used?
Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
Null Lines ETABS Nonlinear
- Thread starter lanceraby
- Start date
I'll use null lines to apply line loads to structures.
If you have slabs meshed at visible gridlines, but not at lines, you'll decrease the run time when you switch over because the mesh will be coarser. Other than that I'm not totally sure why it would speed up calculation.
If you have slabs meshed at visible gridlines, but not at lines, you'll decrease the run time when you switch over because the mesh will be coarser. Other than that I'm not totally sure why it would speed up calculation.
- Thread starter
- #3
- Status
Similar threads
- Question