According to CSM → CTRL → ADDF: ADDF =1 add optimization factor to the last one
- What deos ADDF do in CSM?
- “last one” of what?
According to CSM → CTRL → ADDF: ADDF =1 add optimization factor to the last one
Hello
In order to understand the optimisation workflow in CSM open the TEDDY example
TEDDY > File > Examples > csm >english > optimize > csm20_opti_intro_finalstage.dat
In this example you see that you need different steps to calculate the optimal prestressing forces of the cables. The basic ideas of the optimisation workflow is also described in the CSM manual (chapter 2.10.1 Optimization on final system without construction stages).
Now I explained the basics of the optimisation process, you can understand what the comand CTRL ADDF 1
does.
The steps 3 and 5 calculate factors for the prestressing load cases. Because you have different iteration steps and different primary load cases (ECLC 91 and EQLC 92), you get two sets of factors. If you don’t add the factors of the second CSM run to the first CSM run you only consider the change of the factor between iteration 1 and 2.
Calculated factors after the first csm optimisation run:
Calculated factors after the second csm optimisation run (CTRL ADDF 0
)
Calculated factors after the second csm optimisation run (CTRL ADDF 1
)
As you see in the screenshots, the command CTRL ADDF 1
adds the new factors of the second CSM optimisation run to the factors of the first CSM optimisation run.
I hope you can understand my explanations and now understand how the command works.
Best regards
Frederik Höller
Your SOFiSTiK Support Team