Answer:
For models created before version X.06., the stiffness coefficients are only applied for load combinations, not for load cases, by default. In the "Calculation Parameters" section, it is necessary to use the corresponding option under "Activate Stiffness Factors" to ensure that the stiffness modification is also applied to the load cases. The stiffness modification is automatically active for the new models as of version X.06.
Question
The stiffness has been modified for surfaces, members, or cross-sections, but this is not considered in the calculation. How can I activate the modification for the calculation?
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