772x
004477
2020-07-03

Question

RF-/DYNAM Pro - Equivalent Loads includes the result tables "5.8/5.9/5.10 - Equivalent Loads". Which sum is displayed in the case of the "All mode shapes" option?


Answer:
The sum indicated in this table does not reflect the correct superposition according to the standard. This is a simple summing up of the equivalent loads. A superposition with the selected superposition rule (SRSS or CQC) is not performed in this table!

Furthermore, there are differences if accidental torsion is activated in the add-on module. This leads to the generation of two load cases for each mode shape. They always contain the torsional moment in the positive and negative directions. As a result, the equivalent loads are doubled in this table.