Answer:
The standard EN 1991‑3, Table 2.2., specifies load groups 1 to 10. These are equal to the denotation of the classes in our software.
The integration in Categories A to E is a specific classification by Dlubal Software.
- Category A: Ultimate limit state → Table 2.2 of the standard: ULS (1-7)
- Category B: Proof load (8)
- Category C: Accidental (9,10)
- Category D: Serviceability limit state (11-13)
- Category E: At a customer's request, it was included in the combinations and was intended to be used for load cases where support forces from the crane runway girder calculation are combined on the rest of the structure.
The article in our Knowledge Base (see Links below) points out that the combinations (Classes A to D) should be used for the preliminary design of crane girders. For the supporting structure (brackets, supports, trusses), these combinatorics should not be used.
In your model, the support loads from the crane girder design are only considered in Category E.
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