Has these load combinations been defined wrong?

[yiviw97057]

All the SLS quasi permanent combinations have been defined as "Case nature: dead". I find this strange as the only loads acting on the structure is variable water pressure (load case 13-16), live load (12), earth pressure (10-11), load from wheels (17-18). Should it not be "Case nature: Structural" for the SLS:QP combinations?

Edit: Load case from 12 to 18 has been defined as "Nature: Category A" - does this not mean live load hence not "Case nature: dead"?

[Krzysztof_Wasik · Accepted solution]

Hi @yiviw97057 

Combination nature is used only when combination is used in another combination (to define coefficients automatically- when it is expected). While calculations combinations, type (SLS, ULS etc) maters.

If necessary you can change nature using Edit tab (in combination table)