Meaning of internal forces in wall

[Iva3]

Dear all,

I have a question so it would be great if you can help me. How can I interpret internal forces in wall from self weight. What it means in this case if I have different direction force from self weight?

The building is mixed (masonry with 3 concrete walls  in one storie).

Link for model: https://we.tl/t-t0pVwmAhu7 

Thank you for your help,

Iva

[Simau]

@Iva3 

Look at this simple example