Ground Relief Stress Error in Continuous Foundation

[gistkard]

Dear İdecad Management; Although there is an error in the soil safety stress in continuous foundations in the attached file, the stresses do not exceed the safety stress in the soil stresses of the continuous foundations in the calculation section. You mentioned negative ground stresses in the previous topic, but I have to make a curtain on the foundation beams due to the level difference. Frankly, I don't quite understand why there is a negative tension due to the curtain and why it gives this error in some but not all fundamentals... I would appreciate it if you could examine the file and help. (Note: Steel roof trusses will sit on top of the columns and a point load of 10 tons on the side columns where the truss will sit and 20 tons on the middle columns is defined.)

 

[Levent Özpak]

Dear Idecad Management; In the attached file, although there is an error in the soil safety stress in continuous foundations, the stresses do not exceed the safety stress in the calculation section of the soil stresses of the continuous foundations. I have to make a curtain due to the difference in elevation. Frankly, I don't quite understand why there is negative stress due to the curtain and why it gives this error in some foundations, not all foundations... I would appreciate if you could examine the file and help. 10 tons on the side columns and 20 tons on the middle columns.) Good work...

Dear gistkard, In the Project Analysis Settings / Foundation Soil Tab "Check for negative ground stress in foundations" is selected. It is seen that negative stresses occur in foundations that give stress warning. Good work

 

[gistkard]

Dear Mr. Levent; I know that we don't want negative ground stress in the foundations because there is no moment effect on the foundations.