Help with Upper Rigid Basement Floor Number please?

[gencideci]

I am solving a project of 2 basement floors + ground floor + 1 floor. Accordingly, what should be the upper rigid basement floor number? What is the upper rigid basement floor number logic? I understood it when my teacher told me at school, unfortunately I forgot it when it was not repeated in time..

 

[guraykose]

IdeCAD Forum home page Training Documentation In the ideCAD Reinforced Concrete Tips section, examine the determination of the rigid floor number until the end.. G.KÖSE

 

[strs]

A detailed explanation is available at the link below.

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[HakanŞahin]

Determining the rigid floor number:

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