Rigid basement condition is not provided.
The Complete Message:
TBDY Article 3.3.1.1.b rigid basement condition is not met.
In the Article 3.3.1.1 of TBDY 2018, the floor is considered as a rigid basement.
3.3.1.1 - In buildings with basements that meet both of the conditions given in (a) and (b) below , the building floor is defined at the level of the floor covering at the top of the basement walls.
(a) Rigid basement walls surrounding the building from all sides or at least three sides,
(b) orthogonal in the dominant vibration mode in the direction of each of the building axis calculated for the entire building, including basements natural vibration period 's, including the flooring on the ground floor in the same carrier system all basement mass calculated in the same direction irrespective of the natural vibration period of ' the ratio of the 1.1 be small ( T p, all ≤1.1 T p, top ).
3.3.1.2 - Buildings with basement and buildings without basement that do not meet any of the conditions given in 3.3.1.1 , the building floor is defined at the foundation upper elevation.
This message is given if there are floors with rigid basement processed in the Floor General Settings, if (b) condition is not met .
The control process is given in the Dynamic Analysis Report.
Solution :
In the Floor General Settings, remove the Rijt-X, Rigid -Y marks for the marked floors and repeat the analysis.