Hello, In your project, the 2nd basement floor is rigid. In the Analysis Settings/General Settings tab, we recommend selecting "bi-load state calculation method" for "Calculation of buildings with basements with 4.8.5 modal calculation methods". In this case, the column design effects and accordingly the reinforcements will decrease.
Note: Cassette tooth spacing is defined as 120 cm. In TS 500, it is required to comply with the single-direction gear laying conditions in bidirectional toothed floors. Accordingly, the tooth spacing is 70 cm. It would be better not to be large.