Hello, I have a project of a beamless flooring system. I share with you a confusing point asked by the control engineer. According to this table in the reason for choosing the R coefficient of the report, it seems that Mdev>0.75 of the 4.3.4.6 article of the earthquake code should be provided for A12 and A13 selected for beamless floors. It is written in the 4.3.4.6 regulation that it must be met only in mixed systems. idestatic makes a 2-stage solution in beamless slab systems. But this part of the report is confusing. I couldn't find any explanation about this that I can share with the control engineer. Waiting for your opinions and ideas. I wish you a good day.