Re: YOUR RECOMMENDATIONS FOR THIS PROJECT Mr. izmirli_35_35 My suggestions for your project: I think the program gives economic results in iron reinforcement. 1- Make the upper rigid floor number -2 not -1, 2- Enlarge the foundation under the S15 column in the narrow direction, (not 70 cm, but at least 140 cm) 3- Insert the K4 beam into the column very close to the column, 4- 1-2-3 - beams on axles do not form a frame. K2 beam can press on S1 and S2 columns according to the architecture, 5- You can give wall loads by removing window and door spaces, 6- Increase the live loads of floors bearing wall load, 7- ZK6 beam should be shifted according to the architecture, 8- By taking R=7 instead of mixed system, it is ductile It would be better if you solve it high, 9- the staircase modeling is wrong. Create a support for the mezzanine landing. (Modelling needs to be changed a bit.) Process the ladder and see how it is supported. Better solve for semi-rigid diaphragm to see. 10- K24 does not save the beam when I solve it by copying the ground floor upwards (as R=7) without changing it, but when I reduce its height (K24 25/40) it does. MY RECOMMENDATION CAL AFTER MAKE THE ABOVE CORRECTIONS. Take it easy Unver ÖZCAN