Hello, The following are the findings and suggestions for data entry in the project; *In the project, the superstructure interactive solution has been made and the base has not been defined under the P5-P7-P11 panels.(This may affect the results of the analysis.) *Floor and normal K26 beam is drawn on the panel object on the floors. There is no need for this. The floor can be connected to the P01 panel as in the basement. *According to TDY 2007 article 3.6.2.1, the thickness of the curtain end zone cannot be less than 1/15 of the floor height. The ground floor height is 3.90 meters The wall thickness should be at least 26 cm for straight-arm staircases. *For staircase details, stair reinforcement axes should be drawn and stair analysis should be done. im6/static/stairs_hesabi_ve_donati_cizimi/stairs_hesabi_ve_donati_cizimi.html[/url] Good work"kth10":2ma0rt95" said:mrb friends I'm waiting for your help on 4 issues 1- combination error in s04 arm 2- curtain error in geometry control 3- details of stairs 4- elevator shaft....and don't show it in the basic section of the project I uploaded below Can you help?