Hello. slabs do not fit on beams) --Analysis settings-load security, tick TS500-TS498, --Two loading cases 4.8.5.1-4.8.5.2 ...., --Geometry errors are not left when inclined slabs are deleted, --Rat without beam with foundation - In this case, when the calculation is made, there are axial inadequacies in a few columns, (section increase can be a solution.) Enter the slabs with the correct modeling and complete the final calculation by making the finite elements 0.25 m. Check the link below. .idecadsupport.com/forum/viewtopic.php?f=5&t=9082&p=36907&hilit=e%C4%9Fik+d%C3%B6%C5%9Feme#p36907]viewtopic.php?f=5&t=9082&p=36907&hilit=e %C4%9Fik+d%C3%B6%C5%9Feme#p36907[/url] Ünver ÖZCAN