Hi
Has anyone else encountered any problems when you have tried to do RC beam calculations in Robot? In my case I have a ribbed RC slab, slab thickness is 250 mm and height of conrete beams (modelled as simple bars) is 1000 mm. I do get some results but when I try considering axial forces in calculations Robot crashes everytime.
I think these axial forces should be taken into account since now I have a maximum bending moment ~500kNm in ULS and at same point I have also a 500 kN axial force. If you multiply this axial force with eccentricity of beam you get additional 200 kNm of bending moment. So does anyone know can I take this axial force into account in Robot or do Ihave to design these beams by hand calculations?