Greeting fellows engineers, I am making a thesis about slab flexibility and so slab rigidity is an important topic to me.
I want to know what exactly does Etabs to shell element when I select the type as "ribbed". The manuals are very blurry in this topic to say at best.
I found an article...
1- If you require beams that are offset from the column line , you should probably offset the column first so beams are not require to be offset.
2- I probably will use a shell thick element to model those beams and a shell thin element for the slabs as the figure below