Thanks for your replies.
The red lines are walls under and the white areas are openings. It is a flat slab.
I am not a big fan of FEA and I normally do traditional computation for slabs but when irregular slab can't be avoided I don't know what simplified method can be used in lieu of FEA. And...
It is my first time to design irregular 2 way slab and I need some help from you.
I have used FEA for the slab analysis and below is the shell stress. Most of the stress is less than 3 MPa. but I have noticed that the stress in some mesh is greater than 35MPa (the green ones). Why is that? Is...