Let's try to stick to the topic of the model please.
I'm not modeling changes in size of the columns because they are (at this scale) vastly stronger than the actual column, and they don't really contribute to the collapse (as they largely fall away, with the floors slabs themselves doing the damage). As noted the floor slabs are about the same all the way up.
I'm not modeling changes in size of the columns because they are (at this scale) vastly stronger than the actual column, and they don't really contribute to the collapse (as they largely fall away, with the floors slabs themselves doing the damage). As noted the floor slabs are about the same all the way up.