This research presents the effect of drop area in the center of span with different
thicknesses of drop using finite element method(FEM) .The numerical work here
focus on the effect of drop area on deflection and shear stress on flat slap with drop
area and compare it with flat slab without drop area. Nonlinear finite element on the
slab specimens with drop area was realized using ANSYS software. the study
models is flat slab with drop 0.06m and 0.12m with fixed and varying bottom with
area of drop (2*2)m ,from this research it can be conclude that the best case of drop
in deflection ,stress y and cracks is flat slab with drop 0.12m with varying bottom
with area of drop (2*2)m.