If i model my project and add slab,what will be the difference if i dont generate plate mesh, after adding slab i add load and run analysis without generating mesh.

In Ram Concept? The program will always generate the mesh before you run the calculations. If there is a minor error in the first mesh generation, you may choose to skip re-meshing it again the next time. It's a best practice to regenerate the mesh after the design strips are modeled so that the mesh aligns with the strips as best possible.

In continuation of Doubt no 3 , If I am applying a Live load on Plate (by Plate Load - Pressure on Full Plate) without meshing , I am also not able to see any value ("0" value is showing) under LIVE LOAD in post processing mode (Also SF, BM diag is not visible)

My doubt is - " If I am applying a Live Load on plate element, I am not able to see any BM due to LL on plate and any changes in Beam BM. Please help me to know why is it so ? and what is the possible reason behind this ?

I have seen many tread, where we can design a slab using " Floor load" also. My question is - " If we're designing a slab using "floor load" (without generating plate), how can we get the output of slab reinforcement details in this case?, because in this case, all the stresses will transfer to the beam directly and further to the column through column and may lead to design of over reinforced beam.

I have run an experiment analysis where I am getting higher reinforcement in beam (say beam no X) (when the structure is designed using Floor Load method instead of plate meshing under same loading condition) ?

Which one method is more accurate Floor load or plate meshing to design ?

I have designed slab using parametric model (By Generating Plate mesh) and compare results by applying 1)Plate pressure load 2) Floor Load. And I got the different results in both the case. Please help me to know, which approach is the realistic approach to design slab ?

1) As, I am getting max stresses in the middle portion of the slab under plate pressure loading condition and max stresses in the middle edge beam under floor loading condition.

P.S - While Applying Plate Pressure and Floor Pressure (Keeping load value and all other parameters same for comparison)

Case 1 - Design Beam and Slab by applying Plate pressure load uniformly distributed over whole slab (In this case I am getting max stresses at the center of the plate)

Case 2 -Design Beam and Slab by applying load of Floor pressure (In this case I am getting max stresses at the middle beam).