For G 2 residential building, column size 9"*15",16mm 4rod,12mm 2rod used.. hori

For G+2 residential building, M15 grade used ,for roof M20grade used

Plinth beam size for building area 9''*15'', 16mm 4rod,12mm 2rod( inbetween C1)

Plinth beam size for stair & portico area 9''*15'', 12mm 6rod( inbetween C2)

Pillar size C1- 9''*15", 16mm 4rods, 12mm 2rod,8mm rings

C2 9"*12", 12mm 6rods,8mm rings

Horizontal Distance between column is 17' & vertical distance is 11'.

Lintel beam 4.5" inch 10mm 4rod

Roof beam  for building area

9"*12",12mm 4rod ( inbetween C1)

Roof beam for stair & portico

9"*15", 16mm 6 rods (inbetween C2)

Roof slab 6inch M20GRADE

My question is

1) is this correct for G+2? Ground floor is already done...now I wish to go for first and second floor?

              It is good if you contact any structural engineer of your town who can give better advice after visiting the construction site.

                          Thank