<b>Dynamic Analysis of Multistory RCC Building Frame with Flat Slab and Grid Slab</b> Conventional R.C.C structure i.e flat slab, shear wall , column for different heights are modelled and analyzed for the different combinations of static loading with varying thicknesses of shear wall with varying height of multistoried building .The comparison is made between the conventional R.C.C flat slab structure of 10,20and 30 stories without shear wall . The comparison made between the conventional R.C.C flat slab structure of 10,20 and 30 stories with varying thicknesses of shear wall in multi storied buildings have been provided at some particular locations .The main objective of analysis is to study the difference between fllat slab and grid slab and also comparision of shapes of rectangle square and hexagon which shapes is best in siesmic behaviour of analysis using etabs software. Flat slab, Shear walls, Plate Stresses, Flexibility, Lateral displacement, Storey drif 1143-1148 Issue-4 Volume-2 Indrani V | Shubha D. K | Lavina E. J