The tall buildings having height is more than 30 meters. These using for different purposes like residential, educational institutes,
commercial, healthcare and storage power generation etc. from the past few years the many structures are damaged and collapsed by
earthquake, it shows that need of seismic adequacy for the existing building structures. The earthquake measures in terms of loss of
life and country properties. Building should sustain and bearing loads from gravity and lateral loads. The characteristics of material
used to construct decides the strength of the structure. The geometrical and cross sectional properties are depends on stiffness. In
this project G+20 storey framed structure with 5 by 3 bays located at earthquake zone III is analysis in soft soil conditions using
outrigger systems at 10th and 20th storey of tall RC frame building