Comparative Analysis of RC Structures Under Different Soil Strata with & without Base Isolation Using Soil Structure Interaction Effect

The seismic response of a structure is highly influenced by Soil Structure Interaction (SSI). In this study, the flexibility effect on the behaviour of building was investigated under different soil conditions i.e. soft, medium & hard. In this study we also considered fixed support & replaced it by different conditions for better enhancement of results. The use of base isolation system also has been introduced for better considerable effect & to understand the behaviour of the structure. The aim of this study is to observe the behaviour of such system for seismic control under different configuration of soil with different behaviour which is useful to find its sustainability and is to review such kind of technologies for seismic control. In this study, a G+ 5 storeys building is considered with fixed base and base with different spring properties of soil with & with base isolators. The dynamic analysis is carried out using Response Spectrum, given in IS1893-2016 using Etabs Software. The influence of different properties of soil with base isolation effect on various structural parameters i.e. natural time period, base shear, roof displacement, drift and overturning moment are observed, studied and presented which reveals that the Soil structure interaction effect along with base isolation properties significantly affects on the response of the structure.