Seismic Analysis of Irregular Building Frames with Soil Structure Interaction

Seismic response of structure is extremely complex because of non linear behaviour soil during earth quakes. Seismic design of structure is generally carried out assuming fixed based ignoring the flexibility of soil. The purpose of the study is to describe and investigate different approaches of considering soil flexibility in the soil structure interaction SSI with regard to response in the super structure. In the present work, to illustrate the effect of soil – stricture interaction on the seismic response of frame structure, irregular frame 15 storey having consider with based supported as fixed with an without considering the soil structure interaction. Building are model in SAP 2000. Three type of soil i.e. hard, medium hard, soft soil are used to in SSI – study. the soil is model as spring model or elastic continuum FEM , and stiffness is calculated by using the gerorge gazettes equation. The effect of SSI on various structural parameter i.e. natural time period, based shear, roof displacement, are studed and discuss. The main objective in using this earthquake was, to find out of the structure when heat by long duration and see the how the response of modified, when the soil effect are taken into considerate. Sumit S. Chaudhari | M. R. Nikhar | V. A. Kalmegh "Seismic Analysis of Irregular Building Frames with Soil Structure Interaction" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-1 , December 2020, URL: https://www.ijtsrd.com/papers/ijtsrd38125.pdf Paper URL : https://www.ijtsrd.com/engineering/structural-engineering/38125/seismic-analysis-of-irregular-building-frames-with-soil-structure-interaction/sumit-s-chaudhari