Soil structure interaction analysis of RC frame shear wall buildings over raft foundations under seismic loading
Structural failures during earthquakes in the past demonstrated the importance of soil structure interaction (SSI) effects and its consideration to avoid failure and ensure safety. The present study focuses on SSI analysis of RC frame shear wall building over raft foundation subjected to seismic loading. Multi story buildings symmetric in plan of height below 45m, located in seismic zone V according to IS1893:2002 are considered. The stress resultants in the structure and raft foundation considering SSI are compared with stress resultants obtained by the conventional method of analysis assuming rigidity at the base of the structure. The results show the significance of SSI effect