Soil Structure Interaction Analysis on Raft Foundation

Abstract

Soil Structure Interaction (SSI) is the response of the soil to the motion of the structure, or the structure's motion to the response of the soil. Heavy structures, particularly high-rise buildings built on soft soil, have a lot of soil-structure interaction. Inthis paper the major portion of work was carried out to know the parameters such as settlements, displacements, base shear, storey drift, bending moments, shear force and damages due to various forces when a buildings foundation is laid on raft foundation. soil structure interaction (SSI)analysis was done using various numerical, empirical, methods by using a combination of software such as ETabs and safe,ETabs and Plaxis 2d/3d, FLAC 3d ,Midas and SAP2000 . From those analysis it was found that SSI and Non-SSI interactionanalysis has shown a great difference in terms of Structural safety and stability. There was a great impact of subbase on the structure for different conditions of buildings such as high-rise structures, storage buildings, massive transportation structures, signal transmission towers and chimneys. Different structures with different utilities and different properties were studied and analyzed.