Finite Element Method Analysis Applied to Different Foundations Structures Systems

In the conventional static analysis of building frames, base is idealised on rigid supports and subdivided into three parts namely, superstructure, foundation ground soil, before design. real life situations, soil underneath undergoes deformations which may alter performance structure. this paper, it studied effect type response a frame system with both fixed flexible base. The Winkler model soil-structure interaction adopted to study influence flexibility rigidity 4 storey RC regular plan resting types soils light peat marshy ground, wet clay medium gravel fine sand. Three foundations are considered in study: isolated footings, tied raft (with without overhangs) foundations. developed using springs by Finite Element Method SAP2000. settlement, bending moment, shear force axial parameters placed forth for comparative study. Results obtained reveal an increase structure respect rigidity.