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Comparative Study of Stress Distribution in Foundation for an Eccentrically Loaded Footing

Author(s):

Vishnu Patidar , MAHAKAL INSTITUTE OF TECHNOLOGY AND MANAGEMENT UJJAIN (M.P.); Dr. J. N. Vyas, MAHAKAL INSTITUTE OF TECHNOLOGY AND MANAGEMENT UJJAIN (M.P.); Prof. Hussain Hararwala, MAHAKAL INSTITUTE OF TECHNOLOGY AND MANAGEMENT UJJAIN (M.P.)

Keywords:

Modelling, MATLAB Transformer, Inrush Current, Solar Power Plant, Switching Method, Harmonics

Abstract

The footing is designed as rigid structure. When the load applied on footing is eccentric, the pressure distribution in elastic case is given by (P/A ± M/I*y). Pressure distribution no longer remains uniform. The moment the pressure exceeds ultimate bearing capacity of soil .The soil yields and redistribution of the soil pressure takes place. This process continues till the ultimate pressure below the footing becomes equals to ultimate bearing capacity of soil with reduce width of footing (Bowles). At this stage the effective settlement of the footing is more than elastic case. This causes differential settlement in the footing columns. Results in tilting of the structure, has been observed in practice in buildings with columns on property line. As such an attempt has been made to study the actual pressure diagram under the footing by analysing the footing soil media by Finite Element Method using SAP software. The study is made for uniaxially and biaxially loaded columns and to incorporate the results in the design of footings for eccentrically loaded columns. Non linear and linear analysis is performed for eight cases of uniaxially and bi axially loaded footings.

Other Details

Paper ID: IJSRDV5I90270
Published in: Volume : 5, Issue : 9
Publication Date: 01/12/2017
Page(s): 464-469

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