New Iterative method to Calculate Base Stress of Footings under Biaxial Bending

Year 2016, Volume: 8 Issue: 4, 40 - 48, 29.12.2016

İbrahim Aydoğdu

https://doi.org/10.24107/ijeas.281460

Cited By: 2

Abstract

Base stresses of the footings should be calculated under biaxial bending
especially for structures in seismic zones. However, calculation of the base
stresses is not easy for the footings with large eccentricity due to the fact that
interaction of the stresses in both directions should be considered and
redistribution of stresses is required in zero stress zone.  In this study new iterative method is
presented to calculate the base stress of rectangular footings under biaxial
bending. A computer program is developed according to this method. A design
example (single footing having rectangular shape) is analyzed using the
developed program and computed base stresses are compared to previous results
in order to test accuracy of the method. The design example is also analyzed
using different eccentricities in order to reveal efficiency of the
redistribution under biaxial bending.

Keywords

Biaxial bending, single footings, base pressures, numerical model

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