PERFORMANCE OF CYCLIC LOADING ON CIRCULAR FOOTING ON GEOGRID REINFORCED SANDBED

Shweta N.Vantamuri

Abstract: Foundation is a part of structure which transmits weight of structure to the ground. In addition to static loads the foundations are subjected to dynamic loads like machine loads, seismic loads and moving wheel loads. This paper presents laboratory test results of cyclic loading on circular footing on geogrid reinforced sandbed for different densities. In this paper, works are carried out on circular footing with different densities i.e. 1.642gm/cc, 1.722gm/cc, 1.763gm/cc and with number of layers as 0, 1, 2, 3. Dynamic soil properties as coefficient of elastic uniform compression Cu, coefficient of elastic uniform shear Ct, coefficient of elastic nonuniform shear C? and the coefficient of elastic non uniform compression Cf were also determined. It has been concluded that as density of sand bed and as number of layers increases, settlement of footing decreases.

Keywords: Cyclic loading, geogrid, coefficient of elastic uniform compression , coefficient of elastic uniform shear, coefficient of elastic non-uniform shear and the coefficient of elastic non uniform compression

DOI: https://doi.org/10.15623/ijret.2015.0405096