Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/3575
Title: Settlement analysis of shallow foundation on frictional soil under combined effect of static and cyclic load
Authors: Sasmal, Suvendu Kumar
Behera, Rabi Narayan
Keywords: Dense sand, strip footing, repetitive load, settlement,
critical num- ber of load cycles
Issue Date: Jul-2021
Citation: 7th ICRAGEE 2020;IISC Bangolore, 25-15 July 2021
Abstract: The settlement of a surface strip footing on dense sand due to long- term repetitive load (1 million cycles) is analyzed with the help of Finite Ele- ment Method (FEM). The analysis is performed by applying both static and cy- clic load on the center of footing, in the vertical direction and observing the cor- responding settlement. The intensity of the static load is determined by dividing the ultimate static load by factor of safety (FS). The static load is calculated for different values of FS i.e., 2, 2.5, 3, 3.5. The intensity of the dynamic load (qd(max)) is some percentage of the ultimate bearing capacity (qu) of the founda- tion. Three values of (qd(max)/ qu) have been considered in the study i.e. 5%, 10%, 13%. Three different frequencies of cyclic load (0.5 Hz, 1 Hz and 2 Hz) have also been considered. Based on the settlement pattern of the foundation, the critical number of load cycles (ncr) for each case is determined beyond which the increase in settlement becomes insignificant for further load cycles. The study reveals that even a minor change in the frequency of loading can re- sult in major variations in the ncr.
Description: Copyright of this document is with the conference publisher
URI: http://hdl.handle.net/2080/3575
Appears in Collections:Conference Papers

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