Effect of spatial variability of earthquake ground motions on the reliability of road system

Ering, P and Sivakumar Babu, GL (2020) Effect of spatial variability of earthquake ground motions on the reliability of road system. In: Soil Dynamics and Earthquake Engineering, 136 .

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Abstract

This paper presents an approach for assessing the failure probability of a road system due to its interaction with landslides induced by the earthquake. The landslide occurrence and failure probability of the road system is estimated by considering the spatial variation of earthquake ground motion. Since significant incoherence in earthquake ground motions is usually observed within the spatial dimensions of large horizontally expanded structures like roads, bridges and dams, it is important to consider the uncertainty due to spatially varying ground motion. The stochastic nature of seismic loading is incorporated in the study by generating a series of earthquake ground motions while the spatial variation of ground motion is accounted for by using cross power spectral density function. Two phase material point method (MPM) is used to simulate the dynamic behaviour of saturated slopes. MPM is able to capture the failure mechanism of slopes under seismic loading and evaluates the travel distance of sliding mass. © 2020 Elsevier Ltd

Item Type:	Journal Article
Publication:	Soil Dynamics and Earthquake Engineering
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd
Keywords:	Failure (mechanical); Landslides; Outages; Roads and streets; Spectral density; Stochastic systems, Cross power spectral densities; Dynamic behaviours; Earthquake ground motions; Failure Probability; Spatial variability; Spatial variations; Spatially varying ground motion; Two-phase materials, Earthquakes, dynamic response; earthquake; ground motion; landslide; reliability analysis; road; sliding; slope failure; spatial variation
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	03 Nov 2021 10:49
Last Modified:	03 Nov 2021 10:49
URI:	http://eprints.iisc.ac.in/id/eprint/65574

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