Fragility Function of Buried Pipelines Under High Level of Ground Motion with the Aid of Dem Analysis

Abstract eng:
Seismic damage estimation for buried pipeline has been done by using damage estimation formulae (fragility function) obtained by statistical data in the past earthquakes. However these functions are reliable up to the level of ground motion which is used for the development of formula. Moreover any theoretical or numerical calculation for the pipeline damage formulae does not exist. Here we propose a new method to obtain fragility functions of buried pipelines depending on the failure modes by applying a numerical simulation of DEM, which are compared with the past fragility functions.

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