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Earthquake loss estimation systems in the US, for example HAZUS (Hazard in US), have been established based on  sufficient damage records for the purpose of prevention and efficient response to earthquake hazards; however,  in Korea, insufficient data sets of earthquakes and damage records are currently available. In this study, the  earthquake damages to pipelines in Korea using the pipeline repair rate (RR) recommended in HAZUS was reevaluated with  the degree of confidence when RR is used without modification for the damage estimation of pipelines  in Korea.  The numerical analyses using a commercial finite element model, ABAQUS, were carried out to  compare stresses and strains mobilized in both brittle and ductile pipelines constructed by the design  criteria and construction specifications of both Korea and the US. These pipelines were embedded in dense  sand overlying three different in situ soils (clay, sand, and gravel) subjected to earthquake excitations  with peak ground accelerations (PGAs) of 0.2 to 1.2 g and 1994 Northridge and 1999 Chi-Chi earthquake loadings.  The numerical results show that differences in the stress and strain rates are less than 10%. This implies that RR  in HAZUS can be used for earthquake damage estimation of pipelines with a 90% confidence level in Korea

Seismic behavior of buried pipelines constructed by design criteria and construction specifications of both Korea and the US