Seismic resilience estimation of water transmission networks by considering flow-based network analysis

Abstract

In this study, the comprehensive framework for seismic resilience estimation of water transmission networks was proposed by considering the flow-based network analysis. The proposed model consists of three phases including spatially correlated ground motion prediction equation, hydraulic analysis of damaged network, and recovery analysis of network facility. For numerical simulation of the damaged network, the MATLAB-based computer code was developed to enable the pressure driven analysis in EPANET analysis. The performance of the network system was evaluated based on system serviceability index and the direct and indirect cost were calculated according to damage states of the network facility. Numerical results showed that the slope of the resilience curve tends to decrease as the earthquake magnitude and interdependency increases.