Abstract：In order to assess the seismic recovery capability of urban lifeline systems, a framework, including damage probability, damage consequence and recovery speed, is proposed to assess the seismic resilience. Different from the previous assessment approaches considering single resilience dimension, a new performance response function (PRF) based on the infrastructure network equilibrium theory is used to assess the seismic resilience in integrated technical and organizational dimensions. On the basis of the framework, a simulation procedure is constructed to compare the seismic resilience of two different topologies, i.e. looped network and meshed network, of municipal water supply network in Lianyungang, China. The variation rules of resilience with the two different network topologies under different recovery conditions are also thoroughly investigated. The results show that the meshed network can improve the water supply performance, but it can’t effectively enhance the seismic resilience. Furthermore, the variation curve of resilience with recovery resource shows that an optimum value of recovery resource exists.
