Study on the Post-Earthquake Connectivity of Transportation System Network

Abstract eng:
This paper introduces the seismic reliability of transportation system components in earthquake, and the damage grade and its definition of the transportation system network in earthquake. According to the property of transportation system network, combined with graph theory and network analysis theories and methods, the transportation system network connectivity analysis model was constructed. The Warshall algorithm was used in the fuzzy mathematical manipulation, and the adjacency matrix was transformed, and the reachability matrix was obtained, so the connectivity of transportation system network can be decided by the reachability matrix, the detailed realization procedure and an illustration example were presented. The Monte Carlo stochastic simulation method for network reliability analysis was fully introduced in this paper. The network analysis for a given transportation network was conducted by using this method, and the system reliabilities with different earthquake excitations are obtained. The results provide a technical method for enhancing the transportation system earthquake resistance reliability, optimizing post-earthquake transportation system and determing post-earthquake emergency recovery plan and so on.

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