TITLE:
Coupling Analysis of Disaster Bearing Capacity of Urban Lifeline System Based on Brittleness Entropy
AUTHORS:
Wei Huang, Xinnan Zhang, Chenmin Li, Fengzhou Wang, Zhenli Ma
KEYWORDS:
Disaster Bearing Capacity, Lifeline System, System Coupling, Brittleness Entropy
JOURNAL NAME:
Computational Water, Energy, and Environmental Engineering,
Vol.3 No.3,
July
29,
2014
ABSTRACT: Urban or regional disaster bearing capacity mainly depends on the
disaster bearing capacity of lifeline systems. In the analysis of disaster
bearing capacity evaluation of lifeline system, we should not only investigate
the complexity, balance and reliability of network characteristics, but also
consider the relation between each subsystem. A new brittleness entropy of city
disaster vulnerability associated coupling analysis method is proposed based on
the brittleness of complex system theory. Correlation characteristics are
reflected and evaluated in the brittle link entropy and the whole lifeline
system, and then the vulnerability of city lifeline system can be quantified in
flood scenarios. As a result of the coupling analysis and calculation, power
system has the greatest effect among other subsystems. Because the key factors
and influence of water supply system are uncertainties, the water supply system
work or supply should be restored first after the disaster. The results show
that the method can provide the basis for the optimization of system management,
and control the repair work after disaster and coordination between subsystems.