System Study of Urban Response and Reconstruction due to Earthquake

Autor: Frank Kozin, Huakang Zhou
Rok vydání: 1990
Předmět:
Zdroj: Journal of Engineering Mechanics. 116:1959-1972
ISSN: 1943-7889
0733-9399
DOI: 10.1061/(asce)0733-9399(1990)116:9(1959)
Popis: The functioning of lifeline systems after a major earthquake is critical to the modern urban center. A system study of lifeline response to catastrophic earthquakes is the essential prerequisite for the emergency management authority to form a mitigation and reconstruction plan to minimize the total loss caused by the earthquake. This paper develops an applied formulation of lifeline-restoration processes in the post-earthquake period, on the basis of a discrete-state, discrete-time Markov process. There are a finite number of damaged lifelines that each require a resource for reconstruction. The lifelines have values associated with their functioning capacity. We wish to assign limited resources to lifelines so as to minimize the total loss caused by malfunction of damaged lifelines. Dynamic programming is used to optimize the distribution of limited reconstruction resources. By computer simulation, various scenarios are examined, and useful information that is important to the emergency management authority is obtained.
Databáze: OpenAIRE