Seismic Performance Analysis Of Lifeline Systems
Author(s)
M. Faraji & J. Kiyono
Abstract
Seismic risk assessment of lifelines is considerably more complicated than that
of a single structure on account of the geographical spread of lifelines. Lifeline
risk assessment requires knowledge about ground-motion intensities at multiple
sites. This study considers the seismic performance analysis of lifeline network
systems. Seismic damage estimates of the potable water and electric power
networks of the Bam city will be calculated for the expected earthquake scenario
and the results will be utilized to assess the performances of the topological
models of the networks. The study will first include collection of lifeline utility
network data in GIS format. Seismic damage analysis will be made by defining
fragilities of the network components and the ground motions generated by the
scenario earthquake. The damage estimates will be utilized in the post-seismic
state of the networks for disaster management countermeasures and activities.
Keywords: lifelines, seismic performance, risk assessment, fragility curve,
probabilistic.
1 Introduction
Lifelines are the systems that relate to daily life needs, like water-supply, power,
telecom, traffic, gas-supply, sewage and heat-supply, and so on. Strong
dependence on lifeline system is one of the distinctive characteristics of modern
urban area. The issue of vulnerability of critical infrastructures has recently
attracted considerable attention from both the academic and policy-making
spheres. A systematic method for addressing risk assessment and risk
management is the, so-called, Probabilistic Risk Analysis (PRA), which
concerns the performance of a complex system in order to understand likely
outcomes and its areas of importance. PRA has historically been developed for
situations in which measured data about the overall reliability of a system are
Keywords
lifelines, seismic performance, risk assessment, fragility curve,
probabilistic
Related Book
Other papers in this volume
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