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Seismic safety of lifelines—an optimum design method

Authors
Journal
Structural Safety
0167-4730
Publisher
Elsevier
Publication Date
Volume
2
Issue
4
Identifiers
DOI: 10.1016/0167-4730(85)90016-5
Keywords
  • Earthquake
  • Earthquake Sources
  • Lifeline Systems
  • Networks
  • Optimization
  • Probability
  • Reliability
  • Safety
  • Seismic Hazard
Disciplines
  • Design

Abstract

Abstract Lifeline systems are vulnerable to two types of hazards arising from potential earthquake sources. These are the hazard of a fault-rupture strike on elements of a lifeline system and the hazard of overstress induced in different elements of the system because of the ground vibration. An optimum design method is presented in this paper for the design of a lifeline system for a maximum accepted probability of failure because of any of the two modes of failure. The method may be used to determine an optimum path between a number of fixed points which represent supply or demand stations in the system.

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