[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.12989/sss.2015.16.5.873

Quasi real-time post-earthquake damage assessment of lifeline systems based on available intensity measure maps

Torbol, Marco (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology)

Publication Information

Smart Structures and Systems / v.16, no.5, 2015 , pp. 873-889 More about this Journal

Abstract

In civil engineering, probabilistic seismic risk assessment is used to predict the economic damage to a lifeline system of possible future earthquakes. The results are used to plan mitigation measures and to strengthen the structures where necessary. Instead, after an earthquake public authorities need mathematical models that compute: the damage caused by the earthquake to the individual vulnerable components and links, and the global behavior of the lifeline system. In this study, a framework that was developed and used for prediction purpose is modified to assess the consequences of an earthquake in quasi real-time after such earthquake happened. This is possible because nowadays entire seismic regions are instrumented with tight networks of strong motion stations, which provide and broadcast accurate intensity measure maps of the event to the public within minutes. The framework uses the broadcasted map and calculates the damage to the lifeline system and its component in quasi real-time. The results give the authorities the most likely status of the system. This helps emergency personnel to deal with the damage and to prioritize visual inspections and repairs. A highway transportation network is used as a test bed but any lifeline system can be analyzed.

Keywords

seismic risk; safety & reliability; lifeline systems; distributed systems;

Citations & Related Records

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