Sustainability of highway bridge networks under seismic hazard

You Dong, Dan M. Frangopol, Duygu Saydam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

99 Citations (Scopus)


In order to evaluate the seismic risk of transportation networks, it is necessary to develop a methodology that integrates the probabilities of occurrence of seismic events in a region, the vulnerability of the civil infrastructure, and the consequences of the seismic hazard to the society, environment, and economy. In this article, a framework for the time-variant seismic sustainability and risk assessment of highway bridge networks is presented. The sustainability of the network is quantified in terms of its social, environmental, and economic metrics. These include the expected downtime, expected energy waste and carbon dioxide emissions, and the expected loss. The methodology considers the probability of occurrence of a set of seismic scenarios that reflect the seismic activity of the region. The performance of network links is quantified based on individual bridge performance evaluated through fragility analyses. The sustainability and risk depend on the damage states of both the links and the bridges within the network following an earthquake scenario. The time-variation of the sustainability metrics and risk due to structural deterioration is identified. The approach is illustrated on a transportation network located in Alameda County, California. S. Elnashai.
Original languageEnglish
Pages (from-to)41-66
Number of pages26
JournalJournal of Earthquake Engineering
Issue number1
Publication statusPublished - 2 Jan 2014
Externally publishedYes


  • Bridge Networks
  • Life-Cycle Analysis
  • Seismic Risk Assessment
  • Seismic Vulnerability
  • Structural Deterioration
  • Sustainability

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology


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