Time-variant risk of aging bridges under seismic mainshock followed by aftershocks

You Dong, D. M. Frangopol, S. Sabatino

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


Civil infrastructure plays an important role in both economic and societal sustainable development. Within a life-cycle context, structural systems may be subjected to abnormal events and decisions regarding the functionality of these systems should be made in order to meet societal needs. In this paper, a framework for the seismic performance assessment of highway bridges under mainshock and aftershock sequences is presented. The time effects associated with the mainshock and aftershock events are integrated within the proposed seismic risk assessment procedure. Overall, the risk assessment of a bridge under seismic activity is based on a set of damage states, which are mutually exclusive and collectively exhaustive. Additionally, the time-variant risk associated with repair loss and functionality of a bridge subject to mainshock followed by aftershocks are presented. The proposed methodology is illustrated on a bridge located in California, USA.
Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014
PublisherTaylor and Francis - Balkema
Number of pages7
ISBN (Print)9781138001039
Publication statusPublished - 1 Jan 2014
Externally publishedYes
Event7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014 - Shanghai, China
Duration: 7 Jul 201411 Jul 2014


Conference7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Civil and Structural Engineering

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