Risk assessment methodology for bridges based on element condition ratings considering different maintenance strategies

D. Saydam, D. M. Frangopol, You Dong

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

1 Citation (Scopus)

Abstract

Risk-based performance measures provide effectiveness in decision making by combining the probability of structural failure with the consequences of this event. This paper presents a risk assessment methodology for bridges using bridge element condition ratings considering different maintenance strategies. The risk is quantified in terms of expected losses. A reliability-based approach is implemented to compute the component and system failure probabilities. Unlike the common risk assessment approaches, the methodology accounts for possible different levels of component deterioration at any time instant and their probabilities. The Pontis element condition rating system is used to represent these levels.An approach for comparison of different maintenance strategies for bridge components is presented. The maintenance strategies are represented as the actions that improve the component ratings repetitively in time. The expected loss associated with different maintenance strategies and the expected cost of these maintenance strategies are quantified through the lifetime of bridge structures. The approach is illustrated on a highway bridge.
Original languageEnglish
Title of host publicationSafety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
Pages3593-3599
Number of pages7
Publication statusPublished - 1 Dec 2013
Externally publishedYes
Event11th International Conference on Structural Safety and Reliability, ICOSSAR 2013 - New York, NY, United States
Duration: 16 Jun 201320 Jun 2013

Conference

Conference11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
CountryUnited States
CityNew York, NY
Period16/06/1320/06/13

ASJC Scopus subject areas

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

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