The integration of bridge life cycle cost analysis and the value of structural health monitoring information

Guangli Du, Jianjun Qin

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Life cycle cost (LCC) is a vital economic evaluation tool for effective asset management towards sustainability. Especially for bridges, their maintenance and operation cost overwhelms the cost from any other stage. One obstacle in the current bridge LCC implementation is the inherent uncertainties for the input parameters. That is, without knowing the structural performance, most of the existing LCC models are only established based on the assumptions of various life cycle parameters. For instance, the remaining ser-vice life (RSL) of structural components, a key input in LCC, is highly related to the bridge deterioration process but often assumed deterministically in bridge LCC. With the advent of advanced structural health monitoring (SHM) techniques, the structural performance can be observed from the real-time monitoring data, whereas the structural RSL can also be estimated. Here, a recognized issue is that, the trade-off between the benefit and the cost of installing the monitoring system is rarely considered in the existing bridge LCC practice, i.e. the value of information (VoI). Hence, the present paper proposes an improved LCC framework with an illustrative case study, taking account of both of the structural deterioration mechanism and the quantification of the value the SHM information.
Original languageEnglish
Title of host publicationLife Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision : Proceedings of the Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018), 28-31 October 2018, Ghent, Belgium
EditorsRobby Caspeele, Luc Taerwe, Dan M. Frangopol
Number of pages8
Place of PublicationGhent, Belgium
PublisherCRC Press
Publication date29 Oct 2018
Pages2113-2120
ChapterSS10: Life-Cycle of Civil Engineering Systems
ISBN (Print)9781138626331
ISBN (Electronic)9781351857574
DOIs
Publication statusPublished - 29 Oct 2018
EventThe Sixth International Symposium on Life-Cycle Civil Engineering - Ghent, Belgium
Duration: 28 Oct 201831 Oct 2018
Conference number: 6
http://www.ialcce2018.org/#/home

Conference

ConferenceThe Sixth International Symposium on Life-Cycle Civil Engineering
Number6
Country/TerritoryBelgium
CityGhent
Period28/10/201831/10/2018
Internet address
SeriesLife-Cycle of Civil Engineering Systems

Keywords

  • Structural health monitoring
  • value of information
  • Bayesian Decision Theory
  • life cycle cost

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