A case study in quantifying the economic benefit of a live strain monitoring campaign for a short-span pre-stressed concrete bridge

Piotr Omenzetter, Pilate Moyo, James M.W. Brownjohn

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Abstract

A short-span pre-stressed concrete bridge was the subject of several in-situ experimental investigations and analyses including experimental modal analyses and continuous live strain monitoring campaigns. Data from the latter was used to examine whether the cost of carrying the monitoring exercise can be justified by a tangible reduction in the risk of structural failure as assessed with the benefit of the data. To that end, the bridge risk was quantified initially using structural reliability methods and loads mandated by a design code but without any information from monitoring, and then the risk assessment was repeated with the measured strain data incorporated into the process. The comparison of the two risk values enabled quantifying the value of information derived from structural health monitoring, which was found to bring an overall net benefit.

Original languageEnglish
Publication statusPublished - Jul 2018
Event9th European Workshop on Structural Health Monitoring, EWSHM 2018 - Manchester, United Kingdom
Duration: 10 Jul 201813 Jul 2018

Conference

Conference9th European Workshop on Structural Health Monitoring, EWSHM 2018
CountryUnited Kingdom
CityManchester
Period10/07/1813/07/18

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Keywords

  • civil engineering
  • concrete
  • probability of detection
  • vibration analysis and testing

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture

Cite this

Omenzetter, P., Moyo, P., & Brownjohn, J. M. W. (2018). A case study in quantifying the economic benefit of a live strain monitoring campaign for a short-span pre-stressed concrete bridge. Paper presented at 9th European Workshop on Structural Health Monitoring, EWSHM 2018, Manchester, United Kingdom. https://www.ndt.net/search/docs.php3?showForm=off&id=23292