Reliability assessment of existing reinforced concrete bridges and viaducts through proof load testing

R. de Vries, E.O.L. Lantsoght, R.D.J.M. Steenbergen, S.A.A.M. Fennis

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

In the assessment of existing infrastructure performing only a desk study is often not sufficient to determine the structural reliability of a bridge or viaduct. For concrete structures gathering field data by performing a proof load test offers detailed information about the structural performance. However, the relation between the magnitude of the load and the structural reliability is not immediately clear. In the present study the challenges in determining the target load and the uncertainties that require attention are described. An approach is presented that addresses the time-dependent character of the structural reliability, the need for accurate stop-criteria, the knowledge level and spatial uncertainty. It is shown how both past traffic loads and a proof load test may contribute to the proven strength of a structure. The described methodology provides a starting point towards a flexible approach for proof load testing in which structure-specific information and requirements are considered.
Original languageEnglish
Title of host publicationIABMAS 2022: 11th International Conference on Bridge Maintenance, Safety and Management
Subtitle of host publicationMini-symposium: [MS05] Assessment of existing infrastructure assisted by field data
EditorsJoan Ramon Casas, Dan M. Frangopol, José Turmo
Number of pages8
DOIs
Publication statusPublished - 2022
Event11th International Conference on Bridge Maintenance, Safety and Management - Barcelona, Spain
Duration: 11 Jul 202215 Jul 2022
Conference number: 11

Conference

Conference11th International Conference on Bridge Maintenance, Safety and Management
Abbreviated titleIABMAS 2022
Country/TerritorySpain
CityBarcelona
Period11/07/2215/07/22

Keywords

  • Deterioration
  • time-dependence
  • reliability
  • proof loading
  • load testing
  • existing structures

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