Real-time fatigue life evaluation of steel suspension bridge

Petr Hradil, Ilkka Hakola

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

The paper demonstrates an experimental case of suspension bridge in Kirjalansalmi, Finland, where the real-time evaluation of the steel structure fatigue life was applied. The method uses pre-calculated stress ranges spectra in all joints from the finite element model calibrated to the results of test loads. Since the calculation runs directly on the computer collecting strain gauges measurements, the amount of data to be transported to the central database could be reduced significantly. The on-site computer is also configured as web-server and the fatigue life results are automatically updated on its web-page daily. However, the most computationally demanding part is the stress-ranges evaluation that iterates the whole history of strain measurement dating back to 2011.
Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management and Life Extension
EditorsAirong Chen, Dan M. Frangopol, Xin Ruan
PublisherCRC Press
Pages166- 71
ISBN (Electronic)978-1-315-76069-8
ISBN (Print)978-1-138-00103-9
DOIs
Publication statusPublished - 27 May 2014
MoE publication typeA4 Article in a conference publication
Event7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014 - Shanghai, China
Duration: 7 Jul 201411 Jul 2014

Conference

Conference7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014
Abbreviated titleIABMAS 2014
CountryChina
CityShanghai
Period7/07/1411/07/14

Fingerprint

Suspension bridges
Steel bridges
Fatigue of materials
Strain measurement
Steel structures
Strain gages
Websites
Servers

Keywords

  • bridge
  • monitoring
  • fatigue
  • steel
  • suspension

Cite this

Hradil, P., & Hakola, I. (2014). Real-time fatigue life evaluation of steel suspension bridge. In A. Chen, D. M. Frangopol, & X. Ruan (Eds.), Bridge Maintenance, Safety, Management and Life Extension (pp. 166- 71). CRC Press. https://doi.org/10.1201/b17063-19
Hradil, Petr ; Hakola, Ilkka. / Real-time fatigue life evaluation of steel suspension bridge. Bridge Maintenance, Safety, Management and Life Extension. editor / Airong Chen ; Dan M. Frangopol ; Xin Ruan. CRC Press, 2014. pp. 166- 71
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Hradil, P & Hakola, I 2014, Real-time fatigue life evaluation of steel suspension bridge. in A Chen, DM Frangopol & X Ruan (eds), Bridge Maintenance, Safety, Management and Life Extension. CRC Press, pp. 166- 71, 7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014, Shanghai, China, 7/07/14. https://doi.org/10.1201/b17063-19

Real-time fatigue life evaluation of steel suspension bridge. / Hradil, Petr; Hakola, Ilkka.

Bridge Maintenance, Safety, Management and Life Extension. ed. / Airong Chen; Dan M. Frangopol; Xin Ruan. CRC Press, 2014. p. 166- 71.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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N2 - The paper demonstrates an experimental case of suspension bridge in Kirjalansalmi, Finland, where the real-time evaluation of the steel structure fatigue life was applied. The method uses pre-calculated stress ranges spectra in all joints from the finite element model calibrated to the results of test loads. Since the calculation runs directly on the computer collecting strain gauges measurements, the amount of data to be transported to the central database could be reduced significantly. The on-site computer is also configured as web-server and the fatigue life results are automatically updated on its web-page daily. However, the most computationally demanding part is the stress-ranges evaluation that iterates the whole history of strain measurement dating back to 2011.

AB - The paper demonstrates an experimental case of suspension bridge in Kirjalansalmi, Finland, where the real-time evaluation of the steel structure fatigue life was applied. The method uses pre-calculated stress ranges spectra in all joints from the finite element model calibrated to the results of test loads. Since the calculation runs directly on the computer collecting strain gauges measurements, the amount of data to be transported to the central database could be reduced significantly. The on-site computer is also configured as web-server and the fatigue life results are automatically updated on its web-page daily. However, the most computationally demanding part is the stress-ranges evaluation that iterates the whole history of strain measurement dating back to 2011.

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Hradil P, Hakola I. Real-time fatigue life evaluation of steel suspension bridge. In Chen A, Frangopol DM, Ruan X, editors, Bridge Maintenance, Safety, Management and Life Extension. CRC Press. 2014. p. 166- 71 https://doi.org/10.1201/b17063-19