Realtime 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 a numerical evaluation of strains and deflections measured on steel suspension bridge in Kirjalansalmi in Finland to obtain the estimation of structure's fatigue life. The software developed in VTT calculates also weights, speeds and positions of passing vehicles from the measured data. The fatigue life prediction method uses pre-calculated stress ranges spectra in all joints from the finite element model calibrated to the results of test loads. Since the calculations run directly 011 the computer collecting strain gauges and deflections 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
Subtitle of host publication Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014
PublisherTaylor & Francis
Pages156
ISBN (Print)978-113800103-9
Publication statusPublished - 2014
MoE publication typeNot Eligible
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
Strain gages
Websites
Servers

Cite this

Hradil, P., & Hakola, I. (2014). Realtime fatigue life evaluation of steel suspension bridge. In Bridge Maintenance, Safety, Management and Life Extension: Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014 (pp. 156). Taylor & Francis.
Hradil, Petr ; Hakola, Ilkka. / Realtime fatigue life evaluation of steel suspension bridge. Bridge Maintenance, Safety, Management and Life Extension: Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014. Taylor & Francis, 2014. pp. 156
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Hradil, P & Hakola, I 2014, Realtime fatigue life evaluation of steel suspension bridge. in Bridge Maintenance, Safety, Management and Life Extension: Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014. Taylor & Francis, pp. 156, 7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014, Shanghai, China, 7/07/14.

Realtime fatigue life evaluation of steel suspension bridge. / Hradil, Petr; Hakola, Ilkka.

Bridge Maintenance, Safety, Management and Life Extension: Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014. Taylor & Francis, 2014. p. 156.

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

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Hradil P, Hakola I. Realtime fatigue life evaluation of steel suspension bridge. In Bridge Maintenance, Safety, Management and Life Extension: Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014. Taylor & Francis. 2014. p. 156