Damage detection using the position of neutral axis

D. H. Sigurdardottir, B. Glisic

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The centroid of stiffness is a universal parameter and its position in a cross-section can be evaluated for any load-carrying beam structure as the position of the neutral axis under conveniently chosen loads. Damage to structure or some other unusual behaviors affect the position of the centroid of stiffness at the location of its occurrence. Thus, a change in the position of the neutral axis within a cross-section can indicate change in the position of the centroid of stiffness, i.e., damage or other unusual structural behaviors. A damage detection method based on the changes in the position of the neutral axis is researched and discussed in this paper. Long-gauge strain data from two existing structures were used to validate the method and assess its performance: Streicker Bridge at Princeton University and the US202/NJ23 highway overpass in Wayne, NJ. The paper presents the method and the results from real applications.

Original languageEnglish (US)
Title of host publicationBridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014
PublisherTaylor and Francis - Balkema
Pages2698-2705
Number of pages8
ISBN (Print)9781138001039
DOIs
StatePublished - 2014
Event7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014 - Shanghai, China
Duration: Jul 7 2014Jul 11 2014

Publication series

NameBridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014

Other

Other7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014
CountryChina
CityShanghai
Period7/7/147/11/14

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

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  • Cite this

    Sigurdardottir, D. H., & Glisic, B. (2014). Damage detection using the position of neutral axis. In Bridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014 (pp. 2698-2705). (Bridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014). Taylor and Francis - Balkema. https://doi.org/10.1201/b17063-404