Uncertainty in determination of neutral axis of a steel stringer bridge

D. Sigurdardottir, Branko 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 a position of the neutral axis under conveniently chosen loads. 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., unusual structural behaviors. This paper proposes a monitoring method for steel stringer bridges based on the change in position of the neutral axis. Monitoring data from the US202/NJ23 highway overpass inWayne, NJ is used to validate the method. The results show that the neutral axis location is varying even when damage is not present. Reasons for this variation are determined and the uncertainty in the evaluation assessed. Consequently, the method presented in this paper is applicable to a large variety of typical structures.

Original languageEnglish (US)
Title of host publicationSafety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
Pages2429-2436
Number of pages8
StatePublished - Dec 1 2013
Event11th International Conference on Structural Safety and Reliability, ICOSSAR 2013 - New York, NY, United States
Duration: Jun 16 2013Jun 20 2013

Publication series

NameSafety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013

Other

Other11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
CountryUnited States
CityNew York, NY
Period6/16/136/20/13

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Uncertainty in determination of neutral axis of a steel stringer bridge'. Together they form a unique fingerprint.

  • Cite this

    Sigurdardottir, D., & Glisic, B. (2013). Uncertainty in determination of neutral axis of a steel stringer bridge. In Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013 (pp. 2429-2436). (Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013).