Assessment of a multiple-span bridge by dynamic testing, in-situ monitoring and numerical modeling

Xinghua Chen, Piotr Omenzetter, Sherif Beskhyroun

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The structural condition assessment of highway bridges is largely based on the visual observations described by the subjective indices, and it is necessary to develop a methodology for accurate and reliable condition assessment of in-service bridges. In this paper, an approach to condition assessment of in-service bridges making use of dynamic testing, in-situ monitoring and analytical and/or numerical simulations is proposed and applied to the instrumented Newmarket Viaduct, a 12-span bridge located in Auckland, New Zealand. Both ambient dynamic tests in two states and structural health monitoring data measured on the Newmarket Viaduct are reported and analysed. A finite element model of the bridge is successfully verified by using the natural frequencies and mode shapes extracted from the measured data. In the future work, realize meaningful interpretation of monitoring data is aim at inferring the state of a structure. Also, the FE models for structures calibrated and refined using the various types of field testing and monitoring or measurements data will be used in structural analysis simulations, yielding more realistic results.
Original languageEnglish
Title of host publicationProceedings of the 4th International Conference on Integrity, Reliability and Failure
Number of pages11
Publication statusPublished - 23 Jun 2013
Event4th International Conference on Integrity, Reliability & Failure - Funchal, Portugal
Duration: 23 Jun 201327 Jun 2013


Conference4th International Conference on Integrity, Reliability & Failure

Bibliographical note

The authors would like to express their gratitude to their supporters. Research work at the University of Auckland was partially supported by the Earthquake Commission Research Foundation grant UNI/578. Piotr Omenzetter’s work within The LRF Centre for Safety and Reliability Engineering at the University of Aberdeen is supported by The Lloyd's Register Foundation (The LRF). The LRF supports the advancement of engineering-related education, and funds research and development that enhances safety of life at sea, on land and in the air. NGA Newmarket facilitated the field testing and monitoring system installation and operation, and New Zealand Transport Agency allowed the use of Newmarket Viaduct for research. Gewei Chen, Shahab Ramhormozian and Peifen Chua, research students at the University of Auckland, assisted with the ambient vibration tests.


  • bridge
  • dynamic testing
  • model updating
  • structural health monitoring


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