Structural health monitoring of long suspension bridges: A test-bed

Y. L. Xu, X. H. Zhang, S. Zhan, X. J. Hong, L. D. Zhu, Yong Xia, Songye Zhu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)


Comprehensive structural health monitoring systems have been developed and installed in several long suspension bridges in the world aiming to monitor structural health conditions of the bridges in real time. Nevertheless, many key issues remain unsolved as how to take full advantage of the health monitoring system for effective and reliable damage detection of such complex structures. A test-bed is therefore established by the authors in a laboratory to allow researchers to realize rational damage scenarios, to apply different sensors and sensing networks, and to test various damage detection algorithms. This paper first introduces the design principles of a laboratory-based test-bed, which mainly comprises a delicate physical model and an updated finite element model of a long suspension bridge. The physical model was designed with reference to a long suspension bridge in Hong Kong with a length scale of 1: 150. The paper then presents details in the design and setup of the physical bridge model with various damage scenarios considered. The modal tests and the geometric measurements were subsequently carried out on the physical bridge model to identify this dynamic characteristics and geometric configuration respectively. The finite element modeling of the physical bridge model was finally established, followed by a finite element model updating in terms of the measured modal properties. This test-bed is expected to serve a benchmark problem for structural health monitoring of long suspension bridges.
Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Structural Dynamics, EURODYN 2011
PublisherUniversity of Southampton, Institute of Sound Vibration and Research
Number of pages8
ISBN (Electronic)9789076019314
Publication statusPublished - 1 Jan 2011
Event8th International Conference on Structural Dynamics, EURODYN 2011 - Leuven, Belgium
Duration: 4 Jul 20116 Jul 2011


Conference8th International Conference on Structural Dynamics, EURODYN 2011


  • Finite element model
  • Long suspension bridge
  • Physical model
  • Structural health monitoring
  • Test-bed

ASJC Scopus subject areas

  • Hardware and Architecture
  • Computer Networks and Communications
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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