Long-term health monitoring of a box-girder bridge

K. Suzuki*, C. Miki, K. Ono, A. Tanabe

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review


Bridge monitoring system is required to grasp structural deterioration and damage modes accurately. In order to achieve structural health monitoring, it is important to utilize the effective information given from the obtained in-situ data of the acting external disturbance and the responses. This study fully analyzes monitoring data acquired over three years in a box-girder bridge with an orthotropic steel deck, and then clears static changes between temperature and bridge responses, besides examines dynamic responses at the time of earthquake. The data derives a lot of useful engineering information. The bearing responses due to thermal condition remain solid over three years. As for the data during an earthquake, the strain responses and bearing displacement in each part behaves in different phases in the initial stage, after that they gradually synchronize and converge to the condition as observed before the earthquake. By utilizing static data into condition monitoring during the earthquake, it is obviously indicated that residual strain or displacement has not been arisen. The bridge health condition is judged as changeless before and after the earthquake.

Original languageEnglish
Publication statusPublished - 2008
Externally publishedYes
Event11th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC-11 - Taipei, Taiwan, Province of China
Duration: 2008 Nov 192008 Nov 21


Other11th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC-11
Country/TerritoryTaiwan, Province of China


  • Box-girder bridge
  • Earthquake
  • Health monitoring
  • Orthotropic steel deck
  • Thermal deformation
  • Weigh-in-Motion

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction


Dive into the research topics of 'Long-term health monitoring of a box-girder bridge'. Together they form a unique fingerprint.

Cite this