Long-term health monitoring of a box-girder bridge

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


研究成果: Paper査読


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.

出版ステータスPublished - 2008
イベント11th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC-11 - Taipei, Taiwan, Province of China
継続期間: 2008 11月 192008 11月 21


Other11th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC-11
国/地域Taiwan, Province of China

ASJC Scopus subject areas

  • 土木構造工学
  • 建築および建設


「Long-term health monitoring of a box-girder bridge」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。