光ファイバ変位センサによる高層ビルのヘルスモニタリング

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タイトル別名
  • Health Monitoring of High-Rise Building with Fiber Optic Deformation Sensor
  • ヒカリ ファイバ ヘンイ センサ ニ ヨル コウソウ ビル ノ ヘルス モニタリング

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Structural health monitoring is becoming more and more important in the domain of civil engineering as a proper mean to increase the safety and to verify design strategies. In many civil structures, the deformations are the most relevant parameter to be monitored. A complete understanding of the structure's behavior requires the measurement of deformations based on long-gage sensors. A monitoring technology, based on the use of long-gage fiber optic deformation sensors has been applied to a 33-floors tall building in Tokyo. Sensors were installed on the 2nd floor's steel columns of the building in order to monitor elastic strain evolutions at the early stage of construction. The installed sensors were dynamic compatible ones which enable both static and dynamic measurements. The monitoring was initiated on May 18th, 2005 and has been performed during the whole lifespan of the building. The results of the monitoring have been showing high performance of the measurement system.

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