Optimized sensor location for estimating story-drift angle for tall buildings subject to earthquakes

Sayuki Ozawa, Akira Mita

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

Structural Health Monitoring (SHM) is a technology that can evaluate the extent of the deterioration or the damage of the building quantitatively. Most SHM systems utilize only a few sensors and the sensors are placed equally including the roof. However, the location of the sensors has not been verified. Therefore, in this study, the optimal location of the sensors is studied for estimating the inter-story drift angle which is used in immediate diagnosis after an earthquake. This study proposes a practical optimal sensor location method after testing all the possible sensor location combinations. From the simulation results of all location patterns, it was proved that placing the sensor on the roof is not always optimal. This result is practically useful as it is difficult to place the sensor on the roof in most cases. Modal Assurance Criterion (MAC) is one of the practical optimal sensor location methods. I proposed MASS Modal Assurance Criterion (MAC∗) which incorporate the mass matrix of the building into the MAC. Either the mass matrix or the stiffness matrix needs to be considered for the orthogonality of the mode vectors, normal MAC does not consider this condition. The location of sensors determined by MAC∗ was superior to the previous method, MAC. In this study, an important knowledge of the location of sensors was provided for implementing SHM systems.

本文言語English
ホスト出版物のタイトルHealth Monitoring of Structural and Biological Systems 2016
出版社SPIE
9805
ISBN(電子版)9781510600461
DOI
出版ステータスPublished - 2016
イベントHealth Monitoring of Structural and Biological Systems 2016 - Las Vegas, United States
継続期間: 2016 3 212016 3 24

Other

OtherHealth Monitoring of Structural and Biological Systems 2016
国/地域United States
CityLas Vegas
Period16/3/2116/3/24

ASJC Scopus subject areas

  • 応用数学
  • コンピュータ サイエンスの応用
  • 電子工学および電気工学
  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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