Dynamic performance estimation of tall buildings based on wavelet analysis and output only identification

K. Ichimura, H. Kameda, A. Mita

研究成果: Conference contribution

抄録

Structural health monitoring (SHM) has become an important technology due to numerous design and construction malpractice scandals which have occurred and the seismic damage of related structures. For the practical use of SHM, the ability to accurately estimate the state of structures is becoming very important. This study focuses on the determination of the modal parameters based on output only measurements. If an input is excited randomly, Random Decrement Technique (RDT) is applied to separate the random responses from the determination free vibrations. This algorithm is very simple, but RDT needs band-pass filtering procedure to decouple the multi modal component to single modal component. In order to overcome the weakness of RDT, the method which integrates RDT and wavelet transform (WT) is proposed. WT is used as time-frequency representation for the determination of modal parameters of structures and can decouple the modal components automatically.

本文言語English
ホスト出版物のタイトルProceedings of the 5th European Workshop - Structural Health Monitoring 2010
ページ919-924
ページ数6
出版ステータスPublished - 2010 12 1
イベント5th European Workshop on Structural Health Monitoring 2010 - Naples, Italy
継続期間: 2010 6 282010 7 4

出版物シリーズ

名前Proceedings of the 5th European Workshop - Structural Health Monitoring 2010

Other

Other5th European Workshop on Structural Health Monitoring 2010
国/地域Italy
CityNaples
Period10/6/2810/7/4

ASJC Scopus subject areas

  • 土木構造工学
  • 安全性、リスク、信頼性、品質管理

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