Estimation of maximum drift of mdof shear structures using only one accelerometer

Kangqian Xu, Akira Mita

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

This paper presents a new method to estimate maximum drifts, relative displacements between adjacent floors, of all stories of multi-degree-of-freedom (MDOF) shear structures using only one floor’s absolute acceleration time history response under the ground excitation. The absolute acceleration and relative displacement are formulated in modal coordinates and the state-space expression is derived. Then the numerical simulation for a three-story structure was conducted to verify the performance of the state-space equation. The comparison of the estimated state and input with actual values is made and shows the good agreement. In addition, the relative displacement time histories of all floors were obtained, and the errors of maximum displacements and inter-story drifts were analyzed. The robustness against environmental noise was also investigated by numerical simulations as well. The results of simulations indicate the estimation is satisfactory, and very robust against the environmental disturbance.

本文言語English
ホスト出版物のタイトルStructural Health Monitoring - 8th Asia Pacific Workshop on Structural Health Monitoring, 8APWSHM 2020, proceedings
編集者N. Rajic, M. Veidt, A. Mita, N. Takeda, W.K. Chiu
出版社Association of American Publishers
ページ113-120
ページ数8
ISBN(印刷版)9781644901304
DOI
出版ステータスPublished - 2021
イベント8th Asia-Pacific Workshop on Structural Health Monitoring, APWSHM 2020 - Cairns, Australia
継続期間: 2020 12 92020 12 11

出版物シリーズ

名前Materials Research Proceedings
18
ISSN(印刷版)2474-3941
ISSN(電子版)2474-395X

Conference

Conference8th Asia-Pacific Workshop on Structural Health Monitoring, APWSHM 2020
国/地域Australia
CityCairns
Period20/12/920/12/11

ASJC Scopus subject areas

  • 材料科学(全般)

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