Displacement Estimation of a Skyscraper during Super Typhoon Mangkhut Based on Limited Measurements of Accelerations and Strains
Publication: Journal of Structural Engineering
Volume 149, Issue 10
Abstract
This paper develops a horizontal displacement estimation framework for wind-excited high-rise buildings based on limited measurements of accelerations and strains and applies it to reconstruct the displacement responses of a skyscraper in Shenzhen, China, during Super Typhoon Mangkhut on September 16, 2018. A field measurement study was conducted to verify the reliability and effectiveness of the framework based on the acceleration and strain responses of the skyscraper during Typhoon Kompasu. Then, the horizontal displacements of the skyscraper during the passage of Mangkhut were reconstructed by the framework based on the measurements of accelerations at one floor and strain responses at four floors, and the accuracy of the reconstructed displacement responses was subsequently validated in both time and frequency domains. In the final, the along-wind and across-wind responses as well as the resonant and background components of the reconstructed displacements during the extreme typhoon event were investigated. This paper aims to provide useful information for structural health monitoring and wind-resistant design of supertall buildings in tropical cyclone-prone regions.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The work described in this paper was fully supported by grants from the Research Grants Council of Hong Kong Special Administrative Region (Grant Nos. CityU 11207519 and CityU 11206922) and City University of Hong Kong (Grant Nos. 7005770 and 9667237).
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Published In
Journal of Structural Engineering
Volume 149 • Issue 10 • October 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Oct 5, 2022
Accepted: May 12, 2023
Published online: Aug 12, 2023
Published in print: Oct 1, 2023
Discussion open until: Jan 12, 2024
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