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Displacement Estimation of a Skyscraper during Super Typhoon Mangkhut Based on Limited Measurements of Accelerations and Strains
| 题名： | Displacement Estimation of a Skyscraper during Super Typhoon Mangkhut Based on Limited Measurements of Accelerations and Strains |
| 正文语种： | eng |
| 作者： | Qi Zhou;Qiu-Sheng Li;Xu-Liang Han;Jun-Wen Wan;Kang Xu |
| 作者单位： | City Univ. of Hong Kong;City Univ. of Hong Kong;City Univ. of Hong Kong;Central South Univ.;Central South Univ. |
| 关键词： | Displacement estimation;Field measurement;Extreme wind conditions;High-rise buildings |
| 摘要： | 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 600-m-high 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. |
| 出版年： | 2023 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 149 |
| 期： | 10 |
| 页码： | 1.1-1.12 |
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