Vibration-based monitoring of a super tall building with TMD during typhoon Ampil

Siyuan Sun, Bin Yang, Qilin Zhang*, Siu Kui Au

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Shanghai Tower is currently the tallest building in China, equipped with a tuned mass damper (TMD), and situated in a typhoon-prone area. This study presents the findings of a vibration-based structural health monitoring system for continuously tracking the dynamic characteristics during a major typhoon event (Ampil Jul 2018). While previous studies manually categorized time history into three distinct periods (before, during, and after the typhoon), this study utilizes an Ordering-Points-To-Identify-Clustering-Structure clustering algorithm to divide the time history into four finer-grained time periods for more objective and automated decision. The dynamic characteristics of the building-TMD system in the four time periods are analyzed in both the time and frequency domains. In view of tracking continuity, and potential presence of spurious modes or omission of physical modes, a Bayesian approach that considers both reference modes and reference probability model is investigated.

Original languageEnglish
JournalStructural Health Monitoring
DOIs
Publication statusAccepted/In press - 2025
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Author(s) 2025.

ASJC Scopus Subject Areas

  • Biophysics
  • Mechanical Engineering

Keywords

  • modal tracking
  • Shanghai Tower
  • structural health monitoring
  • tall building
  • TMD
  • typhoon

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