Dynamic Behavior of Super High-Rise Building: Deployment of Smart Monitoring System and Analysis
Publication: Journal of Structural Engineering
Volume 146, Issue 4
Abstract
Unprecedented high-rise buildings pose new challenges for earthquake engineering. Full-field structural health monitoring (SHM) systems have flourished to address these challenges. In this study, a smart SHM system with 46 sensors installed on 15 floors of the 492-m-high Shanghai World Financial Center (SWFC) in China was developed. The efficiency of the system was validated through analysis of the dynamic characteristics of the tall building using measured data from a 7.2 M earthquake event that occurred in the East China Sea. Subsequently, emphasis was placed on analyzing the dynamic characteristics of the SWFC under the action of an earthquake in terms of time-history responses and identification of frequency and damping ratios, amplitude spectral ratios, and mode shapes based on the data observed from the system. This study not only advances our understanding of the development of full-scale monitoring systems for super high-rise buildings but also provides results that can be referred to by researchers and engineers involved in the design and management of high-rise buildings.
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Acknowledgments
The authors appreciate the use of the full-scale testing facility, as well as the technical assistance provided by staff, of the Shanghai Earthquake Administration. The authors also appreciate the scientific research funding provided by the 111 Project of China (Grant No. B18062), Fundamental Research Funds for the Central Universities (Project No. 2019CDXYTM0032), Institute of Engineering Mechanics of the China Earthquake Administration (Funding No. 2017D05), Natural Science Foundation of China (Grant Nos. 51908090, 51708074 and 51579227), Key project of Technological Innovation and Application Development in Chongqing (Grant No. cstc2019jscx-gksb0188), and the Natural Science Foundation of Chongqing, China (cstc2019jcyj-msxm0639).
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Published In
Journal of Structural Engineering
Volume 146 • Issue 4 • April 2020
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©2020 American Society of Civil Engineers.
History
Received: Aug 21, 2018
Accepted: Aug 28, 2019
Published online: Feb 3, 2020
Published in print: Apr 1, 2020
Discussion open until: Jul 3, 2020
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