Summary
Ping‐An Finance Center (PAFC), with a total height of 600 m, is the fourth tallest building in the world. An integrated structural health monitoring (SHM) system with total number of 553 sensors, which was designed based on the modular design methodology, is being installed in PAFC to monitor its structural performance and external excitations during both construction and service stages. This paper first gives a brief introduction of the architecture of the SHM system, followed by detailed descriptions on its 7 subsystems, including the components, functions, and interrelationship corresponding to each subsystem. The modular design of the SHM system ensures highly effective operation of the comprehensive monitoring system, and such an extensible system allows the subsystems to be deployed and augmented easily to meet the evolving monitoring needs. The second part of this paper introduces the research activities and selected results from the SHM system equipped in PAFC, including monitoring of vertical deformations of various structural components, verification of effectiveness of active tuned mass damper systems, and verification of numerous damage identification methods. Finally, representative monitoring results from the SHM system in PAFC during a typhoon are presented and discussed. This paper aims to provide useful information for the SHM, construction, and design of super‐tall buildings.
Summary
This paper presents field measurement results of structural dynamic properties and wind‐induced responses of 600m‐high Ping‐An Finance Center in Shenzhen during the passage of Typhoon Haima. The field measurements included wind speed, wind direction, and structural acceleration responses during the typhoon. Analysis of the field measurements is carried out to investigate the wind‐induced structural vibrations and dynamic properties of the skyscraper under typhoon condition. In the analysis, natural frequencies and damping ratios of Ping‐An Finance Center are estimated using Peak‐Picking method, half‐power bandwidth method in frequency domain, and random decrement technique in time domain, respectively. Two band‐pass filtering methods, namely, elliptical filtering method and Kaiser‐window FIR filter, are adopted to deal with the measured acceleration signals. Consequently, the modal parameters identified with the Peak‐Picking, half‐power bandwidth, and random decrement technique methods are presented and discussed in detail. In addition, the probabilistic characteristics of the recorded acceleration responses are analyzed using the generalized extreme value distribution, and then the serviceability of the skyscraper during the typhoon is evaluated.
The cover image, by Qiusheng Li et al., is based on the Research Article Structural health monitoring for a 600'm high skyscraper, https://doi.org/10.1002/tal.1490.
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