Operational modal analysis and continuous dynamic monitoring of high-rise building based on wireless distributed synchronized data acquisition system

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Hu, WH (Author) Other; Xu, ZM (Author) Other; Bian, XH (Author) Other; Tang, DH (Author) Other; Lu, W (Author) Other; Li, C (Author) Other; Teng, J (Author) Other; Cunha, A. (Author) FEUP

Journal

The Journal is awaiting validation by the Administrative Services.

Title: STRUCTURAL CONTROL & HEALTH MONITORING

Vol. 29

ISSN: 1545-2255

Indexing

ISI Web of Knowledge - 0 Citations

Scopus

Other information

Authenticus ID: P-00X-3D7

DOI: 10.1002/stc.3063

Abstract (EN): The paper mainly reports the structural dynamic behaviors of a skyscraper under operational conditions based on a wireless distributed synchronized data acquisition (WDSA) system. First, the WDSA system is developed to conveniently acquire the structural responses from a large and complex structure with the unified Global Navigation Satellite System (GNSS) time information. The phase synchronization accuracy of the WDSA method is validated by comparing the modal parameters estimated by both wired central data acquisition (WCA) and the WDSA systems. Subsequently, the dynamic properties of a skyscraper are presented by performing operational modal analysis (OMA) based on the proposed WDSA system. Finally, the WDSA-based continuous dynamic monitoring system is further developed to capture the long-term structural responses at different spatial positions. The structural dynamic behaviors of the skyscraper under normal wind, typhoon and earthquake conditions are reported. The structural whiplash effect under both normal wind and earthquake conditions are characterized by the acceleration-based accumulated contribution factor.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 31