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GPS in pioneering dynamic monitoring of long-period structures

Earthquake Spectra

By:
,
DOI: 10.1193/1.1461375

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Abstract

Global Positioning System (GPS) technology with 10-20-Hz sampling rates allows scientifically justified dynamic measurements of relative displacements of long-period structures. The displacement response of a simulated tall building in real time and permanent deployment of GPS units at the roof of a building are described. To the authors' best knowledge, this is the first permanent deployment of GPS units (in the world) for continuous dynamic monitoring of a tall building. Data recorded from the building during a windy day is analyzed to determine the structural characteristics. When recorded during extreme motions caused by earthquakes and strong winds, such measurements can be used to compute average drift ratios and changes in dynamic characteristics, and therefore can be used by engineers and building owners or managers to assess the structural integrity and performance by establishing pre-established thresholds. Such information can be used to secure public safety and/or take steps to improve the performance of the building.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
GPS in pioneering dynamic monitoring of long-period structures
Series title:
Earthquake Spectra
DOI:
10.1193/1.1461375
Volume
18
Issue:
1
Year Published:
2002
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Earthquake Spectra
First page:
47
Last page:
61
Number of Pages:
15