GPS in dynamic monitoring of long-period structures

Soil Dynamics and Earthquake Engineering



Global Positioning System (GPS) technology with high sampling rates (??? 10 samples per second) allows scientifically justified and economically feasible dynamic measurements of relative displacements of long-period structures-otherwise difficult to measure directly by other means, such as the most commonly used accelerometers that require post-processing including double integration. We describe an experiment whereby the displacement responses of a simulated tall building are measured clearly and accurately in real-time. Such measurements can be used to assess average drift ratios and changes in dynamic characteristics, and therefore can be used by engineers and building owners or managers to assess the building performance during extreme motions caused by earthquakes and strong winds. By establishing threshold displacements or drift ratios and identifying changing dynamic characteristics, procedures can be developed to use such information to secure public safety and/or take steps to improve the performance of the building. Published by Elsevier Science Ltd.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title GPS in dynamic monitoring of long-period structures
Series title Soil Dynamics and Earthquake Engineering
DOI 10.1016/S0267-7261(00)00094-4
Volume 20
Issue 5-8
Year Published 2000
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Soil Dynamics and Earthquake Engineering
First page 477
Last page 483