SHM of a Tall Building
Civil Engineering Applications
Published Online: 15 SEP 2009
Copyright © 2009 John Wiley & Sons, Ltd. All rights reserved.
Encyclopedia of Structural Health Monitoring
How to Cite
Brownjohn, J. M. W. and Pan, T.-C. 2009. SHM of a Tall Building. Encyclopedia of Structural Health Monitoring.
- Published Online: 15 SEP 2009
A long-term monitoring program on a 280-m 65-story office tower began in 1993 when Shimizu Corporation installed stress and strain gauges at the 18th story during construction. Manual static readings were combined with measurements of fundamental mode natural frequencies, and when the building was completed, a full vibration survey was undertaken, after which a remotely operated monitoring system was installed to track wind velocities along with accelerations at basement and roof levels. The system operated for 10 years, and in its final years global positioning system (GPS) receivers for tracking “absolute” displacements were included. The monitoring system showed gradual changes in building performance over time, but more importantly it provided valuable information about the nature of the dynamic loading experienced due to wind and earthquake. Using the building as a super sensor showed the significance of regional seismic hazard in comparison to the benign wind loading. The system also provided a platform for evaluating structural health monitoring technology including GPS, operational modal analysis, and data mining.
- tall building;
- vibration monitoring;