Abstract
Issues regarding occupancy comfort in vibration-sensitive structures are the motivation of this study concerning windinduced
vibrations in the European Court Towers in Luxembourg. In one of the two identical towers tuned liquid dampers
(TLD) have been installed. Recent studies investigate the changes in the dynamic behavior of the artificially damped tower,
before and after the activation of TLD's. This paper widens these investigations and exploits the benefit of having
two similar full-scale structures with dissimilar damping characteristics. The main subject of interest in the investigation is
the difference in vibration level as well as the modal damping ratios of the towers at various excitation levels. The experimental
measurements that form the basis of this paper were conducted during a period of two weeks in the fall of 2010.
The modal parameters are extracted using operational modal analysis at different wind speeds and directions. This paper presents
the experimental setup and the results of the analysis regarding the differences in response and modal damping ratios of
the two towers under varying excitation levels.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the SEM IMAC XXX Conference |
| Publication date | 2012 |
| Publication status | Published - 2012 |
| Event | SEM IMAC XXX Conference: 30 Years of Modal Analysis From the Laboratory to the Real World - Jacksonville, United States Duration: 30 Jan 2012 → 2 Feb 2012 Conference number: 30 |
Conference
| Conference | SEM IMAC XXX Conference |
|---|---|
| Number | 30 |
| Country/Territory | United States |
| City | Jacksonville |
| Period | 30/01/2012 → 02/02/2012 |