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Eccentric-wing flutter stabilizer for bridges
Publikationstyp
Conference Paper
Date Issued
2016
Sprache
English
Author(s)
Institut
TORE-URI
Number in series
106
Start Page
435
End Page
440
Citation
IABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Report: 435-440 (2016)
Contribution to Conference
ISBN of container
978-3-85748-142-0
A device is presented that aims at preventing bridge flutter. It consists of wings positioned along the sides of, and fixed relative to, the bridge deck. Flutter suppression efficiency is high provided the lateral eccentricity of the wings is large. It is a passive aerodynamic device that is more economical than other passive measures or devices. Moreover, it does not contain moving parts. This is an advantage over devices with moving parts that meet resistance due to reliability concerns. Results of a numerical study are presented in which the critical wind speed for flutter onset of a bridge without wings and with wings mounted in various configurations were determined. Preliminary wind tunnel test results are reported and a cost estimate is given.
Subjects
Fixed wing
Flutter
Long-span bridge
Numerical study
Passive aerodynamic device
DDC Class
600: Technik
620: Ingenieurwissenschaften
720: Architektur