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Flutter derivatives of the Kao-Pin Hsi cable-supported bridge
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SYSNO ASEP 0453617 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Flutter derivatives of the Kao-Pin Hsi cable-supported bridge Author(s) Buljac, A. (HR)
Pospíšil, Stanislav (UTAM-F) RID, SAI, ORCID
Kozmar, H. (HR)
Kuznetsov, Sergeii (UTAM-F) RID, SAI
Král, Radomil (UTAM-F) RID, SAINumber of authors 5 Source Title Applied Mechanics and Materials, 821 - Engineering Mechanics 2015. - Zürich : Trans Tech Publications Inc, 2016 / Fischer C. - ISSN 1660-9336 - ISBN 978-3-03835-700-1 Pages s. 172-179 Number of pages 8 s. Publication form Print - P Action Engineering mechanics 2015 /21./ Event date 11.05.2015-14.05.2015 VEvent location Svratka Country CZ - Czech Republic Event type WRD Language eng - English Country CH - Switzerland Keywords bridge-deck section ; vibrations ; aeroelasticity ; flutter derivatives ; wind-tunnel experiments Subject RIV JM - Building Engineering R&D Projects GA15-01035S GA ČR - Czech Science Foundation (CSF) LO1219 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UTAM-F - RVO:68378297 DOI 10.4028/www.scientific.net/AMM.821.172 Annotation Long-span cable-supported bridges, characterized with low natural frequencies and
mechanical damping, are very sensitive to wind effects. Therefore, investigation of the aeroelastic
behaviour of bridges is particularly important when designing these complex engineering structures.
The focus is on evaluation of dimensionless aeroelastic coefficients, i.e. flutter derivatives, which
are considered as indicators of the aeroelastic stability of bridges. A comprehensive experimental
study on dynamic wind-induced behaviour of the Kao-Pin Hsi Bridge in Taiwan is carried out in the
Climatic Wind Tunnel of the Centre of Excellence Telč (CET), Czech Republic. The bridge-deck
section is tested at a multipurpose experimental setup originally developed in the CET. Flutter
derivatives are obtained by the means of the free-vibration technique for the double-degree-offreedom
(DDOF) system. The results are compared to those of a thin flat plate with large width to
height ratio, which previously proved to be stable with respect to the flutter phenomenon. While the
torsional instability is observed for the Kao-Pin Hsi bridge-deck section, the flat plate proves to be
aeroelastically stable.Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2016
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