Influence of vehicles on bridge flutter and galloping

Kozmar, Hrvoje and Pospišil, Stanislav and Buljac, Andrija and Kuznetsov, Sergey (2015) Influence of vehicles on bridge flutter and galloping. = Influence of vehicles on bridge flutter and galloping. In: Symposium on Progress in Wind Engineering and Structural Dynamics 2015, 01.-02.11.2015., New Taipei City, Taiwan.

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Abstract

The paper describes the modifications of bridge aeroelastic behaviour due to stationary vehicles on the deck. Aerodynamic force coefficients, as well as aeroelastic flutter derivatives, obtained by the free-vibration technique, are analyzed for the Kao-Pin Hsi Bridge in Taiwan. When considering static response, vehicles are observed to change aerodynamic coefficients of the bridge, especially in case of torsional coefficient. When considering one degree of freedom motion of the bridge-deck section, empty bridge without the vehicles proved to be more prone to torsional flutter than bridge with various arrangements of the vehicles. For two degrees of freedom system, non-moving vehicles are observed to have an adverse effect on the bridge stability. This is particularly exhibited in the experiment with the vehicles placed in the leeward traffic lanes of the bridge. At last, galloping sensitivity is not much influenced by the presence of vehicles.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): vehicle-wind-bridge system; aeroelastic derivatives
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 1400 Department of fluid mechanics > 1420 Chair of environment and construction aerodynamics
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 08 Mar 2017 14:10
Last Modified: 06 Jun 2017 07:43
URI: http://repozitorij.fsb.hr/id/eprint/7545

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