Russian Journal of Transport Engineering
Russian journal of transport engineering
           

2019, Vol. 6, No. 3. - go to content...

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DOI: 10.15862/06SATS319 (https://doi.org/10.15862/06SATS319)

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Kozichev A.V., Paryshev S.E., Strelkov K.S., Shustikova A.A., Teperin L.L. Investigation of aeroelastic stability of two bridges under interference conditions. Russian Journal of Transport Engineering. 2019; 6(3). Available at: https://t-s.today/PDF/06SATS319.pdf (in Russian). DOI: 10.15862/06SATS319


Investigation of aeroelastic stability of two bridges under interference conditions

Kozichev Andrei Valerievich
The central aerohydrodynamic institute named after N.E. Zhukovsky, Zhukovsky, Russia
E-mail: andreikozichev@mail.ru

Paryshev Sergei Emilevich
The central aerohydrodynamic institute named after N.E. Zhukovsky, Zhukovsky, Russia
E-mail: sergei.paryshev@tsagi.ru

Strelkov Konstantin Sergeevich
The central aerohydrodynamic institute named after N.E. Zhukovsky, Zhukovsky, Russia
E-mail: ksstrel36@mail.ru

Shustikova Anastasiya Andreevna
The central aerohydrodynamic institute named after N.E. Zhukovsky, Zhukovsky, Russia
E-mail: shustic09@gmail.com

Teperin Leonid Leonidovich
The central aerohydrodynamic institute named after N.E. Zhukovsky, Zhukovsky, Russia
E-mail: teperin@mail.ru

Abstract. The problem of mutual influence of a two parallel road bridges has arisen recently. The new bridges are built close proximity to existing bridges to increase the capacity of highway. The sustainability characteristics of such two parallel road bridges have not been studied enough. Therefore, to safe operation of two parallel bridges, it was necessary to conduct analysis and experimental studies, and also study the behavior of such bridges during exploitation using dynamic monitoring systems. Given their widespread use interference of two close bridges over the river Belaya in Ufa during the operational phase was investigated in this work.

The purpose of the study was to research into the nature and the intensity of aeroelastic oscillation of bridges under conditions of interference, and also to develop recommendations on optimal position of parallel bridges to reduce amplitude of the oscillations.

The results of the study made it possible to estimate the influence of air flow on two close parallel bridges and to offer advice on reduction of vertical oscillation. Overall, the conducted research reveals the most difficult case of interaction. Synchronization of breaking vortices along the span is a random process. In the absence of synchronism, the loads will have a smaller value.

Keywords: aeroelastic stability; bridges aeroelasticity; close parallel bridges; fluid-structure interaction; CFD; vortex shedding; computer modeling; vertical oscillation

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ISSN 2413-9807 (Online)

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