2014
DOI: 10.5862/mce.49.7
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Influence of the shape on aerodynamic characteristics of girder bridges

Abstract: Влияние формы на аэродинамические характеристики балочных мостов К.ф.-м.н., доцент Ю.А. Гостеев; к.т.н., доцент А.Д. Обуховский; д.т.н., заведующий кафедрой С.Д. Саленко, Новосибирский государственный технический университет Аннотация. Для достоверных расчетов ветровых нагрузок и предотвращения аэроупругих колебаний пролетных строений необходимы исследования аэродинамических характеристик как конкретных проектируемых мостов, так и типовых сечений пролетных строений. Анализ информации по проблеме показал, что в… Show more

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“…The first frequency proved to be 0.38 Hz. The experimental frequency fexp = 0.42 Hz was determined using information of prof. Salenko about the bridge oscillations [15]. The difference between the computation and experiment was 10%.…”
Section: Resultsmentioning
confidence: 90%
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“…The first frequency proved to be 0.38 Hz. The experimental frequency fexp = 0.42 Hz was determined using information of prof. Salenko about the bridge oscillations [15]. The difference between the computation and experiment was 10%.…”
Section: Resultsmentioning
confidence: 90%
“…The frequency of the induced aerodynamic force impacting the Volgogradsky Bridge span structure during its transversal overflowing by the air flow will depend on the wind velocity and will be determined by the ratio n = 0.13V/h. The proper oscillation frequency of the Volgogradsky Bridge in the first oscillation form is f= 0.42 Hz [15]. When the vortex shedding frequency coincides with the proper oscillation frequency of the bridge, conditions emerge for the wind resonance to occur.…”
Section: Resultsmentioning
confidence: 99%
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“…It is known for example that the shape of the building affects thermal insulation properties (due to convex qualities of building) [18]. Furthermore, it affects the speed and direction of wind that ventilate building or construction [19].The project proposal to strengthen the wind flow by streamlining facades is considered in this article.…”
Section: Introductionmentioning
confidence: 99%