Experimental analysis of frequency tuning influence on the response stability of bridge girders under wind action

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F11%3A00361436" target="_blank" >RIV/68378297:_____/11:00361436 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Experimental analysis of frequency tuning influence on the response stability of bridge girders under wind action

Popis výsledku v původním jazyce

In this article, a wind tunnel analysis of a double-degree-of-freedom (DDOF) system represented by sectional bridge girders is carried out. The analysis is focused on the influence of the natural frequencies ratio on the initiation of unstable vibration.The article also discusses experimentally ascertained response regimes, with an emphasis on their stability character. The assessment of the response is based on the hysteresis loops and separation curves determining the stability boundaries. The influence of initial disturbance on the stability is examined. Two types of girder were investigated: (i) rectangular cross-section with the aspect ratio 1:5, and, (ii) bridge-like girder with analogous principal dimensions. For both types of decks, the limitsof the stability are significantly affected by initial disturbance.

Název v anglickém jazyce

Experimental analysis of frequency tuning influence on the response stability of bridge girders under wind action

Popis výsledku anglicky

In this article, a wind tunnel analysis of a double-degree-of-freedom (DDOF) system represented by sectional bridge girders is carried out. The analysis is focused on the influence of the natural frequencies ratio on the initiation of unstable vibration.The article also discusses experimentally ascertained response regimes, with an emphasis on their stability character. The assessment of the response is based on the hysteresis loops and separation curves determining the stability boundaries. The influence of initial disturbance on the stability is examined. Two types of girder were investigated: (i) rectangular cross-section with the aspect ratio 1:5, and, (ii) bridge-like girder with analogous principal dimensions. For both types of decks, the limitsof the stability are significantly affected by initial disturbance.

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of 13th International Conference on Wind Engineering

ISBN

978-1-907132-33-9

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

1-8

Název nakladatele

Multi-Science Publishing Co Ltd

Místo vydání

Amsterdam

Místo konání akce

Amsterdam

Datum konání akce

10. 7. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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