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Statements

Subject Item
n2:RIV%2F68378297%3A_____%2F12%3A00383999%21RIV13-GA0-68378297
rdf:type
n10:Vysledek skos:Concept
dcterms:description
The paper deals with vortex-induced oscillations of footbridge hangers at a very low wind speed. The two-spans (2x50m) reinforced concrete structure with the central pylon (25m height) is designed as the harp system of hangers with circular cross-section. The oscillations were observed at the low wind speed and the high double amplitudes has been measured. The wind-excited deformation shape corresponded to the 6th, 7th and 8th natural modes of a hanger. The individual hanger as well as thein group were analysed to estimate the dynamic response, possible aeroelastic vibration and special interference or coupling effects. It also includes proposal for the elimination of the extensive vibration. The analysis is complemented by numerical investigation using Computational Fluid Dynamics methods. The paper deals with vortex-induced oscillations of footbridge hangers at a very low wind speed. The two-spans (2x50m) reinforced concrete structure with the central pylon (25m height) is designed as the harp system of hangers with circular cross-section. The oscillations were observed at the low wind speed and the high double amplitudes has been measured. The wind-excited deformation shape corresponded to the 6th, 7th and 8th natural modes of a hanger. The individual hanger as well as thein group were analysed to estimate the dynamic response, possible aeroelastic vibration and special interference or coupling effects. It also includes proposal for the elimination of the extensive vibration. The analysis is complemented by numerical investigation using Computational Fluid Dynamics methods.
dcterms:title
Experimental and numerical verification of vortex-induced vibration of hangers on the footbridge Experimental and numerical verification of vortex-induced vibration of hangers on the footbridge
skos:prefLabel
Experimental and numerical verification of vortex-induced vibration of hangers on the footbridge Experimental and numerical verification of vortex-induced vibration of hangers on the footbridge
skos:notation
RIV/68378297:_____/12:00383999!RIV13-GA0-68378297
n10:predkladatel
n18:ico%3A68378297
n3:aktivita
n8:I n8:P
n3:aktivity
I, P(GA103/09/0094), P(GAP105/10/2159)
n3:dodaniDat
n4:2013
n3:domaciTvurceVysledku
n9:7050836 n9:6011306 n9:4176642 n9:9495193
n3:druhVysledku
n21:D
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
135535
n3:idVysledku
RIV/68378297:_____/12:00383999
n3:jazykVysledku
n20:eng
n3:klicovaSlova
footbridge; vortex-induced oscillations; Kármán vortex; fluid dynamics
n3:klicoveSlovo
n5:K%C3%A1rm%C3%A1n%20vortex n5:fluid%20dynamics n5:vortex-induced%20oscillations n5:footbridge
n3:kontrolniKodProRIV
[B4458233228D]
n3:mistoKonaniAkce
Svratka
n3:mistoVydani
Prague
n3:nazevZdroje
Engineering Mechanics 2012
n3:obor
n16:JM
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n17:GAP105%2F10%2F2159 n17:GA103%2F09%2F0094
n3:rokUplatneniVysledku
n4:2012
n3:tvurceVysledku
Urushadze, Shota Král, Radomil Pospíšil, Stanislav Pirner, Miroš
n3:typAkce
n19:EUR
n3:zahajeniAkce
2012-05-14+02:00
s:numberOfPages
8
n14:hasPublisher
ITAM AS CR, v. v. i.
n11:isbn
978-80-86246-39-0