000009134 001__ 9134
000009134 005__ 20141204092411.0
000009134 04107 $$aeng
000009134 046__ $$k12/05/2014
000009134 100__ $$aUrushadze, S.
000009134 24500 $$aExperimental and numerical verification of vortex induced vibration of hangers on the footbridge

000009134 24630 $$n18.$$pEngineering Mechanics 2012
000009134 260__ $$bInstitute of Theoretical and Applied Mechanics, AS CR, Prague
000009134 506__ $$arestricted
000009134 520__ $$2eng$$aThe 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 their 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.

000009134 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009134 653__ $$afootbridge, vortex-induced oscillations, Kármán vortex, fluid dynamics

000009134 7112_ $$aEngineering Mechanics 2012$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2012
000009134 720__ $$aUrushadze, S.$$iPirner, M.$$iPospíšil, S.$$iKrál, R.
000009134 8560_ $$ffischerc@itam.cas.cz
000009134 8564_ $$s727525$$uhttps://invenio.itam.cas.cz/record/9134/files/022_Urushadze_S-FT.pdf$$yOriginal version of the author's contribution as presented on CD, paper (No. 022).
000009134 962__ $$r8924
000009134 980__ $$aPAPER