000004245 001__ 4245
000004245 005__ 20141118185752.0
000004245 04107 $$acze
000004245 046__ $$k2005-05-31
000004245 100__ $$aLetchford, Chris
000004245 24500 $$aWind-induced Oscillations of Cantilevered Traffic Signal Structures

000004245 24630 $$n10.$$pProceedings of the Tenth Americas Conference on Wind Engineering
000004245 260__ $$bAmerican Association for Wind Engineering, 2005
000004245 506__ $$arestricted
000004245 520__ $$2eng$$aWind-induced oscillations of mast arms of cantilever traffic signal structures can lead to fatigue failure. One such structure with a 13.7 m mast arm has been equipped with a sonic anemometer and a camera that records the motions of the tip of the arm. Initials results of 10 hours of collected data showed that vertical (or in-plane) oscillations are much larger than horizontal (or out-of-plane) oscillations; that the higher amplitude horizontal oscillations have a propensity to occur when the wind is more turbulent; that the higher amplitude vertical oscillations have a higher probability of occurring when the wind speed is steady between 4 to 5 m/s; and that vortex shedding seems to be an important mechanism for generating large amplitude motion in cantilever traffic signal structures More data will be collected to validate these findings. 

000004245 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004245 653__ $$aCantilevered Traffic Signal Structures, Fatigue, Wind-induced Vibrations, Galloping, Vortex Shedding

000004245 7112_ $$aTenth Americas Conference on Wind Engineering$$cBaton Rouge, Louisiana (US)$$d2005-05-31 / 2005-06-04$$g10ACWE
000004245 720__ $$aLetchford, Chris$$iCruzado, Hector J.$$iHuang, Guoqing
000004245 8560_ $$ffischerc@itam.cas.cz
000004245 8564_ $$s851267$$uhttps://invenio.itam.cas.cz/record/4245/files/075-Letchford.pdf$$yOriginal version of the author's contribution as presented on CD, , paper No. 075.
000004245 962__ $$r4178
000004245 980__ $$aPAPER