Naslov
Determination of wind load on antenna tower

Autori
Barle, Jani ; Radica, Danko ; Peroš, Bernardin

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
26th Danubia-Adria Symposium on Advances in Experimental Mechanics / Eichlseder, Winfried (ur.) - Leoben : Montan Universitaet Leoben, 2009, 7-8

ISBN
978-3-902544-02-5

Skup
26th Danubia-Adria Symposium on Advances in Experimental Mechanics

Mjesto i datum
Leoben, Austrija, 23.09.2009. - 26.09.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
wind load ; fatigue ; load spectra

Sažetak
Real-scale field test was performed in region of Dalmatia on wind loaded line-like structure. Influence of wind load on structure was analyzed for two typical winds for this region, Bora and Scirocco. Goal of this paper is to estimate fatigue load spectra. Input variable data (wind speed and direction) was acquired from standard rotating-cup anemometers with vane. Stress in member elements was measured on four level of tower and presented data are from second sensor level. Sensors used for measuring are 1 kΩ , halve and full bridge connected, T-rosette type strain gauges. All measuring devices were connected to one common recording unit. From recording data is perceived that tower response on wind load is predominantly in first vibration mode with respective frequency of 0.97 Hz. Used counting method in analysis is Restricted-Level-Crossing-Counting according to ASTM. The results presented here can also be used in extrapolation for other load intensities and for fatigue life evaluation of existing structures.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Strojarstvo

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