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2015, vol. 3, br. 1, str. 9-15
Structural health monitoring of bridges using accelerometers: A case study at Apollo bridge in Bratislava
(naslov ne postoji na srpskom)
Slovak University of Technology, Faculty of Civil Engineering, Bratislava, Slovak Republic

e-adresaimrich.liptak@stuba.sk
Projekat:
Slovak Researchand Development Agency No. APVV-0236-12

Ključne reči: accelerometer; dynamic deformation; frequency; periodogram; spectral analysis
Sažetak
(ne postoji na srpskom)
Civil engineering structures are extremely sensitive at influence of outdoor conditions. Most often these are the influence of wind, sunshine, temperature changes of the surrounding and at least the influence of the own or other loading. According to resonance of the structure with the surrounding is coming to vibration and oscillation in relative high frequency interval (0.1 Hz - 100.0 Hz). These phenomena significantly could affect the static and dynamic characteristics of structures, their safety and functionality. The paper brings an example of monitoring these phenomena. The object of monitoring is the Danube Bridge Apollo in Bratislava, which main steel structure was monitored by acceleration sensors at the frequency level up to 10 Hz. The main topic of the paper is the analysis of dynamic behavior of structure using spectral analysis method. The usage of Fourier Transform is described, own frequencies and amplitudes of structure oscillation are calculated.
Reference
Beňo, J., Szabó, R. (2006) The Apollo Bridge over Danube in Bratislava by view of general contractor. u: 14th. Slovak geodetic days, Bratislava: Chamber of surveyors and cartographers, Proceedings, pp. 147-160, ISBN 80-969566-6-3
Cipra, T. (1986) Time series analysis with applications in economics. Prague: SNTL/ALFA, 246 pp
Cooley, W.J., Tukey, J.W. (1965) An algorithm for the machine calculation of complex Fourier series. Mathematics of Computation, 19, 297-301
Hottinger Baldwin Messtechnik (2000) Acceleration transducer B12. 2012-04-15, http://www.hbm.com.pl/arch/a0764.pdf
Hwang, J., Yun, H., Park, S., Lee, D., Hong, S. (2012) Optimal Methods of RTK-GPS/Accelerometer Integration to Monitor the Displacement of Structures. Sensors, 12(12): 1014-1034
Kopáčik, A., Kyrinovič, P., Erdélyi, J., Lipták, I. (2011) New trends of automated bridge monitoring. Reports on Geodesy, ISSN 0867-3179. No. 1 (90). pp. 173-181
Kopáčik, A., Kyrinovič, P., Lipták, I., Erdélyi, J. (2011) Automated monitoring of the Danube bridge Apollo in Bratislava. u: FIG Working Week 2011: 6th National congress of ONIGT, Bridging the gap between cultures, Marrakech, Morocco, 18. 22.5, (p. 11). ISBN 978-87-90907-92-1, 2011
Kopáčik, A., Lipták, I. (2011) Frequency analysis of structure deformation. u: Joint international symposium on deformation monitoring, Hong Kong, China: 2. 4.11, Proceedings
Kuo, S., Lee, B. (2001) Real-time digital signal processing. John Wiley & Sons Ltd, ISBN 0-470-84137-024. 496 p
Siegel, A.F. (1980) Testing for Periodicity in a Time Series. Journal of the American Statistical Association, 75(370): 345-348
 

O članku

jezik rada: engleski
vrsta rada: originalan članak
DOI: 10.14438/gn.2015.03
objavljen u SCIndeksu: 24.06.2015.

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