Tehnički vjesnik, Vol. 26 No. 4, 2019.
Izvorni znanstveni članak
https://doi.org/10.17559/TV-20180525142550
Experimental Investigation of the Effect of Temperature on the Structures in the Measurement of Displacements
Boštjan Kovačič
orcid.org/0000-0002-7947-3673
; University of Maribor, Faculty of Civil Engineering, Transportation Engineering and Architecture, Smetanova ulica 17, 2000 Maribor, Slovenia
Nenad Gubeljak
orcid.org/0000-0002-3276-8431
; University of Maribor, Faculty of Mechanical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia
Samo Lubej
orcid.org/0000-0001-6983-4757
; University of Maribor, Faculty of Civil Engineering, Transportation Engineering and Architecture, Smetanova ulica 17, 2000 Maribor, Slovenia
Sažetak
Measurement of displacement and deformation of structures is a very demanding engineering task and is carried out on all existing and newly built bridges and other demanding structures. The results of the measured displacements are thus influenced by several atmospheric parameters, among which the temperature is exposed, since the measurements are usually carried out over the whole day at different seasons and conditions, where the temperature differences are significant. In this paper the influence of temperature on the geodetic measurements of the displacements of the steel structure in the unburdened state is presented. To this end, measurements of the steel bridge during the summer time were performed. The temperature and thermal imaging at various locations every half hour were investigated. To calculate the influence of the temperature on the position of the observed point some statistical methods were used. It is evident from the results that in this kind of geodetic measurements, temperature measurements are indispensable. By taking into account the temperature correction results that are very comparable with the predicted values of displacements which can be obtained. Not observing the temperature can result in misleading values of displacement which can lead to misinterpretation and consideration of the obtained value.
Ključne riječi
accuracy; statistics; structures; surveying; temperature gradient
Hrčak ID:
223293
URI
Datum izdavanja:
25.7.2019.
Posjeta: 1.512 *