20.500.12556/RUL-132868 Investigation of the precision in geodetic reference-point positioning because of temperature-induced pillar deflections To perform geodetic measurements of displacements of the ground and manmade constructions, stabilised reference points are needed from which control points on the object or its surroundings could be measured. Reference points are most commonly stabilised with reinforced concrete pillars; however, they are not always constructed in an appropriate manner. The influence of temperature variation within a pillar on the position of the fixed screw for forced centring is not negligible and should be considered when performing precise measurements. In this research paper, the displacement of a pillar was calculated as a result of the temperature changes in the pillar, and then an experiment was performed in which the pillar was heated from one side, and the horizontal displacement of the fixed screw for forced centring was measured. Both, calculations and measurements, show that at a temperature difference of 16.2 °C, the fixed screw on a 1.5 m high pillar moves by approximately 1 mm, which is a displacement that should be taken into account in precise measurements. reinforced concrete pillar based reference point influence of temperature calculated displacement measured displacement temperature distribution true false true Angleški jezik Ni določen Članek v reviji 2021-11-05 13:42:35 2021-11-05 13:42:37 2022-09-12 04:14:07 0000-00-00 00:00:00 2019 0 0 13 str. iss. 16, art. 3489 Vol. 19 2019 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 528 1424-8220 10.3390/s19163489 8872545 RAZ_Mocnik_Robert_2019.pdf RAZ_Mocnik_Robert_2019.pdf 1 7E9A61BCA1D131250629878EF22566D4 5a62161b965fde95ad6c1b31717c089d661f4c25b47503c48e26c85771985655 11906328-3e36-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=150613 https://www.mdpi.com/1424-8220/19/16/3489 1 cf50b8ab-3e35-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=150612 Fakulteta za gradbeništvo in geodezijo 0 0 0