20.500.12556/RUL-129179 Modeliranje in analiza pasivno varnih polietilenskih obcestnih stebričkov Modelling and analysis of passively safe polyethylene roadside bollards V diplomski nalogi so predmet raziskave in preračunov pasivno varni stebrički. Glavni problem je njihova skladnost s trenutno veljavno slovensko zakonodajo in neželene ter nepredvidene poškodbe, ki nastajajo pri njihovi uporabi. V sklopu pregleda literature je poudarek na slovenskem pravilniku za cestno opremo. Predstavljeni so tudi evropski standardi, ki veljajo v Sloveniji, ter izračuni, ki jih narekuje slovenski pravilnik. V praktičnem delu naloge je zasnovan postopek za izračun obremenitev PVS pri pluženju in predstavljen potek meritev gostote snega. Predstavljena je konstrukcijska rešitev temelja, ki preprečuje neželen zasuk PVS. Rezultati so pokazali, da pri običajnih pogojih PVS brez težav prestanejo pluženje in da sta zelo pomembna dejavnika hitrost pluga ter gostota snega. Kar se tiče zagotavljanja pasivne varnosti, je najbolje, da ostane geometrija PVS takšna, kot je, in se več pozornosti posveti odstranitvi snega z vozišča. This diploma thesis deals with passively safe polyethylene roadside bollards (PSB). The main problems are their compliance with the current Slovenian legislation as well as the unwanted and inadvertent damage that occurs in their application. The literature section focuses on the Slovenian Rules on Traffic Signs and Equipment on Roads. European standards, valid in Slovenia, are presented as well as the calculations that the Slovenian rules dictate. In the practical part of the thesis, the procedure is designed for calculating the load of PSB during ploughing. The course of measuring snow density and the design solution of the base that prevents the unwanted twist of the PSB are also presented. The results have shown that under normal conditions the PSB undergo ploughing without difficulty; two crucial factors are the speed of the plough and snow density. As far as ensuring passive safety goes, it is best to leave the PSB geometry as it is; more attention should be paid to removing snow from the carriageway. pregled standardov analiza poškodb gostota snega obremenitve pluženja konstrukcijska rešitev standards check damage analysis snow density snow ploughing load design solution true false false [J. Jordan Kozjak] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2021-08-28 08:31:00 2021-08-28 08:31:03 2022-09-08 04:07:04 0000-00-00 00:00:00 2021 0 Ljubljana 0 XXII, 57 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 625.748:006.3/.8(497.4)(043.2) 232450 76431363 10271.pdf 10271.pdf 1 1C0DDBD8514D29F440F11C854737F29A 02ffac4de2b7047e3bc980fcdaa19f8a7717a446468ae6b8a973bc075056d92f 4b1fa436-07c9-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=146125 Fakulteta za strojništvo 0 0 0