Primjena širokih pragova na željeznici

undergraduate thesis

• Title (english): Application of wide sleepers on railways
• Author: Franjo Nujić
• Mentor: Stjepan Lakušić (mentor)
• Committee member: Maja Ahac (predsjednik povjerenstva)
• Committee member: Stjepan Lakušić (član povjerenstva)
• Committee member: Ivo Haladin (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Transportation Engineering); Zagreb
• Defense date and country: 2020-09-22, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Transportation

Abstract

Kolosiječna konstrukcija sastoji se od gornjeg i donjeg ustroja. Jedan od elemenata gornjeg ustroja su pragovi koji služe za preuzimanje i raspodjelu opterećenja na podlogu. Podjela pragova prema materijalu izrade je na: drvene, čelične, armiranobetonske te pragove od polimera. Kao vrsta betonskog praga, koriste se široki pragovi izrađeni s većom nadležnom površinom kako bi ravnomjernije raspodijelili opterećenje koje preuzimaju od tračnica. Široki se pragovi mogu koristiti na klasičnim kolosiječnim konstrukcijama sa zastornom prizmom te na kolosiječnim konstrukcijama s čvrstom podlogom. U ovome je radu analizirana uporaba širokih pragova na oba tipa kolosijeka te je prikazana njihova usporedba s obzirom na drvene, betonske i čelične pragove.

Abstract (english)

Track construction consists of the superstructure and substructure. Railway sleepers are part the railway superstructure that are used for distributing the load on the substructure. There several types of sleepers based on the material they are made of (wooden, steel, reinforced concrete, and polymers). Wide sleepers are a type of concrete sleepers with a wider surface. Due to the wider contact, load distribution from the rail is more uniform. Wide sleepers can be used at ballasted and ballastless railway tracks. In this paper, the use of wide sleepers analyzed and their comparison concerning wooden, concrete, and steel sleepers is shown.

• Keywords: kolosiječna konstrukcija; gornji ustroj; pragovi; široki pragovi; primjena širokih pragova
• Keywords (english): railway track; sleepers; superstructure; wide sleeper; wide sleeper application
• Language: croatian
• URN:NBN: urn:nbn:hr:237:263470
• Study programme: Title: Civil Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2020-11-03 08:18:35