Betonske zaštitne ograde na cestama

undergraduate thesis

• Title (english): Concrete safety barriers on roads
• Author: Josip Ivanković
• Mentor: Vesna Dragčević (mentor)
• Committee member: Ivica Stančerić (predsjednik povjerenstva)
• Committee member: Saša Ahac (član povjerenstva)
• Committee member: Vesna Dragčević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Transportation Engineering); Zagreb
• Defense date and country: 2020-09-08, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Transportation

Abstract

U ovom radu opisuju se betonske zaštitne odbojne ograde kroz važeće pravilnike i norme. Uvod donosi opće podatke o zaštitnim odbojnim ogradama, kao i podatke o učinkovitosti zaštitnih ograda prema glavnim kriterijima: kriteriju zadržavanja vozila, kriteriju ozbiljnosti učinka udara na korisnike vozila te kriteriju deformacije zaštitne ograde. Nadalje, opisani su razni tipovi betonskih ograda kroz njihove dimenzije, prednosti i mane, načini djelovanja i ponašanja ograde prilikom sudara te različita mjesta postavljanja betonskih zaštitnih odbojnih ograda, sukladno s postojećim pravilima. Također, obrađeni su i materijali od kojih se betonske ograde izrađuju, od najčešće korištenog armiranog betona do danas aktualnih recikliranih materijala. Objašnjena su različita ispitivanja kvalitete betonskih zaštitnih ograda na umanjenim i prirodnim modelima te korištenjem suvremenih programa i softvera, kao i načini proizvodnje betonskih ograda: „in situ“ postupak na samom gradilištu i industrijski postupak. U istom poglavlju opisano je pravilno postavljanje i sidrenje betonskih zaštitnih ograda. Na kraju rada, analizirano je stanje betonskih ograda u Hrvatskoj na važnijim autocestama i državnim cestama.

Abstract (english)

This paper describes concrete safety barriers through valid regulations and norms. Introduction provides general data for safety barriers, as well as efficiency data of safety barriers according to main criteria: vehicle retention criterion, criterion of severity of impact on vehicle users and criterion of deformation of safety barrier. Furthermore, various types of concrete barriers are described through their dimensions, advantages and defects, mode of performance and their behaviour during collision and different places of installation of concrete safety barriers, in accordance with the existing norms. Also, materials that concrete barriers are made of, from most frequently used reinforced concrete to currently used recycled materials, have been described. Various quality tests of concrete safety barriers on scaled and natural models, the use of modern programs and softwares, as well as methods of production of concrete barriers are explained: „in situ“ procedure at the construction site and industrial procedure. The same chapter describes the proper installation and anchoring of concrete safety barriers. At the end of the paper, the use of concrete barriers in Croatia on important highways and state roads was analysed.

• Keywords: betonske zaštitne ograde; učinkovitost betonskih zaštitnih ograda; način djelovanja; materijali izrade; ispitivanja kvalitete; postupci proizvodnje
• Keywords (english): concrete safety barriers; efficiency of concrete safety barriers; mode of performance; construction materials; quality tests; way of production
• Language: croatian
• URN:NBN: urn:nbn:hr:237:586154
• 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: 2020-09-18 07:21:12