Stupovi uz prometnice

undergraduate thesis

• Title (english): Roadside columns
• Author: Iva Crnjac
• Mentor: Višnja Tkalčević Lakušić (mentor)
• Committee member: Krešimir Fresl (predsjednik povjerenstva)
• Committee member: Mladen Meštrović (član povjerenstva)
• Committee member: Višnja Tkalčević Lakušić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Engineering Mechanics); Zagreb
• Defense date and country: 2023-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

Svrha i cilj ovog završnog rada je objasniti primjenu pasivno pouzdane opreme uz prometnice, točnije stupova. Objasnit će se ponašanje takvih stupova, vrste s obzirom na materijal izrade, te prednosti i nedostaci pasivno pouzdanih stupova. Obzirom na materijal opisani su drveni, čelični, aluminijski te kompozitni stupovi, također opisani su postupci zaštite navedenih materijala od štetnih utjecaja, korozije i slično. Najveći dio ovog završnog rada baziran je na ponašanju pasivno pouzdanih stupova. Pasivno pouzdani stupovi su projektirani da budu posebno stabilni i izdržljivi kako bi se osigurala pouzdanost u različitim uvjetima. Kod njih razlikujemo stupove koji apsorbiraju energiju i one koji ne apsorbiraju energiju. Glavno obilježje koje karakterizira pasivno pouzdane stupove je manja vjerojatnost za opasne ozljede putnika u vozilu koji je udario u stup. Stupovi koji ne apsorbiraju energiju nemaju sposobnost značajnog usporavanja, tijekom sudara s vozilom, već zadržavaju svoju čvrstu strukturu i često se razbijaju ili padaju kada su izloženi sudaru. Stupovi koji apsorbiraju energiju usporavaju i zaustavljaju vozilo, te dolazi do njegovog savijanja ispod vozila.

Abstract (english)

The purpose and objective of this final thesis is to explain the application of passive reliable equipment alongside roadways, specifically focusing on poles. The behaviour of such poles will be explained, types based on the construction materials will be described, as well as the advantages and disadvantages of passive reliable poles. Regarding materials; wooden, steel, aluminium, and composite poles will be discussed, and methods for protecting these materials from harmful influences, corrosion, and such will be explained. The majority of this final thesis will be concentrated on the behaviour of passive reliable poles. Passive reliable poles are designed to be particularly stable and durable to ensure reliability in various conditions. Among them, we distinguish poles that absorb energy and those that do not. The main characteristic that describes passive reliable poles is a lower probability of severe injuries to passengers in a vehicle that has collided with a pole. Poles that do not absorb energy do not have the ability to significantly slow down during a collision with a vehicle but retain their solid structure and often break or fall when exposed to a collision. Poles that absorb energy slow down and stop the vehicle which leads to bending underneath the vehicle.

• Keywords: stup; materijal; pasivna pouzdanost; apsorpcija energije; putnik; vozilo
• Keywords (english): pole; material; passive reliability; energy absorption; passenger; vehicle
• Language: croatian
• URN:NBN: urn:nbn:hr:237:783591
• 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: 2023-10-23 08:41:46