Analiza naprezanja u lančanicama

undergraduate thesis

• Title (english): Stress analysis in cable elements
• Author: Stjepan Vidojević
• Mentor: Ivan Duvnjak (mentor)
• Committee member: Ivan Duvnjak (predsjednik povjerenstva)
• Committee member: Ana Skender (član povjerenstva)
• Committee member: Marina Frančić Smrkić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Engineering Mechanics); Zagreb
• Defense date and country: 2022-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

U okviru završnog rada obrađena je tema naprezanja u nosivim sustavima oblika lančanice. Dane su osnovne pretpostavke i pravila koje moramo uzeti u obzir kod pristupanja proračunu takvog sustava kao i primjer jednog takvog proračuna za pješački most preko rijeke Cetine u Trilju. Lančanice su posebno zanimljivi sustavi jer prenose samo uzdužnu vlačnu silu koju distribuiraju u dvije fiksne točke na svojim krajevima ili u slučaju visečih mostova u sidrene blokove. Sposobne su preuzeti izuzetna opterećenja uz relativno jednostavnu izvedbu što je još više izraženo u poslijednje vrijeme zahvaljujući napretku informatičkih znanosti koje pomažu pri odabiru najpogodnijeg rješenja za izvedbu takve konstrukcije i pogodne su za preuzimanje velikih opterećenja na iznimno dugim rasponima. Konstukcija samog užeta lančanice je složena te iziskuje zadovoljenje nekoliko ključnih kriterija. Osim iznimne vlačne čvrstoće čelika kao osnovnog materijala za izradu užeta, također treba uzeti u obzir otpornost na uzdužne deformacije, antikorozivnu zaštita i sl. U nastavku su pobliže obrađeni svi navedeni pojmovi i dani su prikladni primjeri za bolje razumijevanje principa sustava lančanica.

Abstract (english)

The final paper deals with the topic of stress in cable elements. Basic assumptions and rules we need to take into consideration when attempting to calculate such a system are presented as well as an example of one such problem in case of a pedestrian bridge over Cetina river in the town of Trilj. Cable elements are particularly interesting systems because only tensile force is applied to them which is then distributed to two fixed points at its ends or in the case of suspended bridges where the force is transferred to anchoring blocks. While they are capable of taking on exceptional loads with a relatively simple realization, which is even more pronounced in recent times thanks to the progress of computer science, which helps in choosing the most suitable solution for achieving such a structure and is suitable for taking on large loads on extremely long spans. Construction of the very cable is complicated and ought to sastisfy certain key criteria. Apart of the great tensile strenght of steel which is a material mainly used in the production of cables, we also need to take into consideration axial deformation resistance, anticorrosive coating etc. All of the terms mentioned above are processed in detail in the follow-up as well as various examples necessary for better understanding of the cable elements.

• Keywords: Lančanica; naprezanje; uže; napetost užeta
• Keywords (english): Cable elements; stress; tension force
• Language: croatian
• URN:NBN: urn:nbn:hr:237:577917
• 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: 2023-03-31 06:08:25