Učinkovitost asimetričnih vjetrobrana

undergraduate thesis

• Title (english): The effectiveness of asymmetric windshields
• Author: Vjekoslav Novković
• Mentor: Goran Gjetvaj (mentor)
• Committee member: Damir Bekić (predsjednik povjerenstva)
• Committee member: Goran Gjetvaj (član povjerenstva)
• Committee member: Kristina Potočki (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Water Research); Zagreb
• Defense date and country: 2019-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Hydrotechnology

Abstract

Mogućnosti efektivne obrane od vjetra podrazumijevaju znanje o glavnim karakteristikama vjetra i opterećenjima koja vjetar uzrokuje na vozila, što je opisano na početku ovog rada. Opisani su utjecaj vjetra na sigurnost prometa i načini zaštite prometnica od štetnog djelovanja vjetra od prevrtanja vozila do zatvaranja prometnica (uglavnom preko mostova i vijadukata). Prometnice se najčešće zaštićuju vjetrobranima, ali postoje i drugi oblici zaštite (nasipi, pošumljavanje, kombinacije navedenog). Kako bi odabrali najpovoljniju i najučinkovitiju metodu zaštitite prometnica provodimo razna ispitivanja kao što su fizikalna ispitivanja u vjetrovnom tunelu, a u novije vrijeme sve se češće koriste i ispitivanja numeričkim metodama. Postoje i primjeri kada se ispitivanja vrše direktno na terenu, na probnom polju, kao što je to slučaj s Masleničkim mostom. U sklopu ovog rada detaljnije je analizirana zaštita propusnim vjetrobranima i to asimetričnim propusnim vjetrobranima tipa 2A i 2B.

Abstract (english)

Possibilities for effective wind defence include knowledge of wind characteristics and loads on vehicles caused by wind, which are described at the beginning of this paper. The impact of wind and ways to protect the roads from wind damage such as rolling over vehicles or closing roads is also described. Roads are usually protected with windshields but there are other ways of protections (such as: embankments, afforestation and various combinations of this two ways of protections). In order to choose the most appropriate and effective method of protecting the roads, we have many test options like physical testing in a wind tunnel and in recent times we use tests by numerical methods. There are examples of testing directly on the field as is the case with Maslenica bridge. Within this paper, protection with asymmetric windshields (type 2A and 2B) is described in more details.

• Keywords: vjetar; obrana od vjetra; sigurnost prometa; prometnice
• Keywords (english): wind; defense against the wind; road safety; roads
• Language: croatian
• URN:NBN: urn:nbn:hr:237:873756
• 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: 2019-11-29 12:26:07