Analiza složenog stanja naprezanja konzolnog nosača

undergraduate thesis

• Title (english): Cantilever beam complex stress state analysis
• Author: Antonio Jaguljnjak
• Mentor: Krešo Ivandić (mentor)
• Committee member: Igor Petrović (predsjednik povjerenstva)
• Committee member: Krešo Ivandić (član povjerenstva)
• Committee member: Filip Dodigović (član povjerenstva)
• Committee member: Stjepan Strelec (član povjerenstva)
• Committee member: Mario Gazdek (član povjerenstva)
• Granter: University of Zagreb; Faculty of Geotechnical Engineering; Varaždin
• Defense date and country: 2020-07-17, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences; Environmental Engineering

Abstract

U radu se daje analiza ponašanja konzolnog nosača kod izvedbe zaštitne konstrukcije
iskopa građevinske jame.
Na početku rada opisuje se što je to savijanje, koje su to geometrijske osobine presjeka,
koje vrste savijanja postoje, također će se pobliže objasniti pojam neutralne linije nosača
te crtanje dijagrama naprezanja u poprečnom presjeku.
Nakon teoretskog osvrta slijedi praktični dio koji je izrađen u programu GeoStudio 2012
(Sigma/W). Analiza dobivenih podataka iz spomenutog programa izrađena je u programu
Excel iz programskog paketa Microsoft Office.
U praktičnom djelu ovog rada provedena je analiza naprezanja zaštitne konstrukcije
iskopa pomoću AB pilota promjera 30 cm, dijafragme debljine 30 cm, profila IPE 160
S355 te okruglim cijevnim profilima promjera 168,8 mm, debljine stijenki 4,5 mm za
dubine iskopa u tlu od 2, 4 te 6 metara.
Na kraju rada su rezultati dobiveni analizom pojašnjeni i međusobno uspoređeni te se
došlo do zaključka koja se vrsta zaštite iskopa najbolje pokazala pri određenim dubinama
iskopa.

Abstract (english)

The paper aims to determine and calculate which type of a cantilever girder is the safest
in the implementation of pit excavation protection.
The paper starts with the explanation of bending, the geometric properties of a cross
section, and bending types. Also, the concept of a neutral line of a girder is explained in
more detail and a stress diagram of a cross section is drawn.
The theoretical review is followed by a practical part created in GeoStudio 2012 (Sigma
/ W), and Excel from the Microsoft Office software package is used for the interpretation
of the data. In the practical part of the paper, the analysis of excavation protection stresses
is performed using reinforced concrete piles which are 30 cm in diameter, the diaphragm
is 30 cm thick, IPE 160 S355 profile and round pipe profiles are 168.8 mm in diameter
and for excavation depths of 2 , 4 and 6 meters the wall is 4.5 mm thick.
Finally, the results of the analysis are explained and compared and it is concluded which
type of excavation protection is the best at certain excavation depths.

• Keywords: konzolni nosač; savijanje
• Keywords (english): cantilever girder; bending
• Language: croatian
• URN:NBN: urn:nbn:hr:130:431169
• Study programme: Title: Environmental Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/ baccalaurea) inženjer/ inženjerka inženjerstva okoliša (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/ baccalaurea) inženjer/ inženjerka inženjerstva okoliša)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-10-06 07:53:22