diplomska naloga
Adis Sianović (Author), Jože Korelc (Mentor), Tomo Cerovšek (Thesis defence commission member), Primož Može (Co-mentor)

Abstract

Brv čez Gruberjev prekop

Keywords

gradbeništvo;OG-MK;diplomska dela;VS;brv;jeklo;frekvenca;dimenzioniranje;

Data

Language: Slovenian
Year of publishing:
Source: Ljubljana
Typology: 2.11 - Undergraduate Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: [A. Sinanović]
UDC: 624.21(043.2)
COBISS: 6398561 Link will open in a new window
Views: 3284
Downloads: 552
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Other data

Secondary language: English
Secondary title: Footbridge over the Bruber canal
Secondary abstract: The graduation thesis discusses the calculation and design of the footbridge over The Gruber Canal. The structure was designed by Jaša Sketelj, a graduate of the Faculty of Architecture. The bridge is designed as a steel space frame truss to which a concrete slab is attached, which gives an extra rigidity to the structure. Since the footbridge is very slender and light weight for the design of the footbridge the ultimate limit state is not critical, but serviceability limit state is. Pedestrians who use the footbridge impose frequency on the structure, which, if the imposed frequency, is similar to own frequency can cause oscillation of the structure. In order to reduce this oscillation we have 3 measures: to increase rigidity, to reduce mass, or to increase the damping of the structure. At first a steel variant was discussed. Because this variant has insufficient own frequencies and does not comply with the recommendations that the Eurocode provides, several more computational models were tested. The final variant is a composite structure. The concrete slab, attached to the steel part of the structure, gives it additional rigidity, and thereby increases its own frequency. Since the own frequencies of the structure still do not meet the requirements Eurocodes provides, it would be necessary to perform a more detailed dynamic analysis.
Secondary keywords: graduation thesis;civil engineering;OG-MK;footbidge;steel;frequency;oscillation;desig;
File type: application/pdf
Type (COBISS): Bachelor thesis/paper
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: XI, 79 str., [7] pril.
Type (ePrints): thesis
Title (ePrints): Footbridge over the Bruber canal
Keywords (ePrints): brv;jeklo;frekvenca;nihanje;dimenzioniranje
Keywords (ePrints, secondary language): footbidge;steel;frequency;oscillation;design
Abstract (ePrints): V diplomski nalogi je obravnavan izračun in dimenzioniranje brvi čez Gruberjev prekop. Konstrukcijo je zasnoval Jaša Sketelj, diplomant Fakultete za arhitekturo. Brv je zasnovana kot jekleno prostorsko paličje, na katerega je pritrjena betonska plošča, ki konstrukciji daje dodatno togost. Ker je brv zelo vitka in lahka, za dimenzioniranje brvi ni kritično mejno stanje nosilnosti, ampak mejno stanje uporabnosti. Pešci, ki brv uporabljajo s svojim gibanjem na konstrukcijo vsiljujejo frekvenco, ki je lahko, če je vsiljena, podobna lastni frekvenci, povzroči nihanje konstrukcije. Da bi zmanjšali amplitudo nihanja, imamo na voljo 3 ukrepe: povečamo togost, zmanjšamo maso ali povečamo dušenje konstrukcije. Najprej je bila obravnavana jeklena varianta izvedbe. Ker je ta imela premajhne lastne frekvence in ni zadoščala priporočilom, ki jih podaja Evrokod, je bilo preizkušenih več računskih modelov. Končna varianta konstrukcije je sovprežna. Betonska plošča, pritrjena na jekleni del konstrukcije, daje konstrukciji dodatno togost in s tem povečuje njene lastne frekvence. Ker lastne frekvence konstrukcije še vedno ne izpolnjujejo zahtev, ki jih podaja Evrokod, bi bilo potrebno izvesti natančnejšo dinamično analizo.
Abstract (ePrints, secondary language): The graduation thesis discusses the calculation and design of the footbridge over The Gruber Canal. The structure was designed by Jaša Sketelj, a graduate of the Faculty of Architecture. The bridge is designed as a steel space frame truss to which a concrete slab is attached, which gives an extra rigidity to the structure. Since the footbridge is very slender and light weight for the design of the footbridge the ultimate limit state is not critical, but serviceability limit state is. Pedestrians who use the footbridge impose frequency on the structure, which, if the imposed frequency, is similar to own frequency can cause oscillation of the structure. In order to reduce this oscillation we have 3 measures: to increase rigidity, to reduce mass, or to increase the damping of the structure. At first a steel variant was discussed. Because this variant has insufficient own frequencies and does not comply with the recommendations that the Eurocode provides, several more computational models were tested. The final variant is a composite structure. The concrete slab, attached to the steel part of the structure, gives it additional rigidity, and thereby increases its own frequency. Since the own frequencies of the structure still do not meet the requirements Eurocodes provides, it would be necessary to perform a more detailed dynamic analysis.
Keywords (ePrints, secondary language): footbidge;steel;frequency;oscillation;design
ID: 8312943